Ground Sense Operational Amplifier
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- Blaze Harrison
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1 TECHNICAL NOTE General-purpose Operational Amplifier/Comparator Ground Sense Operational Amplifier BA3F/FV,BA3AF/FV,BA9F/FV/FVM,BA9F/FV/KN BA3F/FVM Description General-purpose BA3/BA3A family and high-reliability BA9/BA9 family integrate two independent Op-Amps and phase compensation capacitors on a single chip and have some features of high-gain, low power consumption, and operating voltage range of 3[V] to 3[V] (single power supply). BA3family is realized high speed operation and reduce the crossover distortions that compare with BA3, BA9. General-purpose Dual BA3 family High-reliability Quad Dual Quad BA3A family BA9 family BA9 family Dual BA3 family Features ) Operable with a single power supply ) Low supply current ) Wide operating supply voltage 7) High open loop voltage gain 3.[V] to3.[v] (Single supply) ) Internal ESD protection (BA3 / BA3A / BA9 / BA9 family) Human body model (HBM) ±[V](Typ.).[V] to3.[v] (Single supply) (BA3 family) 9) (BA9/BA9/BA3 family) Gold PAD (BA9/BA9/BA3 family) 3) Standard Op Amp. Pin-assignments ) Wide temperature range ) Input and output are operable nearly GND level [] to[] ) Internal phase compensation type (BA9/BA9 family) [] to[] (BA3/BA3A/BA3 family) Pin Assignments OUT -IN +IN VEE 3 CH CH 7 VCC OUT -IN +IN OUT -IN +IN 3 VCC +IN -IN OUT 7 CH CH CH CH3 OUT 3 -IN +IN VEE +IN3 9 -IN3 OUT3 +IN VCC NC +IN 3 -IN OUT OUT -IN 3 -IN CH CH CH CH3 7 OUT OUT3 -IN3 9 +IN VEE NC +IN3 SOP SSOP-B MSOP SOP SSOP-B VQFN BA3F BA9F BA3F BA3FV BA9FV BA9FVM BA3FVM BA3AF BA9F BA3AFV BA9FV BA9KN 7. October
2 BA3 family, BA3A family Absolute maximum rating (Ta=[]) Parameter Symbol BA3 family Rating BA3A family Unit Supply Voltage VCC-VEE +3 V Differential Input Voltage(*) Vid VCCVEE V Input Common-mode voltage range Vicm VEE to VCC V Operating Temperature Topr - to + Storage Temperature Tstg - to + Maximum Junction Temperature Tjmax + Note: Absolute maximum rating item indicates the condition which must not be exceeded. Application of voltage in excess of absolute maximum rating or use out absoluted maximum rated temperature environment may cause deterioration of characteristics. (*) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more then VEE. Electrical characteristics Unless otherwise specified VCC=+[V], VEE=[V], Ta=[] Parameter Symbol Temperature Range BA3 family Guaranteed limit BA3A family Min. Typ. Max. Min. Typ. Max. Unit Condition Input offset voltage Vio mv RS= Input offset current Iio - - na - Input Bias current Ib - - na - Supply current ICC ma RL=, All Op-Amps High level output voltage VOH VCC V RL=[k] Low level output voltage VOL mv RL=[k] Large signal voltage gain AV - - V/mV RL[k],VCC=[V] Input common-mode voltage range Vicm - VCC-. - VCC-. V - Common-mode rejection ratio CMRR db - Power supply rejection ratio PSRR - - db RS= Output source current IOH ma VIN+=[V],VIN-=[V], VOUT=[V] Output sink current IOL - - ma VIN+=[V],VIN-=[V], VOUT=VCC Output voltage range Vo - VCC V RL=[k] Channel separation CS db f=[khz], Input referred (*) Current direction: Since first input stage is composed with PNP transistor, input bias current flows out of IC. /
3 BA9 family, BA9 family Absolute maximum rating (Ta=[]) Parameter Symbol BA9 family Rating BA9 family Unit Supply Voltage VCC-VEE +3 V Differential Input Voltage(*) Vid 3 V Input Common-mode voltage range Vicm (VEE-.3) to VEE+3 V Operating Temperature Topr - to + Storage Temperature Tstg - to + Maximum Junction Temperature Tjmax + Note: Absolute maximum rating item indicates the condition which must not be exceeded. Application of voltage in excess of absolute maximum rating or use out absoluted maximum rated temperature environment may cause deterioration of characteristics. (*) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more then VEE. Electrical characteristics Unless otherwise specified VCC=+[V], VEE=[V], Full range -[] to +[] Parameter Symbol Temperature Range BA9 family Guaranteed limit BA9 family Min. Typ. Max. Min. Typ. Max. Unit Condition Input offset voltage (*) Temperature coefficient of Input offset voltage Input offset current (*) Temperature coefficient of Input offset current Input bias current (*) VOUT=.[V] Vio mv Full range VCC= to 3[V],VOUT=.[V] Vio/T - - ±7 - - ±7 - μv/ VOUT=.[V] - - Iio na VOUT=.[V] Full range Iio/T - - ± - - ± - pa/ VOUT=.[V] - - Ib na VOUT=.[V] Full range Supply current ICC Full range ma RL=All Op-Amps High level output voltage VOH RL=[k] V Full range VCC=3[V],RL=[k] Low level output voltage VOL Full range - - mv RL=All Op-Amps Large signal voltage gain AV - - V/mV RL[k],VCC=[V] VOUT=. to.[v] Input common-mode voltage range Vicm - VCC-. - VCC-. V (VCC-VEE)=,VOUT=VEE+.[V] Common-mode rejection ratio CMRR - - db VOUT=.[V] Power supply rejection ratio PSRR - - db VCC= to 3[V] Output source current(*3) IOH Full range ma VIN+=[V],VIN-=[V], VOUT=[V] Only ch is short circuit Output sink current(*3) IOL - - Full range Isink - - μa 3/ ma VIN+=[V],VIN-=[V],VOUT=[V] Only ch is short circuit VIN+=[V],VIN-=[V], VOUT=[mV] Channel separation CS db f=[khz], Input referred Slew rate SR V/μs VCC=[V],AV=[V], RL=[k],CL=[pF] Maximum frequency ft MHz VCC=3[V],RL=[k], CL=[pF] Input referred noise voltage Vn nv/(hz) / VCC=[V],VEE=-[V], RS=[],Vi=[V], f=[khz] (*) Absolute value (*3) Under the high temperature environment, consider the power dissipation of IC when selecting the output current. When the terminal shot circuits are continuously output, the output current is reduced to climb to the temperature inside IC.
4 BA3 family Absolute maximum rating (Ta=[]) Parameter Symbol Rating Unit Supply Voltage VCC-VEE +3 V Differential Input Voltage(*) Vid 3 V Input Common-mode voltage range Vicm (VEE-.3) to VEE+3 V Operating Temperature Topr - to + Storage Temperature Tstg - to + Maximum junction Temperature Tjmax + Note: Absolute maximum rating item indicates the condition which must not be exceeded. Application of voltage in excess of absolute maximum rating or use out absoluted maximum rated temperature environment may cause deterioration of characteristics. (*) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more then VEE. Electrical characteristics Unless otherwise specified VCC=+[V], VEE=-[V], Ta=[] Parameter Symbol Temperature Guaranteed limit Range Min. Typ. Max. Unit Condition Input offset voltage (*) Vio - mv VOUT=[V], Vicm=[V] Input offset current (*) Iio - na VOUT=[V], Vicm=[V] Input bias current(*) Ib - 7 na VOUT=[V], Vicm=[V] Large signal voltage gain AV - db RL[k],VOUT=±[V],Vicm=[V] Maximum output voltage VOM ±3 ± - V RL[k] Input common-mode voltage range Vicm V VOUT=[V] Common-mode rejection ratio CMRR db VOUT=[V], Vicm=-[V] to +3[V] Power supply rejection ratio PSRR 9 - db Ri[k], VCC=+[V] to +3[V] Supply current ICC ma RL= All Op-Amps, VIN+=[V] Output source current Isource 3 - ma Output sink current Isink - ma VIN+=[V], VIN-=[V],VOUT=+[V], Only ch is short circuit VIN+=[V], VIN-=[V],VOUT=-[V], Only ch is short circuit Slew rate SR -. - V/μs AV=[dB], RL=[k],CL=[pF] Unity gain frequency ft -. - MHz RL=[k] Total harmonic distortion THD -. - % VOUT=[Vp-p], f=[khz]av=[db], RL=[k] (*) Absolute value /
5 BA3 family BA3 family. BA3 family BA3 family POWER DISSIPATION [mw]. BA3FV BA3F SUPPLY CURRENT [ma]..... SUPPLY CURRENT [ma] AMBIENT TEMPERTURE []. Fig. Derating curve. 3 3 Fig. Supply current - Supply voltage AMBIENT TEMPERATURE [] Fig.3 Supply current Ambient temperature 3 BA3 family BA3 family BA3 family 3-3 OUTPUT SOURCE CURRENT [ma] Fig. High level output voltage Supply voltage RL=[k] AMBIENT TEMPERATURE[] Fig. High level output voltage Ambient temperature (VCC=[V],RL=[k]) 3 Fig. Output source current Output voltage (VCC=[V]) BA3 family BA3 family BA3 family OUTPUT SOURCE CURRENT [ma] 3 OUTPUT SINK CURRENT [ma].. - OUTPUT SINK CURRENT [ma] AMBIENT TEMPERATURE [] Fig.7 Output source current Ambient temperature (VOUT=[V]) LOW LEVEL SINK CURRENT [A] 3 BA3 family Fig. Low level sink current Supply voltage (VOUT=.[V]) LOW LEVEL SINK CURRENT [A] Fig. Output sink current Output voltage (VCC=[V]) AMBIENT TEMPERATURE [] Fig. Low level sink current Ambient temperature (VOUT=.[V]) BA3 family INPUT OFFSET VOLTAGE [mv] AMBIENT TEMPERAURE [] Fig.9 Output sink current Ambient temperature (VOUT=VCC) BA3 family 3 3 Fig. Input offset voltage Supply voltage (Vicm=[V], VOUT=.[V]) (*) The above date is ability value of sample, it is not guaranteed. /
6 . BA3 family INPUT OFFSET VOLTAGE [mv] BA3 family 3 BA3 family - 3 BA3 family AMBIENT TEMPERATURE [] Fig.3 Input offset voltage Ambient temperature (Vicm=[V], VOUT=.[V]) 3 3 Fig. Input bias current Supply voltage (Vicm=[V], VOUT=.[V]) AMBIENT TEMPERATURE [] Fig. Input bias current Ambient temperature (Vicm=[V],VOUT=.[V]) 3 BA3 family INPUT OFFSET VOLTAGE [mv] BA3 family INPUT OFFSET CURRENT [na]. - - BA3 family Fig. Input bias current Ambient temperature (VCC=3[V],Vicm=[V],VOUT=.[V]) COMMON MODE INPUT VOLTAGE [V] Fig.7 Input offset voltage common-mode input voltage (VCC=[V]) Fig. Input offset current Supply voltage (Vicm=[V],VOUT=.[V]) INPUT OFFSET CURRENT [na]. - BA3 family LARGE SIGNAL VOLTAGE GAIN [db] BA3 family LARGE SIGNAL VOLTAGE GAIN [db] BA3 family Fig.9 Input offset current Ambient temperature (Vicm=[V],VOUT=.[V]) SUPPLY VOLTAGE[V] Fig. Large signal voltage gain Supply voltage RL[k] AMBIENT TEMPERATURE [] Fig. Large signal voltage gain Ambient temperature RL[k] COMMON MODE REJECTION RATIO [db]... - BA3 family 3 3 Fig. Common - mode rejection ratio Supply voltage COMMON MODE REJECTION RATIO [db]. BA3 family AMBIENT TEMPERATURE [] Fig.3 Common - mode rejection ratio - Ambient temperature POWER SUPPLY REJECTION RATIO [db] BA3 family AMBIENT TEMPERATURE [] Fig. Power supply rejection ratio - Ambient temperature (*) The above date is ability value of sample, it is not guaranteed. /
7 BA3A family BA3A family. BA3A family BA3A family POWER DISSIPATION [mw]. BA3AF BA3AFV SUPPLY CURRENT [ma]..... SUPPLY CURRENT [ma] AMBIENT TEMPERTURE []. Fig. Derating curve. 3 3 Fig. Supply current - Supply voltage AMBIENT TEMPERATURE [] Fig.3 Supply current Ambient temperature 3 BA3A family BA3A family BA3A family 3-3 OUTPUT SOURCE CURRENT [ma] Fig. Output voltage Supply voltage RL=[k] AMBIENT TEMPERATURE[] Fig. Output voltage Ambient temperature (VCC=[V],RL=[k]) 3 Fig. Output source current Output voltage (VCC=[V]) BA3A family BA3A family BA3A family OUTPUT SOURCE CURRENT [ma] 3 OUTPUT SINK CURRENT [ma].. - OUTPUT SINK CURRENT [ma] AMBIENT TEMPERATURE [] Fig.7 Output source current Ambient temperature (VOUT=[V]) Fig. Output sink current Output voltage (VCC=[V]) AMBIENT TEMPERATURE [] Fig.9 Output sink current Ambient temperature (VOUT=VCC) LOW LEVEL SINK CURRENT [A] 3 - BA3A family LOW LEVEL SINK CURRENT [A]. 3 BA3A family INPUT OFFSET VOLTAGE [mv] BA3A family 3 3 Fig. Low level sink current Supply voltage (VOUT=.[V]) AMBIENT TEMPERATURE [] Fig. Low level sink current Ambient temperature (VOUT=.[V]) Fig. Input offset voltage Supply voltage (Vicm=[V], VOUT=.[V]) (*) The above date is ability value of sample, it is not guaranteed. 7/
8 BA3A family. INPUT OFFSET VOLTAGE [mv] AMBIENT TEMPERATURE [] Fig.3 Input offset voltage Ambient temperature (Vicm=[V], VOUT=.[V]) BA3A family 3 BA3A family Fig. Input bias current Supply voltage (Vicm=[V], VOUT=.[V]) AMBIENT TEMPERATURE [] Fig. Input bias current Ambient temperature (Vicm=[V],VOUT=.[V]) BA3A family 3 BA3A family INPUT OFFSET VOLTAGE [mv] BA3A family - INPUT OFFSET CURRENT [na]. - - BA3A family Fig. Input bias current Ambient temperature (VCC=3[V],Vicm=[V],VOUT=.[V]) COMMON MODE INPUT VOLTAGE [V] Fig.7 Input offset voltage common-mode input voltage (VCC=[V]) Fig. Input offset current Supply voltage (Vicm=[V],VOUT=.[V]) BA3A family BA3A family BA3A family INPUT OFFSET CURRENT [na]. - LARGE SIGNAL VOLTAGE GAIN [db] LARGE SIGNAL VOLTAGE GAIN [db] Fig.9 Input offset current Ambient temperature (Vicm=[V],VOUT=.[V]) Fig. Large signal voltage gain Supply voltage RL[k] AMBIENT TEMPERATURE [] Fig. Large signal voltage gain Ambient temperature RL[k] COMMON MODE REJECTION RATIO [db]... - BA3A family 3 3 Fig. Common - mode rejection ratio Supply voltage COMMON MODE REJECTION RATIO [db]. BA3A family AMBIENT TEMPERATURE [] Fig.3 Common - mode rejection ratio - Ambient temperature POWER SUPPLY REJECTION RATIO [db] BA3A family AMBIENT TEMPERATURE [] Fig. Power supply rejection ratio - Ambient temperature (*) The above date is ability value of sample, it is not guaranteed. /
9 BA9 family BA9 family. BA9 family. BA9 family POWER DISSIPATION [mw]. BA9FVM BA9F BA9FV SUPPLY CURRENT [ma]..... SUPPLY CURRENT [ma] AMBIENT TEMPERTURE []. Fig. Derating curve. 3 Fig. Supply current - Supply voltage AMBIENT TEMPERATURE [] Fig.3 Supply current Ambient temperature BA9 family BA9 family BA9 family 3-3 OUTPUT SOURCE CURRENT [ma] 3-3 Fig. Output voltage Supply voltage RL=[k] AMBIENT TEMPERATURE[] Fig. Output voltage Ambient temperature (VCC=[V],RL=[k]) 3 Fig. Output source current Output voltage (VCC=[V]) BA9 family BA9 family BA9 family OUTPUT SOURCE CURRENT [ma] 3 OUTPUT SINK CURRENT [ma]. - OUTPUT SINK CURRENT [ma] AMBIENT TEMPERATURE [] Fig.7 Output source current Ambient temperature (VOUT=[V]) Fig. Output sink current Output voltage (VCC=[V]) AMBIENT TEMPERATURE [] Fig.9 Output sink current Ambient temperature (VOUT=VCC) LOW LEVEL SINK CURRENT [A] BA9 family LOW LEVEL SINK CURRENT [A]. 7 3 BA9 family INPUT OFFSET VOLTAGE [mv] BA9 family 3 3 Fig. Low level sink current Supply voltage (VOUT=.[V]) AMBIENT TEMPERATURE [] Fig. Low level sink current Ambient temperature (VOUT=.[V]) Fig. Input offset voltage Supply voltage (Vicm=[V], VOUT=.[V]) (*) The above date is ability value of sample, it is not guaranteed. 9/
10 . BA9 family INPUT OFFSET VOLTAGE [mv] BA9 family 3 - BA9 family 3 BA9 family AMBIENT TEMPERATURE [] Fig.3 Input offset voltage Ambient temperature (Vicm=[V], VOUT=.[V]) 3 3 Fig. Input bias current Supply voltage (Vicm=[V], VOUT=.[V]) AMBIENT TEMPERATURE [] Fig. Input bias current Ambient temperature (Vicm=[V],VOUT=.[V]) 3 BA9 family INPUT OFFSET VOLTAGE [mv] BA9 family INPUT OFFSET CURRENT [na]. - BA9 family Fig. Input bias current Ambient temperature (VCC=3[V],Vicm=[V],VOUT=.[V]) COMMON MODE INPUT VOLTAGE [V] Fig.7 Input offset voltage common-mode input voltage (VCC=[V]) Fig. Input offset current Supply voltage (Vicm=[V],VOUT=.[V]) BA9 family BA9 family BA9 family INPUT OFFSET CURRENT [na]. - LARGE SIGNAL VOLTAGE GAIN [db] LARGE SIGNAL VOLTAGE GAIN [db] Fig.9 Input offset current Ambient temperature (Vicm=[V],VOUT=.[V]) Fig. Large signal voltage gain Supply voltage RL[k] AMBIENT TEMPERATURE [] Fig. Large signal voltage gain Ambient temperature RL[k] COMMON MODE REJECTION RATIO [db]... - BA9 family 3 Fig. Common - mode rejection ratio Supply voltage COMMON MODE REJECTION RATIO [db]. BA9 family AMBIENT TEMPERATURE [] Fig.3 Common - mode rejection ratio - Ambient temperature POWER SUPPLY REJECTION RATIO [db] BA9 family AMBIENT TEMPERATURE [] Fig. Power supply rejection ratio - Ambient temperature (*) The above date is ability value of sample, it is not guaranteed. /
11 BA9 family BA9 family. BA9 family. BA9 family POWER DISSIPATION [mw]. BA9F BA9FV BA9KN SUPPLY CURRENT [ma] SUPPLY CURRENT [ma] AMBIENT TEMPERTURE []. Fig. Derating curve. 3 Fig. Supply current - Supply voltage AMBIENT TEMPERATURE [] Fig.3 Supply current Ambient temperature BA9 family BA9 family BA9 family 3-3 Fig. Output voltage Supply voltage RL=[k] AMBIENT TEMPERATURE[] Fig. Output voltage Ambient temperature (VCC=[V],RL=[k]) OUTPUT SOURCE CURRENT [ma] 3-3 Fig. Output source current Output voltage (VCC=[V]) BA9 family BA9 family BA9 family OUTPUT SOURCE CURRENT [ma] 3 OUTPUT SINK CURRENT [ma]. - OUTPUT SINK CURRENT [ma] AMBIENT TEMPERATURE [] Fig.7 Output source current Ambient temperature (VOUT=[V]) Fig. Output sink current Output voltage (VCC=[V]) AMBIENT TEMPERAURE [] Fig.9 Output sink current Ambient temperature (VOUT=VCC) LOW LEVEL SINK CURRENT [A] BA9 family 3 3 Fig. Low level sink current Supply voltage (VOUT=.[V]) LOW LEVEL SINK CURRENT [A] AMBIENT TEMPERATURE [] Fig. Low level sink current Ambient temperature (VOUT=.[V]) BA9 family INPUT OFFSET VOLTAGE [mv] BA9 family 3 3 Fig. Input offset voltage Supply voltage (Vicm=[V], VOUT=.[V]) (*) The above date is ability value of sample, it is not guaranteed. /
12 BA9 family BA9 family BA9 family BA9 family INPUT OFFSET VOLTAGE [mv] AMBIENT TEMPERATURE [] Fig.3 Input offset voltage Ambient temperature (Vicm=[V], VOUT=.[V]) 3 3 Fig. Input bias current Supply voltage (Vicm=[V], VOUT=.[V]) AMBIENT TEMPERATURE [] Fig. Input bias current Ambient temperature (Vicm=[V],VOUT=.[V]) BA9 family BA9 family BA9 family Fig. Input bias current Ambient temperature (VCC=3[V],Vicm=[V],VOUT=.[V]) INPUT OFFSET VOLTAGE [mv] COMMON MODE INPUT VOLTAGE [V] Fig.7 Input offset voltage Common-mode input voltage (VCC=[V]) INPUT OFFSET CURRENT [na] Fig. Input offset current Supply voltage (Vicm=[V],VOUT=.[V]) BA9 family BA9 family BA9 family INPUT OFFSET CURRENT [na]. - LARGE SIGNAL VOLTAGE GAIN [db] LARGE SIGNAL VOLTAGE GAIN [db] Fig.9 Input offset current Ambient temperature (Vicm=[V],VOUT=.[V]) Fig. Large signal voltage gain Supply voltage RL[k] AMBIENT TEMPERATURE [] Fig. Large signal voltage gain Ambient temperature RL[k] COMMON MODE REJECTION RATIO [db]... - BA9 family 3 Fig. Common - mode rejection ratio Supply voltage COMMON MODE REJECTION RATIO [db] BA9 family AMBIENT TEMPERATURE [] Fig.3 Common - mode rejection ratio - Ambient temperature POWER SUPPLY REJECTION RATIO [db] BA9 family AMBIENT TEMPERATURE [] Fig. Power supply rejection ratio - Ambient temperature (*) The above date is ability value of sample, it is not guaranteed. /
13 BA3 family BA3 family BA3 family BA3 family POWER DISSIPATION [mw]. BA3FVM BA3F SUPPLY CURRENT [ma]. 3 - SUPPLY CURRENT [ma] 3 ±.V ±.V ±.V 7 AMBIENT TEMPERTURE []. Fig. Derating curve 3 Fig. Supply current - Supply voltage AMBIENT TEMPERATURE [] Fig3. Supply current Ambient temperature BA3 family BA3 family BA3 family - - VOH VOL VOH VOL - - VOH VOL -. LOAD RESISTANCE [k] Fig. Output voltage Load resistance (VCC/VEE=+[V]/-[V],Ta=[]) - ± ± ± ± ± ± Fig. Output voltage Supply voltage -... OUTPUT CURRENT [ma] Fig. Output voltage Output current (VCC/VEE=+[V]/-[V],Ta=[]) BA3 family BA3 family BA3 family INPUT OFFSET VOLTGE [mv] INPUT OFFSET VOLTAGE [mv] - - ±.V ±.V ±.V. - - ± ± ± ± ± Fig.7 Input offset voltage Supply voltage (Vicm=[V], VOUT=[V]) Fig. Input offset voltage Ambient temperature (Vicm=[V], VOUT=[V]) ± ± ± ± ± Fig.9 Input bias current Supply voltage (Vicm=[V], VOUT=[V]) ±.V ±.V ±.V BA3 family INPUT OFFSET CURRENT [na] BA3 family INPUT OFFSET CURRENT [na] ±.V ±.V ±.V BA3 family Fig. Input bias current Ambient temperature (Vicm=[V], VOUT=[V]) - ± ± ± ± ± Fig. Input offset current Supply voltage (Vicm=[V], VOUT=[V]) Fig. Input offset current Ambient temperature (Vicm=[V], VOUT=[V]) (*) The above date is ability value of sample, it is not guaranteed. 3/
14 BA3 family INPUT OFFSET VOLTAGE [mv] LARGE SIGNAL VOLTAGE GAIN [db] BA3 family COMMON MODE INPUT VOLTAGE [V] Fig.3 Input offset voltage Common-mode input voltage (VCC/VEE=+.[V]/-.[V]) - BA3 family ± ± ± ± ± ± ± ± ± ± Fig. Large signal voltage gain Supply voltage (RL=[k]) COMMON MODE REJECTION RATIO[dB] LARGE SIGNAL VOLTAGE GAIN [db]. 7 7 BA3 family Fig. Common-mode rejection ratio Ambient temperature (VCC/VEE=+[V]/-[V]) ±.V ±.V ±.V BA3 family Fig.7 Large signal voltage gain Ambient temperature (RL=[K]) POWER SUPPLY REJECTION RATIO [db] GAIN [db] 7 3 BA3 family Fig. Power supply rejection ratio Ambient temperature (VCC/VEE=+[V]/-[V]) Gain Phase.E+.E+3.E+.E+.E+.E+7 FREQUENCY [Hz] Fig. Gain - Frequency (VCC=±) BA3 family PHASE [deg]. BA3 family. BA3 family BA3 family SLEW RATE [V/us] SLEW RATE [V/us] ±. ±.V ±.V TOTAL HARMONIC DISTORTION [%].. Hz khz khz EQUIVALENT INPUT NOISE VOLTAGE [nv/hz].. ± ± ± ± ± ± SUPPLY VOLTAGE[V] Fig.9 Slew rate Supply voltage BA3 family FREQUENCY [Hz] Fig. Equivalent input noise voltage - Frequency (VCC/VEE=+[V]/-[V],Rs=[],Ta=[]) AMBIENT TEMPERATURE [] Fig. Slew rate Ambient temperature... OUTPUT VOLTAGE [Vrms] Fig. Total harmonic distortion Output voltage VCC/VEE=+[V]/-[V],Av=[dB], RL[k],[kHz]-LPF,Ta=[] (*) The above date is ability value of sample, it is not guaranteed. /
15 Schematic diagram VCC VCC IN IN VOUT IN IN VOUT VEE VEE BA3/BA3A/BA9/BA9 simplified schematic BA3 simplified schematic Test circuit NULL method VCC,VEE,EK,Vicm,Unit :[V] Parameter VF S S S3 Fig. Simplified schematic (each Op-Amp) BA3/BA3 family BA9/BA9 family BA3 family Vcc VEE EK Vicm Vcc VEE EK Vicm VCC VEE EK Vicm Input offset voltage VF ON ON OFF Input offset current VF OFF OFF OFF Calculation Input bias current VF3 OFF ON VF ON OFF OFF Large signal voltage gain Common-mode rejection ratio (Input common-mode voltage range) Power supply rejection ratio VF ON ON ON VF VF ON ON OFF VF VF ON ON OFF VF Calculation. Input offset Voltage (Vio) Vio = VF + Rf / Rs [V]. Input offset current (Iio) C.[μF] Iio = VFVF Ri ( + Rf / Rs) 3. Input bias current (Ib) Ib = VFVF3 Ri ( + Rf / Rs) [A]. Large signal voltage gain (Av) Av = Log [A] EK (+Rf /Rs) VF-VF [db] Vicm Rs [] [] Rs S Ri [k] [k] Ri S VCC DUT VEE S3 RL Rf [k] EK RK [k] RK [k] C3 [pf] C.[μF] +[V] NULL -[V] VF. Common-mode rejection ratio (CMRR) CMRR = Log Vicm (+Rf/Rs) VF-VF7 [db] Fig. Test circuit (each Op-Amp). Power supply rejection ratio (PSRR) PSRR = Log Vcc (+Rf/Rs) VF-VF9 [db] /
16 Test circuit switch condition Unit: [V] No Supply current High level output voltage Low level output voltage Output source current Output sink current Slew rate Gain bandwidth product Input noise voltage OFF OFF OFF ON OFF ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON OFF OFF ON OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON OFF OFF ON OFF OFF OFF OFF OFF OFF ON OFF OFF OFF ON OFF OFF ON OFF OFF OFF OFF OFF OFF OFF ON OFF OFF ON OFF OFF ON OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF ON OFF OFF OFF ON ON ON OFF OFF OFF OFF OFF ON OFF OFF ON ON OFF OFF ON ON OFF OFF OFF OFF ON OFF OFF OFF ON ON OFF OFF OFF OFF ON OFF OFF OFF R VH VCC VL 3 RS R 7 VIN- VIN+ VEE 9 RL CL 3 VH VOUT VL t Fig3. Test circuit (each Op-Amp) Fig. Slew rate input output wave Test circuit3 Channel separation VCC VCC R//R R//R OTHER CH VEE VEE VIN R R V VOUT =.[Vrms] R R V VOUT CSlog VOUT VOUT Fig. Test circuit3 /
17 Description of electrical characteristics Described here are the terms of electric characteristics used in this technical note. Items and symbols used are also shown. Note that item name and symbol and their meaning may differ from those on another manufacture s document or general document.. Absolute maximum ratings Absolute maximum rating item indicates the condition which must not be exceeded. Application of voltage in excess of absolute maximum rating or use out of absolute maximum rated temperature environment may cause deterioration of characteristics.. Power supply voltage VCCVEE Indicates the maximum voltage that can be applied between the positive power supply terminal and negative power supply terminal without deterioration or destruction of characteristics of internal circuit.. Differential input voltage Vid Indicates the maximum voltage that can be applied between non-inverting terminal and inverting terminal without deterioration and destruction of characteristics of IC..3 Input common-mode voltage range Vicm Indicates the maximum voltage that can be applied to non-inverting terminal and inverting terminal without deterioration or destruction of characteristics. Input common-mode voltage range of the maximum ratings not assure normal operation of IC. When normal Operation of IC is desired, the input common-mode voltage of characteristics item must be followed.. Operating temperature range and storage temperature range Topr, Tstg Operating temperature range indicates the temperature range where IC can operate. The higher the ambient temperature becomes, the lower is the power consumed by IC. Storage temperature range where IC can be stored without excessive deterioration of characteristics of IC.. Power dissipation Pd Indicates the power that can be consumed by specified mounted board at the ambient temperature (normal temperature). As for package product, Pd is determined by the temperature that can be permitted by IC chip in the packagemaximum junction temperature and thermal resistance of the package. Electrical characteristics item. Input offset voltage Vio Indicates the voltage difference between non-inverting terminal and inverting terminal. It can be translated into the input voltage difference required for setting the output voltage at [V]. Input offset voltage drift Vio/T Indicates the ratio of input offset voltage fluctuation against ambient temperature fluctuation..3 Input offset current Iio Indicates the difference of input bias current between non-inverting terminal and inverting terminal.. Input offset current drift Iio/T Indicates the difference of input bias current between non-inverting terminal and inverting terminal.. Input bias current Ib Indicates the current that flows into or out of the input terminal. It is defined by the average of input bias current at non-inverting terminal and input bias current at inverting terminal.. Circuit current ICC Indicates the IC current that flows under specified conditions and no-load steady status..7 High level output voltage / Low level output voltagevoh/vol Indicates the voltage range that can be output by the IC under specified load condition. It is typically divided into high-level output voltage and low-level output voltage. High-level output voltage indicates the upper limit of output voltage. Low-level output voltage indicates the lower limit.. Large signal voltage gain AV Indicates the amplifying rate (gain) of output voltage against the voltage difference between non-inverting terminal and inverting terminal. It is normally the amplifying rate (gain) with reference to DC voltage. Av = (Output voltage fluctuation) / (Input offset fluctuation).9 Input common-mode voltage range Vicm Indicates the input voltage range where IC operates normally.. Common-mode rejection ratio CMRR Indicates the ratio of fluctuation of input offset voltage when in-phase input voltage is changed. It is normally the fluctuation of DC. CMRR Change of Input common-mode voltage/input offset fluctuation. Power supply rejection ratio PSRR Indicates the ratio of fluctuation of input offset voltage when supply voltage is changed. It is normally the fluctuation of DC. PSRRChange of power supply voltage/input offset fluctuation. Output source current / Output sink current IOH/IOL Indicates the maximum current that can be output under specified output condition (such as output voltage and load condition). It is divided into output source current and output sink current. Output source current indicates the current flowing out of IC, and output sink current flowing into IC..3 Channel separationcs Indicates the fluctuation of input offset voltage or that of output voltage with reference to the change of output voltage of driven channel.. Slew rate SR Indicates the time fluctuation ratio of voltage output when step input signal is applied. Gain band width product GBW Indicates the product of specified signal frequency and the gain of Op Amp at such frequency. it gives the approximate value of frequency where the gain of Op Amp is (maximum frequency, and unity gain frequency). 7/
18 Derating curve Power dissipation (total loss) indicates the power that can be consumed by IC at Ta=(normal temperature).ic is heated when it consumed power, and the temperature of IC ship becomes higher than ambient temperature. The temperature that can be accepted by IC chip depends on circuit configuration, manufacturing process, and consumable power is limited. Power dissipation is determined by the temperature allowed in IC chip (maximum junction temperature) and thermal resistance of package (heat dissipation capability). The maximum junction temperature is typically equal to the maximum value in the storage temperature range. Heat generated by consumed power of IC radiates from the mold resin or lead frame of the package. The parameter which indicates this heat dissipation capability (hardness of heat release) is called thermal resistance, represented by the symbol j-a[/w]. The temperature of IC inside the package can be estimated by this thermal resistance. Fig. (a) shows the model of thermal resistance of the package. Thermal resistance ja, ambient temperature Ta, junction temperature Tj, and power dissipation Pd can be calculated by the equation below : ja (TjTa) / Pd [/W] Derating curve in Fig. (b) indicates power that can be consumed by IC with reference to ambient temperature. Power that can be consumed by IC with reference to ambient temperature. Power that can be consumed by IC begins to attenuate at certain ambient temperature. This gradient, is determined by thermal resistance ja. Thermal resistance ja depends on chip size, power consumption, package, ambient temperature, package condition, wind velocity, etc even when the same of package is used. Thermal reduction curve indicates a reference value measured at a specified condition. Fig.7(a)-(d) show a derating curve for an example of BA3, BA3A, BA9, and BA9. Power dissipation of LSI [W] Pd (max) ja = ( Tj Ta ) / Pd [/W] P ja < ja Ambient temperature Ta [] P ' ja ja ' ja ja Tj ' (max) Tj (max) Chip surface temperature Tj [] 7 Ambient temperature Ta [] (a) Thermal resistance (b) Derating curve Fig. Thermal resistance and derating curve Power DissipationPd [mw] mw (*) mw (*) BA3F BA3FV Power DissipationPd [mw] 7mW (*3) 9mW (*) BA3AFV BA3AF 7 Ambient temperatureta[] 7 Ambient temperatureta[] Power DissipationPd [mw] 7mW( *) 9mW( *) 9mW (*7) BA9F BA3F BA9FV BA9FVM BA3FVM BA3F BA3FVM Power DissipationPd [mw] 7mW( *) mw( *9) mw (*) BA9FV BA9KN BA9F 7 Ambient temperatureta[] 7 Ambient temperatureta[] * * *3 * * * *7 * *9 * Unit [mw/] When using the unit above Ta=[], subtract the value above per degree[]. Permissible dissipation is the value when FR glass epoxy board 7[mm]7[mm].[mm] (cooper foil area below 3[]) is mounted. Fig. Derating curve /
19 Cautions on use ) Processing of unused circuit It is recommended to apply connection (see the Fig.9) and set the noninverting input terminal at the potential within input common-mode voltage range (Vicm), for any unused circuit. ) Input voltage Applying VEE+3[V](BA9/BA9 family) and VEE+3[V](BA3 family) to the input terminal is possible without causing deterioration of the electrical characteristics or destruction, irrespective of the supply voltage. However, this does not ensure normal circuit operation. Please note that the circuit operates normally only when the input voltage is within the common mode input voltage range of the electric characteristics. To the potential within Vicm Fig. Example of processing unused circuit 3) Power supply (split supply / single supply) in used Op amp operates when specified voltage is applied between VCC and VEE. Therefore, the single supply Op Amp can be used for split supply Op Amp as well. ) Power dissipation (Pd) Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) in actual operating conditions. ) Short-circuit between pins and wrong mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. ) Use in strong electromagnetic field Using the ICs in strong electromagnetic field can cause operation malfunction. 7) Radiation This IC is not designed to be radiation-resistant. ) Handing of IC When stress is applied to IC because of deflection or bend of board, the characteristics may fluctuate due to piezoelectric (piezo) effect. 9) Output stage operation The output stage of the IC is configured using class C push pull circuits. Therefore, when the load resister is connect to the middle potential of VCC and VEE, crossover distortion occurs at the change over between discharging and charging of output current. Connecting a resister between the output terminal and VEE, and increasing the bias current for class A operation will suppress cross over distortion. ) Inspection on set board During testing, turn on or off the power before mounting or dismounting the board from the test Jig. Do not power up the board without waiting for the output capacitors to discharge. The capacitors in the low output impedance terminal can stress the device. Pay attention to the electro static voltages during IC handling, transportation, and storage. ) Output capacitor When VCC terminal is shorted to VEE (GND) potential and an electric charge has accumulated on the external capacitor, connected to output terminal, accumulated charge may be discharged VCC terminal via the parasitic element within the circuit or terminal protection element. The element in the circuit may be damaged (thermal destruction). When using this IC for an application circuit where there is oscillation, output capacitor load does not occur, as when using this IC as a voltage comparator. Set the capacitor connected to output terminal below.[μf] in order to prevent damage to IC. 9/
20 Dimensions SOP SOP SSOP-B SOP-B MSOP VQFN Model number construction Specify the product by the model number when placing an order. Make sure of the combinations of items. Start with the leftmost space without leaving any empty space between characters. B A 3 F - E Packing specification reference ROHM product name Package type E Embossed tape on reel with pin near far when pulled out BA3 F : SOP/SOP TR Embossed tape on reel with pin near far when pulled out BA3A BA9 BA9 FV : SSOP-B/SSOP-B FVM : MSOP KN : VQFN BA3 Package Packing specification name Quantity Embossed carrier tape SOP/ SSOP-B/ SOP/ SSOP-B E Pin Direction of feed Reel MSOP TR 3 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Reel Pin Direction of feed VQFN E Reel pin Direction of feed /
21 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System THE AMERICAS / EUPOPE / ASIA / JAPAN Contact us : webmaster@ rohm.co.jp Copyright 7 ROHM CO.,LTD., Saiin Mizosaki-cho, Ukyo-ku, Kyoto -, Japan TEL : FAX : Appendix-Rev.
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