LM2904 LOW POWER DUAL OPERATIONAL AMPLIFIER + -

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Dorothy Owens
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1 LOW POWE DUAL OPEATIONAL AMPLIFIE INTENALLY FEQUENCY COMPENSATED LAGE DC VOLTAGE GAIN : db WIDE BANDWIDTH (unity gain):.mhz (temperature compensated) VEY LOW SUPPLY CUENT/OP (5µA) ESSENTIALLY INDEPENDENT OF SUPPLY VOLTAGE LOW INPUT BIAS CUENT: na (temperature compensated) LOW INPUT OFFSET CUENT: na INPUT COMMONMODE VOLTAGE ANGE INCLUDES GOUND DIFFEENTIAL INPUT VOLTAGE ANGE EQUAL TO THE POWE SUPPLY VOLTAGE LAGE OUTPUT VOLTAGE SWING V TO (V CC.5V) DESCIPTION This circuit consists of two independent, high gain, internally frequency compensated which were designed specifically for automotive and industrial control system. It operates from a single power supply over a wide range of voltages. The low power supply drain is independent of the magnitude of the power supply voltage. Application areas include transducer amplifiers, dc gain blocks and all the conventional opamp circuits which now can be more easily implemented in single power supply ssystems. For example, these circuits can be directly supplied with off the standard +5V which is used in logic systems and will easily provide the required interface electronics without requiring any additional power supply. In the linear mode the input commonmode voltage range includes ground and the output voltage can also swing to groung, even though operated from only a single power supply voltage. ODE CODE Part Number Temperature ange Package N D P S 4 C, +5 C N=Dual in Line Package (DIP) D=Small Outline Package (SO) also available in Tape & eel (DT) P=Thin Shrink Small Outline Package (TSSOP) only available in Tape & eel (PT) S=MiniSO Package (MiniSO) only available in Tape & eel (ST) N DIP8 (Plastic Package) D SO8 (Plastic Micropackage) P TSSOP8 (Thin Shrink Small Outline Package) S MiniSO8 (MiniSO Package) PIN CONNECTIONS (top view) January /

2 SCHEMATIC DIAGAM ( ) V CC 6µA 4µA µa Q5 C C Q6 Inverting input Q Q Q3 Q4 Q7 SC Noninverting input Q Output Q3 Q Q Q8 Q9 5mA GND ABSOLUTE MAXIMUM ATINGS Symbol Parameter Value Unit V CC Supply Voltage +3 V V id Differential Input Voltage +3 V V I Input Voltage.3 to +3 V Output Shortcircuit to Ground ) p tot Power Dissipation ) 5 mw I in Input Current 3) 5 ma T oper Operating FreeAir Temperature ange 4 to +5 C T stg Storage Temperature ange 65 to +5 C. Shortcircuits from the output to V cc can cause excessive heating if Vcc + > 5V. The maximum output current is approximately 4mA, independent of the magnitude of V cc. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers.. Power dissipation must be considered to ensure maximum junction temperature (Tj) is not exceeded. 3. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collectorbase junction of the input PNP transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the OpAmps to go to the V CC voltage level (or to ground for a large overdrive) for the time duration than an input is driven negative. This is not destructive and normal output will set up again for input voltage higher than.3v. /

3 ELECTICAL CHAACTEISTICS V CC + = 5V, V cc = Ground, V O =.4V, T amb =5 C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit Input Offset Voltage ) V io T amb =5 C 7 T min T amb T max. 9 I io Input Offset Current T amb =5 C 3 T min T amb T max. 4 Input Bias Current ) I ib T amb =5 C 5 T min T amb T max. A vd SV I cc Large Signal Voltage Gain V + CC = +5V, L =kω, V o =.4V to.4v T amb =5 C 5 T min T amb T max. 5 Supply Voltage ejection atio ( S kω) T amb =5 C 65 T min T amb T max. 65 Supply Current, all Amp, no load T amb =5 C V CC =+5V T min T amb T max. V CC = +3V Input Common Mode Voltage ange (V cc = +3V) 3) V icm T amb = 5 C T min T amb T max. CM I source I sink V OPP V OH Commonmode ejection atio ( S = kω) T amb =5 C 7 T min T amb T max. 6 mv na na V/mV db.7. V CC +.5 V CC + ma V 85 db Output Shortcircuit Current V CC = +5V, V o = +V, V id = +V 4 6 ma Output Sink Current V O =V V CC = +5V V O = +.V V CC = +5V Output Voltage Swing ( L = kω T amb = 5 C T min T amb T max High Level Output Voltage (V cc + 3V) T amb = +5 C L = kω T min T amb T max. T amb = +5 C L = kω T min T amb T max V CC +.5 V CC + ma µa V V V OL S GBP Low Level Output Voltage ( L = kω) T amb = +5 C 5 T min T amb T max Slew ate V cc = 5V, Vi =.5 to 3V, L = kω, C L = pf, unity gain.3.6 Gain Bandwidth Product f = khz V cc = 3V,V in = mv, L = kω, C L = pf.7. mv V/µs MHz 3/

4 Symbol Parameter Min. Typ. Max. Unit THD Total Harmonic Distortion f = khz, A V = db, L =kω,v o = Vpp, % C L = pf, V cc = 3V. DV io Input Offset Voltage Drift 7 3 µv/ C DI io Input Offset Current Drift 3 pa/ C V O /V Channel Separation 4) O khz f khz db. V O =.4V, S =Ω,5V<V + CC < 3V, V < V ic <V + CC.5V. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output, so no loading charge change exists on the input lines 3. The input commonmode voltage of either input signal voltage should not be allowed to go negative by more than.3v. The upper end of the commonmode voltage range is V + CC.5V, but either or both inputs can go to +3V without damage. 4. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequences. OPEN LOOP FEQUENCY ESPONSE (NOTE 3) 4 MΩ.µF 8 VI VCC/ + V CC VO VCC =3V& C VCC = + to + 5V & Tamb +5 C 55 C Tamb +5 C. k k k M M FEQUENCY (Hz) VOLTAGE GAIN (db) OUTPUT VOLTAGE (V) INPUT VOLTAGE (V) VOLAGE FOLLOWE PULSE ESPONSE 4 L kω 3 VCC = +5V TIME (µs) OUTPUT SWING (Vpp) LAGE SIGNAL FEQUENCY ESPONSE k Ω kω +5V 5 V I VO +7V + kω 5 k k k M FEQUENCY (Hz) OUTPUT VOLTAGE (V).. OUTPUT CHAACTEISTICS VCC = +5V VCC = +5V VCC = +3V v cc /,,, OUTPUT SINK CUENT (µ A) + v cc Tamb =+5 C I O VO 4/

5 OUTPUT VOLTAGE (mv) VOLTAGE FOLLOWE PULSSE ESPONSE (SMALL SIGNAL) el + Output Input 3 T amb = +5 C V CC =3V TIME (µs) eo 5pF INPUT VOLTAGE (V) INPUT VOLTAGE ANGE 5 NØga tive 5 Positive 5 5 POWE SUP PLYVOLTAGE ( V) OUTPUT VOLTAGE EFEENCED TO V CC + (V) OUTPUT CHAACTEISTICS 8 V CC 7 6 VCC / + V O 5 4 I O Independent ofv CC 3 T amb =+5 C,,, OUTPUT SOUCE CUENT (ma) SUPPLY CUENT (ma) SUP PLYCUENT 4 V CC ma ID 3 + Tamb = Cto+5 C Tamb =55 C 3 POSITIVE SUPPLYVOLTAGE (V) INPUT CUENT (ma) INPUT CUENT (Note ) VI =V V CC =+3V VCC =+5V VCC =+5V VOLTAGE GAIN (db) L = kω L= kω TEMPEATUE ( C) 3 4 POSITIVE SUPPLY VOLTAGE (V) 9 CUENT LIMITING (Note ) OUTPUT CUENT (ma) I O INPUT CUENT (na) T = +5 C amb TEMPEATUE ( C) 3 POSITIVE S UPPLY VOLTAGE (V) 5/

6 6 L = k Ω TYPICAL SINGLE SUPPLY APPLICATIONS AC COUPLED INVETING AMPLIFIE VOLTAGE GAIN (db) 8 4 L = kω C I kω f C o f A = V (as shown A V = ) eo V PP 3 POSITIVE SUPPLY VOLTAGE (V) e I ~ V CC 6.kΩ B 3 kω L GAIN BANDWIDTH PODUCT (MHz) POWE SUPPLY EJECTION ATIO (db) V = 5V CC TEMPEATUE ( C) 5 5 SV TEMPEATUE ( C) C µf AC COUPLED NONINVETING AMPLIFIE C.µF e I ~ C I 3 MΩ C µf MΩ 6.kΩ B 4 5 V CC NONINVETING DC GAIN A = + V (as shown A V = ) C o V PP e o k Ω L COMMON MODE EJECTION ATIO (db) TEMPEATUE ( C) kω kω MΩ e O +5V e O (V) A V =+ (As shown = ) A V e I (mv) 6/

7 DC SUMMING AMPLIFIE HIGH INPUT Z ADJUSTABLE GAIN DC INSTUMENTATION AMPLIFIE e e e 3 e O e kω Gain adjust e O e 4 e 6 7 eo = e + e e3 e4 where (e + e) (e3 + e4) to keep eo V If = 5 and 3 = 4 = 6 = 7 eo = [ + ] (e e) As shown eo = (e e) HIGH INPUT Z, DC DIFFEENTIAL AMPLIFIE LOW DIFT PEAK DETECTO + V +V 3 If = 5 and 3 = 4 = 6 = 7 eo = [ + ] (e e) As shown eo = (e e) 4 V o e I Z I µ F M Ω C N MΩ Z o.µ F e o Input current compensation USING SYMMETICAL AMPLIFIES TO EDUCE INPUT CUENT ACTIVE BADPASS FILTE e I IB.5MΩ I I N 99 3MΩ.µ F e o Input current compensation +V 3 4 MΩ C 33pF Fo = khz Q=5 Av = (4dB) 6 47kΩ 8 C 33pF C3 µf 5 47kΩ 7 V o V CC 7/

8 PACKAGE MECHANICAL DATA 8 PINS PLASTIC DIP Millimeters Inches Dimensions Min. Typ. Max. Min. Typ. Max. A a.5. B b b D.9.43 E e.54. e e F i 5.8. L Z.5.6 8/

9 PACKAGE MECHANICAL DATA 8 PINS PLASTIC MICOPACKAGE (SO) L C c a a3 A b s a b e3 E D M 8 5 F 4 Millimeters Inches Dimensions Min. Typ. Max. Min. Typ. Max. A a a a b b C c 45 (typ.) D E e.7.5 e F L M.6.4 S 8 (max.) 9/

10 PACKAGE MECHANICAL DATA 8 PINS THIN SHINK SMALL OUTLINE PACKAGE (TSSOP) k c.5mm. inch GAGE PLANE L C L L L E SEATING PLANE A A A E D b e PIN IDENTIFICATION Millimeters Inches Dimensions Min. Typ. Max. Min. Typ. Max. A..5 A A b c D E E e.65.5 k 8 8 l L L..39 /

11 PACKAGE MECHANICAL DATA 8 PINS PLASTIC MICOPACKAGE (miniso) k c,5mm.inch GA GEPLANE SEA TING PLANE C A E A A b C D E L L 5 4 ccc 8 e PINIDENTIFICA TION Millimeters Inches Dimensions Min. Typ. Max. Min. Typ. Max. A..43 A A b c D E E e.65.6 L L k d 3d 6d d 3d 6d aaa..4 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infring ement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics STMicroelectronics Printed in Italy All ights eserved STMicroelectronics GOUP OF COMPANIES Australia Brazil Canada China Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States st.com /

LM158,A-LM258,A LM358,A

LM158,A-LM258,A LM358,A ,A-LM258,A LM358,A LOW POWER DUAL OPERATIONAL AMPLIFIERS INTERNALLY FREQUENCY COMPENSATED LARGE DC VOLTAGE GAIN: 1dB WIDE BANDWIDTH (unity gain): 1.1MHz (temperature compensated) VERY LOW SUPPLY CURRENT/OP