Low power quad operational amplifiers Features Wide gain bandwidth:.mhz typ. Input common-mode voltage range includes ground Large voltage gain:db typ. Very low supply current per amplifier:ua typ. Low input bias current: na typ. Low input offset current: na typ. Wide power supply range: - Single supply: +V to +V - Dual supplies: ±.V to ±V Internal ESD protection: Human body model (HBM) ±V typ. Input Offset Voltage Grade NJM4C( Normal-Grade ) NJM4CA( A Grade ) 7mV max. at Ta= 9mV max. at Ta= to 7.mV max. at Ta= 4mV max. at Ta= to 7 NJM4CG NJM4CAG ( SOP4 ) NJM4CV NJM4CAV (SSOP4) Description The NJM4C / NJM4CA consist of four independent, high gain, internally frequency-compensated operational amplifiers. They operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage.. Pin and schematic diagram Figure. Pin connections (top view) Output 4 4 Output 4 Inverting Input Inverting Input 4 Non-inverting Input Non-inverting Input 4 V CC + 4 V CC - Non-inverting Input Non-inverting Input Inverting Input Output 6 9 7 8 Inverting Input Output - -
Figure. Schematic diagram (/4 NJM4C / NJM4CA) Vcc + V CC 6μA C C 4μA μa Q Q6 Inverting inverting Input Input Non-Inverting non-inverting Input Input Q Q Q Q4 Q Q Q7 Q R SC Output Output Q Q8 Q9 μa GND Vcc - Absolute maximum ratings Table. Absolute maximum ratings (Tamb= C) Symbol Parameter Value Unit V CC Supply voltage (V CC + - V CC - ) V V IN Input voltage () Vcc - -. to Vcc - + V V o Output Terminal Input Voltage Vcc - -. to Vcc + +. V V ID Differential input voltage ± V I IN Input current () :Vin driven negative Input current () :Vin driven positive above AMR value ma in DC or ma in AC (duty cycle = %, T=s) T stg Storage temperature range -6 to + C T j Maximum junction temperature C SOP4 P D Power Dissipation SSOP4 (4) SOP4 θja Thermal resistance junction to ambient SSOP4 (4) SOP4 ψjt Thermal resistance junction to top surface of IC package SSOP4.4 ma : 88 () (6) : () (6) 64 mw : 4 () (6) : 4 () (6) 9 C /W : : 4 ( ) 49 ( ) (6) (6) 47 C /W. Input voltage is the voltage should be allowed to apply to the input terminal independent of the magnitude of V CC +. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-vase junction of the input PNP transistor becoming forward-biased and thereby acting as input diode clamp. In addition to this diode action, there is NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-amps to go to the V CC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative.. The junction base/substrate of the input PNP transistor polarized in reverse must be protected by a resistor in series with the inputs to limit the input current to 4uA max (R= (Vin-V)/4uA). 4. Short-circuit can cause excessive heating and destructive dissipation. Values are typical.. EIA/JEDEC STANDARD Test board (76. x 4. x.6mm, layers, FR-4) mounting 6. EIA/JEDEC STANDARD Test board (76. x 4. x.6mm, 4layers, FR-4) mounting - -
. Operating conditions Table. Operating conditions (Tamb= C) Symbol Parameter Value Unit V CC Supply voltage (V CC + - V CC - ) to V T oper Operating free-air temperature range -4 to +8 C Electrical characteristics Table. V CC + = +V, V CC - = V, T amb = + C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit V io I io I ib A vd SVR I CC V icm CMR I source Input offset voltage () T amb = -. 7 Input offset current () NJM4CA.. - - 9 NJM4CA 4 T amb = - () - - Input bias current () T amb = - () Large signal voltage gain (V CC + = +V, RL=kΩ, Vo=.4V to.4v) - - T amb = - () Supply voltage rejection ratio (Rs<kΩ,V CC + = V to V) - - T amb = 6 - () Supply current, all amp, no load T amb = 6 - - V CC + = V -. V CC + = V -.7 () V CC + = V - - V CC + = V - - Input common mode voltage range () (VCC + = +V) T amb = - V CC + -. () Common mode rejection ratio (R S < kω) - V CC + - T amb = 7 - () Output current source 6 - - V CC + = V, V O = +V, V id = +V 4 - mv na na V/mV db ma V db ma - -
Table4. V CC + = +V, V CC - = V, T amb = + C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit I sink V OH V OL SR GBP THD e n Output sink current V CC + = V, V o = +V, V id = -V - ma V CC + = V, V o = +.V, V id = -V - ua High level output voltage T amb = V CC + = V, RL = kω 6 7 - V CC + = V,RL = kω 7 8 - V CC + = V, RL = kω. - - () V CC + = V, RL = kω 6 - - V CC + = V,RL = kω 7 - - V CC + = V, RL = kω - - Low level output voltage (RL = kω) T amb = - Slew rate () V CC + = V, V i=. to V, R L = kω, C L = pf, unity gain Gain bandwidth product V CC + = V, f = khz, V in=mv, R L = kω, C L = pf Total harmonic distortion f = khz, A V=dB, R L = kω, V O = V pp, C L = pf, V CC + = V Equivalent input noise voltage f = khz, R S=Ω, V CC + = V DV io Input offset voltage drift DI io Input offset current drift () () - - V mv -.6 - V/µs -. - MHz -. - % - - nv/ Hz - 7 µv/ C - pa/ C V O/V O Channel separation (4) - - db khz < f < khz. V O =.4V, R S=Ω, V < V CC + < V, < V ic < V CC + -.V.. The direction of the input current is out of the IC.. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than.v. The upper end of the common-mode voltage range is V CC + -.V, but either or both inputs can go to +V without damage. 4. Due to the proximity of the external components, ensure that stray capacitance between these external parts dose not cause coupling. Coupling can be detected because this type of capacitance increases at higher frequencies.. This parameter is not % test. - 4 -
TYPICAL CHARACTERISTICS 6 Gain/Phase vs. Frequency V + =V, G V =4dB, R L =kω to V -, C L =pf Maximum Output Voltage Swing vs. Frequency V CC + =V, Ta= C Voltage Gain [db] Gain 4 Ta= C Phase Ta=8 C - -6-4 Ta= C - Ta=8 C -6-8 k k M M Frequency [Hz] Phase [deg] Maximum Output Voltage Swing VOPP [VPP] k k k M Frequency [Hz] Pulse Response V CC + =V, R L =kω, C L =pf, Ta= C Small signal Pulse Response V CC + =V, G V =db, C L =pf, Ta= C Voltage [V/div] V IN V OUT Input/Output Voltage [mv] 4 4 Output Input Time [μs/div] Time [μs/div] Maximum Output Voltage vs. Load Resistance V CC+ =V, R L to V CC - Maximum Output Voltage vs. Load Resistance V CC+ =V, R L to V CC - Ta=8 C Maximum Output Voltage [V] Ta= C Ta=8 C Ta=-4, ºC, 8ºC Maximum Output Voltage [V] 4 Ta= C Ta=-4, ºC, 8ºC k k k Load Resistance [Ω] k k k Load Resistance [Ω] - -
TYPICAL CHARACTERISTICS. Maximum Output Voltage vs. Load Resistance V CC+ =V, R L to V CC - Maximum Output Voltage vs. Output Current V CC+ /V CC- =±V Maximum Output Voltage [V]..... Ta=8 C Ta= C Ta=-4, ºC, 8ºC Maximum Output Voltage [V] - - Isource Isink Ta= C Ta=8 C Ta=8 C Ta= C k k k Load Resistance [Ω] - k Output Current [ma] Output Voltage vs. Output Sink Current V CC + =V, Ta=ºC Input Voltage Range vs. Supply Voltage Ta= C Output Voltage [V]. Input Voltage [V] Negative Positive. k k k Output Sink Current[μA] ± ± ± Supply VoltageV CC + /V CC - [V]. Supply Current vs. Supply Voltage G V =db. Supply Current vs. Temperature G V =db Supply Current [ma]..... Ta=ºC Ta=8ºC Ta=-4ºC Supply Current [ma]..... V CC + =V V CC + =V V CC + =V. 4 8 6 4 8 Supply Voltage V CC + [V]. - - 7 Ambient Temperature [ C] - 6 -
TYPICAL CHARACTERISTICS Input Offset Voltage vs. Supply Voltage V CM =V CC + / Input Offset Voltage vs. Temperature V CM =V CC + / Input Offset Voltage [mv] - - Ta= C Ta=8 C Input Offset Voltage [mv] - - V CC + =V V CC + =V V CC + =V - 4 8 6 4 8 Supply Voltage V CC + [V] - - - 7 Ambient Temperature [ C] Input Offset Voltage vs. Common-Mode Input Voltage V CC + =V Input Offset Voltage vs. Common-Mode Input Voltage V CC + =V Input Offset Voltage [mv] - Ta= C Ta=8 C Input Offset Voltage [mv] - Ta=8 C Ta= C - - Common-Mode Input Voltage [V] - - 4 Common-Mode Input Voltage [V] Input Offset Voltage vs. Common-Mode Input Voltage V CC + =V Input Bias Current vs. Temperature V CM =V CC+ / Input Offset Voltage [mv] - Ta=8 C Ta= C Input Bias Current [na] 4 V + =V V + =V V + =V - -. -....... Common-Mode Input Voltage [V] - - 7 Ambient Temperature [ºC] - 7 -
TYPICAL CHARACTERISTICS 6 Voltage Gain vs. Supply Voltage Ta= C 4 Large Signal Voltage Gain vs. Temperature V CC + =V, R L =kω, V O =V to V Voltage Gain [db] 4 8 6 4 R L =kω R L =kω Large Signal Voltage Gain [db] 9 8 7 4 8 6 4 8 Supply Voltage V CC + [V] 6 - - 7 Ambient Temperature [ C] 4 CMR vs. Frequency V CC + /V CC - =±7.V, Ta= C 4 Large Signal Voltage Gain vs. Frequency V CC + =V Common-Mode Rejection Ratio [db] 8 6 4 Large Signal Voltage Gain [db] 8 6 4 k k k M Frequency [Hz]. k k k M Frequency [Hz] - 8 -
APPLICATION Improvement of Cross-over Distortion Equivalent circuit at the output stage NJM4C / NJM4CA,in its static state ( No in and output condition ) when design,q U being biassed by constant current ( break down beam ) yet,q L stays OFF. While using with both power source mode,the cross-over distortion might occur instantly when Q L ON. There might be cases when application for amplifier of audio signals,not only distortion but also the apparent frequency bandwidth being narrowed remarkably. It is adjustable especially when using both power source mode,constantly to use with higher current on Q U than the load current ( including feedback current ),and then connect the pull-down resister R P at the part between output and V cc pins. - 9 -
PACKAGE OUTLINE UNIT : mm SOP4 8.6±. SSOP4 8 4.4±. 6.4±. 7.±..±..9±. 6.±..±..7.4±.9.7±.7. S S. M.±..8±.4 ~ 8 +.. -. ~ º 4.6.67MAX +..-..±... M.±. [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the - -