NTE894M & NTE894SM Integrated Circuit Low Noise Operational Amplifier Description: The NTE894M and NTE894SM are single, high−performance, low noise operational amplifiers. Compared to other operational amplifier, these devices show better noise performance, improved output drive capability and considerably higher small−signal and power bandwidths. This makes the devices especially suitable for applications in high quality and professional audio equipment, in instrumentation and control circuits and telephone channel amplifiers. The OP amps are internally compensated for gain equal to, or higher than, three. Features: D Small−Signal Bandwidth D Large Supply Voltage Range D Available in 8−Lead Mini DIP (NTE894M) and Surface Mount SOIC−8 (NTE894SM) Applications: D Audio Equipment D Instrumentation and Control Circuits D Telephone Channel Amplifiers D Medical Equipment Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V Differential Input Voltage (Note 1), VDIFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5V Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±V supply V Power Dissipation (TA = +25°C, Note 2), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1150mW Output Short−Circuit Duration (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indifinite Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Lead Soldering Temperature (10 seconds), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Note 1. Diodes protect the inputs against over voltage. Therefore, unless current limiting resistors are used, large currents will flow if the differential input voltage exceeds 0.6V. maximum current should be limited to ±10mA. Note 2. For operation at elevated temperature, derate packages based on the following junction−to− ambient thermal resistance: NTE894M 105°C/W; NTE894SM 160°C/W. Note 3. Output may be shorted to GND at VS = 15V, TA = +25°C. Temperature and/or supply voltages must be limited to ensure dissipation rating is not exceeded. DC Electrical Characteristics: (TA = +25°C, VS = ±15V, unless otherwise specified) Parameter Symbol Min Typ Max Unit − 0.5 4 mV − − 5 mV ∆VOS/∆T − 5 − µV/°C IOS − 20 300 nA − − 400 nA ∆IOS/∆T − 200 − pA/°C IB − 500 1500 nA − − 2000 nA ∆IB/∆T − 5 − nA/°C Supply Current ICC − 4 8 mA − − 10 mA Input Common−Mode Range VCM ±12 ±13 − V Common−Mode Rejection Ratio CMRR 70 100 − dB Power Supply Rejection Ratio PSRR − 10 100 µV/V Large−Signal Voltage Gain AVOL 25 100 − V/mV 15 − − V/mV ±12 ±13 − V ±10 ±12 − V RL ≥ 600Ω, VO = ±18V ±15 ±16 − V RL ≥ 2kΩ ±13 ±13.5 − V ±12 ±12.5 − V Input Offset Voltage Test Conditions VOS TA = 0° to +70°C Input Offset Current TA = 0° to +70°C Input Bias Current TA = 0° to +70°C TA = 0° to +70°C RL ≥ 600Ω, VO = ±10V TA = 0° to +70°C Output Voltage Swing VOUT RL ≥ 600Ω TA = 0° to +70°C TA = 0° to +70°C Input Resistance RIN 50 100 − kΩ Output Short−Circuit Current ISC − 38 − mA AC Electrical Characteristics: (TA = +25°C, VS = ±15V unless otherwise specified) Parameter Output Resistance Symbol ROUT Transient Response Rise Time Test Conditions Min Typ Max Unit − 0.3 − Ω − 20 − ns − 20 − % − 50 − ns − 35 − % f = 10kHz, CC = 0 − 6 − V/mV f = 10kHz, CC = 22pF − 2.2 − V/mV CC = 22pF, CL = 100pF − 10 − MHz CC = 0 − 13 − V/µs CC = 22pF − 6 − V/µs VOUT = ±10V, CC = 0 − 200 − kHz VOUT = ±10V, CC = 22pF − 95 − kHz VOUT = ±14V, RL = 600Ω, CC = 22pF, VCC = ±18V − 70 − kHz AV = 30dB, Closed−Loop, f = 10kHz, RL = 600Ω, CC = 22pF Voltage Follower, VIN = 50mV, RL = 600Ω, CC = 22pF, CL = 100pF tR Overshoot Transient Response Rise Time VIN = 50mV, RL = 600Ω, CC = 47pF, CL = 500pF tR Overshoot Gain Gain Bandwidth Product Slew Rate Power Bandwidth AV GBW SR Electrical Characteristics: (TA = +25°C, VS = 15V unless otherwise specified) Parameter Symbol Input Noise Voltage VNOISE Min Typ Max Unit fO = 30Hz − 5.5 7.0 nVpHz fO = 1kHz − 3.5 4.5 nVpHz fO = 30Hz − 1.5 − pApHz fO = 1kHz − 0.4 − pApHz Broadband Noise Figure f = 10Hz to 20kHz, RS = 5kΩ − 0.9 − dB Channel Separation f = 1kHz, RS = 5kΩ − 110 − dB Input Noise Current Test Conditions INOISE Pin Connection Diagram Balance 1 8 Balance/Compensation Inverting Input 2 7 V (+) Non−Inverting Input 3 6 Output V (−) 4 5 Compensation NTE894M 8 5 .256 (6.52) Max 1 4 .393 (10.0) Max .300 (7.62) .150 (3.81) .100 (2.54) .070 (1.77) Min .300 (7.62) NTE894SM .192 (4.9) 8 1 .050 (1.27) 5 4 .236 (5.99) .154 (3.91) 016 (.406) .198 (5.03) 061 (1.53) .006 (.152) NOTE: Pin1 on Beveled Edge