NTE996 Linear Integrated Circuit Operational Transconductance Amplifier Description: The NTE996 is a programmable transconductance block intended to fulfill a wide variety of variable gain applications. This device has differential inputs and high impedance pushpull outputs. The NTE996 has high input impedance and its transconductance (g ) is directly proportional to the ampli- m fier bias current (I ). ABC High slew rate together with programmable gain make the NTE996 an ideal choice for variable gain applications such as sample and hold, multiplexing, filtering, and multiplying, Features: Slew Rate (Unity Gain Compensated): 50V/ s Fully Adjustable Gain: 0 to g R Limit m L Extended g Linearity: 3 Decades m Flexible Supply Voltage Range: 2V to 18V Adjustable Power Consumption Absolute Maximum Ratings: DC Supply Voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V S Power Dissipation, P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW D Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Amplifier Bias Current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA ABC DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +V to V S S Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite Operating Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C opr Storage Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to +150C stg Lead Temperature (During Soldering, 10sec), T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260C LElectrical Characteristics: (V = 15V, I = 500 A, T = +25C unless otherwise specified) S ABC A Parameter Test Conditions Min Typ Max Unit Input Offset Voltage 0.4 5.0 mV T = 0 to +70C, I = 5 A 0.3 A ABC Input Offset Voltage Charge 5 A I 500 A 0.1 mV ABC Input Offset Current 0.1 A Input Bias Current 0.4 5.0 A T = 0 to +70C 1.0 7.0 A Forward Transconductance (g ) 6700 9600 13000 mho m T = 0 to +70C 5400 A Peak Output Current R = 0, I = 5 A 5 A L ABC R = 0 350 500 650 L R = 0, T = 0 to +70C 300 L A Peak Output Voltage V Positive R = , 5 A I 500 A +12.0 +14.2 L ABC Negative R = , 5 A I 500 A 12.0 14.4 L ABC Amplifier Supply Current 1.1 mA Input Offset Voltage Sensitivity V/V Positive V / V+ 20 150 OFFSET Negative V / V 20 150 OFFSET Common Mode Rejection Ratio 80 110 dB Common Mode Range 12 14 V Input Resistance 10 26 k Magnitude of Leakage Current I = 0 0.2 100 nA ABC Differential Input Current I = 0, Input = 4V 0.02 100 nA ABC Open Loop Bandwidth 2.0 MHz Slew Rate Unity Gain Compensated 50 V/ s