LM3080AN

LM3080 Operational Transconductance Amplifier February 1995 LM3080 Operational Transconductance Amplifier General Description The LM3080 is a programmable transconductance block intended to fulfill a wide variety of variable gain applications The LM3080 has differential inputs and high impedance push-pull outputs The device has high input impedance and its transconductance (gm) is directly proportional to the amplifier bias current (IABC) High slew rate together with programmable gain make the LM3080 an ideal choice for variable gain applications such as sample and hold multiplexing filtering and multiplying The LM3080N and LM3080AN are guaranteed from 0 C to a 70 C Features Y Y Y Y Y Slew rate (unity gain compensated) 50 V ms Fully adjustable gain 0 to gm  RL limit Extended gm linearity 3 decades Flexible supply voltage range g 2V to g 18V Adjustable power consumption Schematic and Connection Diagrams TL H 7148 – 1 Dual-In-Line Package TL H 7148 – 2 Top View Order Number LM3080AN LM3080M or LM3080N See NS Package Number M08A or N08E C1995 National Semiconductor Corporation TL H 7148 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage (Note 2) LM3080 LM3080A Power Dissipation Differential Input Voltage g 18V g 22V Amplifier Bias Current (IABC) DC Input Voltage Output Short Circuit Duration Operating Temperature Range LM3080N or LM3080AN Storage Temperature Range Lead Temperature (Soldering 10 sec ) 2 mA a VS to b VS Indefinite 0 C to a 70 C b 65 C to a 150 C 250 mW g 5V 260 C Electrical Characteristics (Note 1) Parameter Input Offset Voltage Over Specified Temperature Range IABC e 5 mA Input Offset Voltage Change Input Offset Current Input Bias Current Over Specified Temperature Range Forward Transconductance (gm) Over Specified Temperature Range Peak Output Current RL e 0 IABC e 5 mA RL e 0 RL e 0 Over Specified Temperature Range RL e % 5 mA s IABC s 500 mA RL e % 5 mA s IABC s 500 mA 6700 5400 350 300 5 mA s IABC s 500 mA Conditions Min LM3080 Typ 04 03 01 01 04 1 9600 5 500 06 5 7 13000 7700 4000 3 350 300 Max 5 6 Min LM3080A Typ 04 03 01 01 04 1 9600 5 500 Max 2 5 2 3 06 5 8 12000 7 650 mV mV mV mV mA mA mA mmho mmho mA mA mA Units 650 Peak Output Voltage Positive Negative Amplifier Supply Current Input Offset Voltage Sensitivity Positive Negative Common Mode Rejection Ratio Common Mode Range Input Resistance Magnitude of Leakage Current Differential Input Current Open Loop Bandwidth Slew Rate a 12 b 12 a 14 2 b 14 4 a 12 b 12 a 14 2 b 14 4 V V mA 150 150 mV V mV V dB V kX 5 5 nA nA MHz V ms 11 DVOFFSET DV a DVOFFSET DVb 80 g 12 11 150 150 80 g 12 20 20 110 g 14 20 20 110 g 14 10 IABC e 0 IABC e 0 Input e g 4V 26 02 0 02 2 100 100 10 26 02 0 02 2 50 Unity Gain Compensated 50 Note 1 These specifications apply for VS e g 15V and TA e 25 C amplifier bias current (IABC) e 500 mA unless otherwise specified Note 2 Selection to supply voltage above g 22V contact the factory 2 Typical Performance Characteristics Input Offset Voltage Input Offset Current Input Bias Current Peak Output Current Peak Output Voltage and Common Mode Range Amplifier Supply Current Total Power Dissipation Leakage Current Input Leakage Transconductance Input Resistance Amplifier Bias Voltage vs Amplifier Bias Current TL H 7148 – 3 3 Typical Performance Characteristics Input and Output Capacitance (Continued) Output Resistance TL H 7148 – 4 TL H 7148 – 5 Leakage Current Test Circuit Unity Gain Follower TL H 7148 – 6 Differential Input Current Test Circuit TL H 7148 – 8 TL H 7148 – 7 4 Physical Dimensions inches (millimeters) Molded Package SO (M) Order Number LM3080M NS Package Number M08A 5 LM3080 Operational Transconductance Amplifier Physical Dimensions inches (millimeters) (Continued) Molded Dual-In-Line Package (N) Order Number LM3080AN or LM3080N NS Package Number N08E 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