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The INA2141 is a low power, dual instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).
Simple pin connections set an accurate gain of 10 or 100V/V without external resistors. Internal input protection can withstand up to ±40V without damage.
The INA2141 is laser trimmed for very low offset voltage (50mV), drift (0.5V/) and high commonmode rejection (117dB at G = 100). It operates with power supplies as low as ±2.25V, and quiescent current is only 750mA per amplifier-ideal for battery operated systems.
Packages are 16-pin plastic DIP, and SOL-16 surface-mount, specified for the 40 to +85 temperature range.
INA2141 Maximum Ratings
Supply Voltage .................................................................................. ±18V Analog Input Voltage Range ............................................................. ±40V Output Short-Circuit (to ground) .............................................. Continuous Operating Temperature .................................................... 40 to +125 Storage Temperature........................................................ 40 to +125 Junction Temperature ...................................................................... +150 Lead Temperature (soldering, 10s) .................................................. +300
INA2141 Features
` LOW OFFSET VOLTAGE: 50V max ` LOW DRIFT: 0.5V/ max ` EXCELLENT GAIN ACCURACY: ±0.05% max at G = 10 ` LOW INPUT BIAS CURRENT: 5nA max ` HIGH CMR: 117dB min (G = 100) ` INPUTS PROTECTED TO ±40V ` WIDE SUPPLY RANGE: ±2.25V to ±18V ` LOW QUIESCENT CURRENT: 750A/IA ` 16-PIN PLASTIC DIP, SOL-16
INA2141 Typical Application
· SENSOR AMPLIFIER THERMOCOUPLE, RTD, BRIDGE · MEDICAL INSTRUMENTATION · MULTIPLE CHANNEL SYSTEMS