INA141

® INA 141 INA141 INA 141 Precision, Low Power, G = 10, 100 INSTRUMENTATION AMPLIFIER FEATURES q LOW OFFSET VOLTAGE: 50µV max q LOW DRIFT: 0.5µV/°C max q ACCURATE GAIN: ±0.05% at G = 10 q LOW INPUT BIAS CURRENT: 5nA max q HIGH CMR: 117dB min q INPUTS PROTECTED TO ±40V q WIDE SUPPLY RANGE: ±2.25 to ±18V q LOW QUIESCENT CURRENT: 750µA q 8-PIN PLASTIC DIP, SO-8 DESCRIPTION The INA141 is a low power, general purpose 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 INA141 is laser trimmed for very low offset voltage (50µV), drift (0.5µV/°C) and high commonmode rejection (117dB at G = 100). It operates with power supplies as low as ±2.25V, and quiescent current is only 750µA—ideal for battery operated systems. The INA141 is available in 8-pin plastic DIP, and SO-8 surface-mount packages, specified for the –40°C to +85°C temperature range. APPLICATIONS q BRIDGE AMPLIFIER q THERMOCOUPLE AMPLIFIER q RTD SENSOR AMPLIFIER q MEDICAL INSTRUMENTATION q DATA ACQUISITION V+ 7 – VIN 2 Over-Voltage Protection 252Ω 25kΩ 5050Ω 8 252Ω 25kΩ A2 40kΩ 4 V– International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 ...