INA331AIDGKR

低功耗，单电源， CMOS仪表放大器 Low-Power, Single-Supply, CMOS INSTRUMENTATION AMPLIFIERS

DESCRIPON

The INA331 and INA2331 are rail-to-rail output, low-power CMOS instrumentation amplifiers that offer wide range, single supply operation as well as bipolar-supply operation. The INA331 family provides low-cost, low-noise amplification of differential signals with a low quiescent current of 415µA dropping to 0.01µA when shutdown. Returning to normal operation within microseconds, this INA can be used for battery or multi-channel applications.

FEATURES

● DESIGNED FOR LOW COST

● HIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°C

● GAIN SET WITH EXT. RESISTORS FOR > 5V/V

● LOW OFFSET VOLTAGE: ±250µV

● HIGH CMRR: 94dB DC, 50dB at 45kHz

● LOW BIAS CURRENT: 0.5pA

● BANDWIDTH, SLEW RATE: 2.0MHz, 5V/µs

● RAIL-TO-RAIL OUTPUT SWING: V+ – 0.02V

● WIDE TEMPERATURE RANGE: –55°C to +125°C

● LOW QUIESCENT CURRENT: 490µA max/chan

● SHUT DOWN: 0.01µA

● MSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGES

APPLICATIONS

● INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermocouple, Position

● PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG

● A/D CONVERTER SIGNAL CONDITIONING

● DIFFERENTIAL LINE RECEIVERS WITH GAIN

● FIELD UTILITY METERS

● PCMCIA CARDS

● AUDIO AMPLIFIERS

● COMMUNICATION SYSTEMS

● TEST EQUIPMENT

● AUTOMOTIVE INSTRUMENTATION