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.
●Configured internally in a gain of 5V/V, the INA331 offers flexibility in higher gains by choosing external resistors.
●The INA331 rejects line noise and its harmonics, because common-mode error remains low even at higher frequencies.
●High bandwidth and slew rate makes the INA331 ideal for directly driving sampling Analog-to-Digital (A/D) converters as well as general-purpose applications.
●With high precision, low cost, and small packages, the INA331 outperforms discrete designs. They are specified for a wide temperature range of -55°C to +125°C.
● DESIGNED FOR LOW COST
● HIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°C
● GAIN SET WITH EXT. RESISTORS FOR >5V/V
● LOW OFFSET VOLTAGE: ±250 µV
● 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: 490 µA max/chan
● SHUT DOWN: 0.01 µA
● 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
●All trademarks are the property of their respective owners.
