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INA2331

Burr-Brown
Part Number INA2331
Manufacturer Burr-Brown
Description CMOS INSTRUMENTATION AMPLIFIERS
Published Feb 5, 2020
Detailed Description INA331 INA2331 ® INA331 INA2331 SBOS215C – DECEMBER 2001 – REVISED APRIL 2005 Low-Power, Single-Supply, CMOS INSTRUME...
Datasheet PDF File INA2331 PDF File

INA2331
INA2331

Overview
INA331 INA2331 ® INA331 INA2331 SBOS215C – DECEMBER 2001 – REVISED APRIL 2005 Low-Power, Single-Supply, CMOS INSTRUMENTATION AMPLIFIERS FEATURES q DESIGNED FOR LOW COST q HIGH GAIN ACCURACY: G = 5, 0.
02%, 2ppm/°C q GAIN SET WITH EXT.
RESISTORS FOR > 5V/V q LOW OFFSET VOLTAGE: ±250µV q HIGH CMRR: 94dB DC, 50dB at 45kHz q LOW BIAS CURRENT: 0.
5pA q BANDWIDTH, SLEW RATE: 2.
0MHz, 5V/µs q RAIL-TO-RAIL OUTPUT SWING: (V+) – 0.
02V q WIDE TEMPERATURE RANGE: –55°C to +125°C q LOW QUIESCENT CURRENT: 490µA max/chan q SHUT DOWN: 0.
01µA q MSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGES APPLICATIONS q INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermocouple, Position q PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG q A/D CONVERTER SIGNAL CONDITIONING q DIFFERENTIAL LINE RECEIVERS WITH GAIN q FIELD UTILITY METERS q PCMCIA CARDS q AUDIO AMPLIFIERS q COMMUNICATION SYSTEMS q TEST EQUIPMENT q AUTOMOTIVE INSTRUMENTATION DESCRIPTION The INA331 and INA2331 are rail-to-rail output, low-power CMOS instrumentation amplifiers that offer wide range, singlesupply 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.
R1 R2 VREF VIN– VIN+ G = 5 + (5R2/R1) 40kΩ 10kΩ 10kΩ A1 40kΩ A2 RG INA331 A3 ...


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