INA2331 Series
Low-power, single-supply, CMOS, instrumentation amplifier
Manufacturer: Texas Instruments
Catalog
Low-power, single-supply, CMOS, instrumentation amplifier
Key Features
• DESIGNED FOR LOW COSTHIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°CGAIN SET WITH EXT. RESISTORS FOR >5V/VLOW OFFSET VOLTAGE: ±250 µVHIGH CMRR: 94dB DC, 50dB at 45kHzLOW BIAS CURRENT: 0.5pABANDWIDTH, SLEW RATE: 2.0MHz, 5V/µsRAIL-TO-RAIL OUTPUT SWING: (V+)– 0.02VWIDE TEMPERATURE RANGE: –55°C to +125°CLOW QUIESCENT CURRENT: 490 µA max/chanSHUT DOWN: 0.01 µAMSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGESAPPLICATIONSINDUSTRIAL SENSOR AMPLIFIERS:Bridge, RTD, Thermocouple, PositionPHYSIOLOGICAL AMPLIFIERS:ECG, EEG, EMGA/D CONVERTER SIGNAL CONDITIONINGDIFFERENTIAL LINE RECEIVERS WITH GAINFIELD UTILITY METERSPCMCIA CARDSAUDIO AMPLIFIERSCOMMUNICATION SYSTEMSTEST EQUIPMENTAUTOMOTIVE INSTRUMENTATIONAll trademarks are the property of their respective owners.DESIGNED FOR LOW COSTHIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°CGAIN SET WITH EXT. RESISTORS FOR >5V/VLOW OFFSET VOLTAGE: ±250 µVHIGH CMRR: 94dB DC, 50dB at 45kHzLOW BIAS CURRENT: 0.5pABANDWIDTH, SLEW RATE: 2.0MHz, 5V/µsRAIL-TO-RAIL OUTPUT SWING: (V+)– 0.02VWIDE TEMPERATURE RANGE: –55°C to +125°CLOW QUIESCENT CURRENT: 490 µA max/chanSHUT DOWN: 0.01 µAMSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGESAPPLICATIONSINDUSTRIAL SENSOR AMPLIFIERS:Bridge, RTD, Thermocouple, PositionPHYSIOLOGICAL AMPLIFIERS:ECG, EEG, EMGA/D CONVERTER SIGNAL CONDITIONINGDIFFERENTIAL LINE RECEIVERS WITH GAINFIELD UTILITY METERSPCMCIA CARDSAUDIO AMPLIFIERSCOMMUNICATION SYSTEMSTEST EQUIPMENTAUTOMOTIVE INSTRUMENTATIONAll trademarks are the property of their respective owners.
Description
AI
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.
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.
