FEATURES

DESIGNED FOR LOW COST

HIGH GAIN ACCURACY: G = 5, 0.07%, 2ppm/°C

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

HIGH CMRR: 73dB 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

SHUTDOWN: 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

DESCRIPTION

The INA332 and INA2332 are rail-to-rail output, low-power

CMOS instrumentation amplifiers that offer wide range, singlesupply,

and bipolar-supply operation. Using a special manufacturing

flow, the INA332 family provides the lowest cost

available, while still achieving low-noise amplification of differential

signals with low quiescent current of 415μA (dropping

to 0.01μA when shut down). Returning to normal operation

within microseconds, this INA can be used for battery or

multichannel applications.

Configured internally in a gain of 5V/V, the INA332 offers

flexibility in higher gains by choosing external resistors.

The INA332 rejects line noise and its harmonics because

common-mode error remains low even at higher frequencies.

High bandwidth and slew rate make the INA332 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

INA332 outperforms discrete designs.

Additionally, because they are specified for a wide temperature

range of –55°C to +125°C, the INA332 family can be

used in demanding environments.