EmbeddedRelated.com
    Parts    INA332AIDGKRG4
INA332AIDGKRG4

TIINA332AIDGKRG4

Texas Instruments
Instrumentation Amplifier 1 Circuit Rail-to-Rail 8-VSSOP
NRND1,001 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The INA332AIDGKRG4 is a low-power instrumentation amplifier designed for high-precision, low-noise amplification of differential signals. Operating on a single supply from 2.7V to 5.5V, it features a unique architecture with a built-in oscillator and a rail-to-rail output for maximum dynamic range.

Why Choose This Part

This amplifier offers a high 2 MHz bandwidth and a 5V/us slew rate, which is significantly faster than many competing low-power instrumentation amplifiers. Its CMOS input stages result in an extremely low input bias current of 0.5 pA, minimizing errors in high-impedance source applications.

Applications

Bridge Sensor Interface
Ideal for amplifying small differential signals from strain gauges, load cells, and pressure transducers in industrial environments.
Medical Instrumentation
Suited for ECG and EEG monitoring where low input bias current and low-noise performance are critical.
Battery-Powered Portable Gear
The low 415uA supply current and 0.01uA shutdown mode make it suitable for handheld diagnostic tools.

Key Specifications

Slew Rate 5V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
-3db Bandwidth 2 MHz
Amplifier Type Instrumentation
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Current - Supply 415uA
Number of Circuits 1
Current - Input Bias 0.5 pA
Operating Temperature -55degC ~ 125degC
Voltage - Input Offset 2 mV
Supplier Device Package 8-VSSOP
Current - Output / Channel 48 mA
Voltage - Supply Span (Max) 5.5 V
Voltage - Supply Span (Min) 2.5 V

Getting Started

When designing the PCB, place a 0.1uF bypass capacitor as close to the power supply pins as possible to maintain stability. Use the shutdown pin to disable the device and reduce power consumption in duty-cycled applications. Validation can be performed using the INA332EVM evaluation module or by prototyping with an 8-VSSOP to DIP adapter on a breadboard.

Also Consider

INA333AIDGKR TITexas Instruments - Offers lower power consumption and zero-drift performance for higher precision at lower frequencies.