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INA188IDR

TIINA188IDR

Texas Instruments
Zero-Drift Amplifier 1 Circuit Rail-to-Rail 8-SOIC
NRND10,223 in stock
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Overview

The INA188IDR is a zero-drift precision instrumentation amplifier that uses a proprietary auto-zeroing technique to provide low offset voltage and near-zero drift over time and temperature. It operates on a wide supply range from 4V to 36V, making it suitable for high-voltage industrial applications requiring accurate signal conditioning.

Why Choose This Part

This amplifier delivers excellent DC performance with a 600 kHz bandwidth and a 0.9V/us slew rate. The rail-to-rail output and wide supply range provide significant design flexibility in single-supply or dual-supply industrial environments.

Applications

Bridge Amplifiers
Ideal for wheatstone bridge sensor interfaces in weigh scales and force sensors where high DC precision is required.
Industrial Process Control
Used in PLC analog input modules to amplify small differential signals in the presence of high common-mode noise.
Precision Low-Side Current Sensing
Provides accurate current monitoring by amplifying voltages across low-resistance shunt resistors with minimal error.

Key Specifications

Slew Rate 0.9V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
-3db Bandwidth 600 kHz
Amplifier Type Zero-Drift
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Supply 1.4mA
Number of Circuits 1
Current - Input Bias 850 pA
Operating Temperature -40degC ~ 125degC
Voltage - Input Offset 25 uV
Supplier Device Package 8-SOIC
Voltage - Supply Span (Max) 36 V
Voltage - Supply Span (Min) 4 V

Getting Started

Designers can evaluate this part using the INA188EVM evaluation module. For PCB layout, ensure the gain-setting resistor is placed as close to the RG pins as possible to minimize parasitic capacitance and maintain high common-mode rejection.

Also Consider

AD8221ARZ Analog Devices - An industry-standard instrumentation amplifier known for its high common-mode rejection ratio (CMRR) over frequency.

Categories

Analog ICs > Op-Amps