INA2181A1IDGSR

Overview

The INA2181A1IDGSR is a bidirectional current-sense amplifier from Texas Instruments. It supports low-side and high-side voltage output configurations with a maximum common-mode voltage of 26 V. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V. It features a fixed gain of 200 V/V, a bandwidth of 105 kHz, and a typical CMRR of 100 dB. Input offset voltage is specified at 100 µV, and quiescent current per channel is 500 µA. The component functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Supports bidirectional current sensing for both sourcing and sinking applications
• Enables flexible placement via low-side and high-side voltage output options
• Provides high accuracy through a fixed 200 V/V gain and 100 dB CMRR

Applications

• Battery management systems
• Industrial process control
• Power supply monitoring

Procurement Notes

Verify the specific suffix IDGSR corresponds to the VSSOP-10 package and tape-and-reel delivery format. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly line. Ensure the design accommodates the 26 V common-mode voltage limit and 5.5 V supply constraint.

Selection Notes

Select this component when a fixed 200 V/V gain is required for precise low-current measurements. It is suitable for designs needing simultaneous bidirectional capability and high-side sensing flexibility. Consider the 105 kHz bandwidth for applications requiring moderate speed response without excessive noise filtering complexity.

Part Context

This part belongs to the INAx181 family of Texas Instruments current-sense amplifiers. These devices are designed for general-purpose current monitoring in industrial and consumer electronics. The family offers various gain options and package types to suit different board space and precision requirements.

Replacement Considerations

INA2181A1IDGST is a pin-compatible alternative in a TSSOP package.