INA212BIRSWR

Overview

The INA212BIRSWR is a bidirectional zero-drift current-shunt monitor manufactured by Texas Instruments. It operates on a single supply voltage ranging from 2.7 V to 26 V and consumes a maximum supply current of 100 µA. The device features a gain bandwidth product of 30 kHz and an input bias current of 35 µA. It provides high common-mode rejection with a CMRR of 105 dB and maintains an input offset voltage of 60 µV. The component supports operation across a temperature range of -40°C to +125°C and is housed in a UQFN-10 package.

Feature Summary

• Zero-drift architecture ensures low offset voltage for accurate sensing of small shunt voltages
• Bidirectional capability allows measurement of current flow in both directions
• Supports high-side and low-side measurements independent of supply voltage

Applications

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

Procurement Notes

Verify the specific suffix 'B' indicates the specified gain accuracy grade and 'IRSWR' denotes the UQFN-10 package and reel quantity. Confirm the manufacturer part number matches the official Texas Instruments database to ensure authenticity. Check RoHS compliance status and moisture sensitivity level prior to ordering. Ensure the selected variant aligns with the required gain error specifications for the target application circuit design.

Selection Notes

Select this component when precise bidirectional current monitoring is required in space-constrained designs. The UQFN-10 package offers a compact footprint suitable for dense PCB layouts. The zero-drift technology minimizes calibration needs over wide temperature ranges. Evaluate the 30 kHz bandwidth against the signal frequency requirements of the monitored circuit to ensure adequate response time without excessive noise susceptibility.

Part Context

This device belongs to the INA21x family of current-shunt monitors, which are designed for high-precision applications requiring minimal drift. The family shares common operating principles but varies in gain, bandwidth, and package options. The INA212 specifically targets applications needing moderate bandwidth with high DC accuracy.

FAQ

What is the common-mode voltage range for the INA212BIRSWR?

The device supports a common-mode voltage range from -300 mV to 26 V.

Does the INA212 support high-side or low-side current sensing?

It supports both high-side and low-side current sensing configurations.