INA213BIDCKR

Overview

The INA213BIDCKR 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 supports common-mode voltages from -0.3 V to 26 V. The device features a fixed gain of 50 V/V, a gain bandwidth product of 14 kHz, and a maximum supply current of 65 µA. It offers an input offset voltage of 0.55 µV and a common-mode rejection ratio of 120 dB. The component functions within a temperature range of -40°C to 125°C and is housed in a SC-70-6 surface-mount package.

Feature Summary

• Zero-drift architecture ensures low offset voltage for high-precision measurements across the operating temperature range.
• Bidirectional sensing capability allows detection of current flow in both directions relative to ground.
• Supports high-side and low-side current monitoring with wide common-mode voltage tolerance.

Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops
• Power supply output current regulation

Procurement Notes

Verify the specific suffix 'CKR' corresponds to the SC-70-6 tape-and-reel packaging configuration. Confirm that the 'B' grade designation aligns with the required offset voltage specifications for your application. Ensure compatibility with the 2.7 V to 26 V supply range and check for any recent Product Change Notifications regarding assembly sites or marking updates.

Selection Notes

Select this component when high accuracy is required without external calibration due to its zero-drift technology. It is suitable for applications needing a compact SC-70-6 footprint. Compare against other INA21x variants if different gain factors or bandwidth requirements are necessary. Ensure the system's common-mode voltage does not exceed the 26 V limit.

Part Context

This part belongs to the Texas Instruments INA21x family of voltage-output, bidirectional, zero-drift current-shunt monitors. The series provides multiple fixed gain options to accommodate various shunt resistor values and voltage ranges. These devices are designed for applications demanding high precision in harsh environments, leveraging chopper stabilization to minimize drift.

Replacement Considerations

INA213BQCKRQ1: Automotive-grade version with AEC-Q100 qualification. INA213IDCKR: Standard grade with potentially different offset voltage tolerances. INA212BIDCKR: Lower gain variant (25 V/V) within the same series. INA214BIDCKR: Higher gain variant (100 V/V) within the same series.