INA212BIRSWT

Overview

The INA212BIRSWT is a single-channel, bi-directional current-shunt monitor from Texas Instruments' Zero-Drift series. It features a voltage output and supports high or low-side measurements with a common-mode voltage range of -0.3V to 26V. The device operates on a single supply voltage between 2.7V and 26V, consuming a maximum supply current of 100µA. Key electrical parameters include an input bias current of 28µA, an input offset voltage of 550nV, a gain-bandwidth product of 14kHz, and a slew rate of 0.4V/µs. It is housed in a 6-VSON package and rated for operation from -40°C to +125°C.

Feature Summary

• Zero-drift architecture ensures low offset voltage for accurate sensing of small shunt voltages down to 10mV full scale.
• Bi-directional capability allows detection of current flow in both directions across the shunt resistor.
• Supports high-side and low-side measurement configurations independent of the supply voltage level.

Applications

• Battery management systems requiring precise current monitoring
• Overcurrent protection circuits in portable devices
• Load switching applications in industrial control systems

Procurement Notes

Verify the specific suffix 'BIRSWT' against the official datasheet to confirm the exact temperature grade, packaging type, and tape-and-reel specifications. Ensure compatibility with your PCB footprint for the VSON-6 package. Confirm RoHS compliance status for your region's regulatory requirements before finalizing procurement.

Selection Notes

Select this component when high accuracy at low signal levels is critical due to its zero-drift technology. It is suitable for battery-powered applications where low quiescent current is essential. Consider the 14kHz bandwidth for response speed requirements. Ensure the common-mode voltage stays within the specified -0.3V to 26V range for proper operation.

Part Context

This part belongs to the INA21x family of current-shunt monitors from Texas Instruments. These devices are designed for bidirectional current sensing with voltage outputs. The family offers various gain options and packages, catering to different precision and space constraints in power management and monitoring applications.

Replacement Considerations

Check for direct pin-compatible replacements within the INA21x family such as INA210 or INA211 if gain or bandwidth differences are acceptable. Verify that any substitute maintains the Zero-Drift characteristic and VSON-6 package dimensions for board-level interchangeability.