INA214CIRSWR

Overview

The INA214CIRSWR is a single-channel, bidirectional current shunt monitor from Texas Instruments. It features a zero-drift architecture with a maximum supply voltage of 26 V and operates within a temperature range of -40°C to +85°C. The device offers a gain bandwidth product of 30 kHz and a common-mode rejection ratio of 105 dB. Input bias current is limited to 35 uA, while input offset voltage reaches 60 uV. Supply current consumption is 115 uA, and gain error is specified at 0.02%. It utilizes a UQFN-10 package.

Feature Summary

• Bidirectional measurement capability for high-side or low-side sensing
• Zero-drift architecture ensures low offset voltage stability
• Wide common-mode voltage range supports various power systems

Applications

• Industrial process control monitoring
• Power supply current tracking
• Overcurrent protection circuits

Procurement Notes

Verify the specific suffix 'C' indicates the industrial temperature grade (-40°C to +85°C) and 'SW' denotes the UQFN-10 package. Confirm the 'R' suffix corresponds to reel packaging. Ensure compatibility with existing PCB footprints for the UQFN-10 form factor before procurement.

Selection Notes

Select this component when precise DC current measurement is required in space-constrained designs. The zero-drift technology minimizes calibration needs compared to standard amplifiers. Consider the 30 kHz bandwidth for applications requiring moderate response speeds without excessive noise.

Part Context

Part of the INA21x series of voltage-output, bidirectional, zero-drift current shunt monitors. This family provides fixed gains and wide common-mode ranges. The INA214 variant specifically targets applications needing higher bandwidth than lower-end models while maintaining low power consumption.

Replacement Considerations

INA214BIRSWT: Higher precision grade with extended temperature range up to +125°C. INA214AIRSWT: Automotive grade with wider operating temperature range.