INA190A4IRSWT

Overview

The INA190A4IRSWT is a unidirectional current shunt monitor manufactured by Texas Instruments. It operates within a supply voltage range of 1.7 V to 5.5 V and supports common-mode voltages from -200 mV to 40 V. The device features a fixed gain of 200 V/V, a gain bandwidth product of 33 kHz, and a 150 dB common-mode rejection ratio. Key electrical specifications include an input bias current of 500 pA, an input offset voltage of -3 µV, and a quiescent current of 65 µA. It is housed in a 10-UQFN package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Ultra-precise performance with picoamp-level input bias current for high-side sensing applications
• Bidirectional operation capability supporting negative common-mode voltages down to -200 mV
• High common-mode rejection ratio ensuring accurate measurements in noisy environments

Applications

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

Procurement Notes

Verify the specific suffix IRSWT against the official datasheet to confirm the UQFN-10 package and temperature grade. Confirm that the component status aligns with your production timeline, as availability may vary. Ensure compatibility with your PCB footprint and reflow profile requirements before finalizing procurement orders.

Selection Notes

Select this part when precise low-current measurement is required alongside high common-mode voltage tolerance. The fixed 200 V/V gain suits applications needing significant signal amplification without external resistors. Consider the UQFN-10 package size constraints and thermal dissipation capabilities relative to your board layout design.

Part Context

This component belongs to the INA190 series of current sense amplifiers designed for high-accuracy monitoring. It utilizes zero-drift architecture to minimize offset voltage drift over temperature. The series offers various gain options and packages to accommodate different system density and precision requirements in power management circuits.

Replacement Considerations

Check for updated revisions or alternative packages within the INA190 family if this specific variant is discontinued. Verify pinout compatibility before substituting with other current sense amplifiers from different manufacturers.