INA4290A3IRGVT

Instrumentation, Op Amps, Buffer Amps Overview

The INA4290A3IRGVT is a quad-channel, high-side current-sense amplifier from the INAx290 family. It features a wide common-mode voltage range of 2.7 V to 120 V and operates on a single supply from 2.7 V to 20 V. The device provides a fixed gain of 100 V/V with a maximum gain error of ±0.1% and an offset voltage of ±15 µV. Key electrical parameters include a bandwidth of 900 kHz, a slew rate of 2 V/µs, and a quiescent current of 1.6 mA (maximum). It utilizes a zero-drift architecture for precision measurements across temperatures from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-precise measurement capability enabled by zero-drift topology and low input bias current.
• High common-mode rejection ratio ensuring accurate signal processing in noisy environments.
• Wide operational bandwidth supporting fast overcurrent protection and dynamic load monitoring.

Instrumentation, Op Amps, Buffer Amps Applications

• Active antenna system mMIMO
• Macro remote radio unit power supplies
• 48-V rack server power distribution

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'VT' indicates tape-and-reel packaging when sourcing. Confirm that the A3 designation corresponds to the required 100 V/V gain setting for your circuit design. Ensure the RGV package footprint matches your PCB layout constraints before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when four independent high-side current channels are required within a compact QFN footprint. The 100 V/V gain option is suitable for applications requiring moderate amplification of small shunt voltages. Consider the 1.6 mA maximum quiescent current against total system power budgets compared to lower-power alternatives.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INAx290 series, which includes single-channel (INA290), dual-channel (INA2290), and quad-channel (INA4290) variants. All share identical electrical specifications but differ in channel count and package type. The INA4290 specifically integrates four channels into a 4 mm x 4 mm QFN package for space-constrained designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct replacements within the same family include INA4290A1, INA4290A2, INA4290A4, and INA4290A5, differing only in fixed gain values. Single or dual-channel equivalents like INA290 or INA2290 may be used if fewer channels suffice.