INA2290A5IDGKT

Overview

The INA2290A5IDGKT is a dual-channel, high-side current-sense amplifier from the INAx290 family. It operates with a supply voltage of 2.7 V to 20 V and supports common-mode voltages from 2.7 V to 120 V. The device features a fixed gain of 500 V/V, a bandwidth of 800 kHz, and a slew rate of 2 V/µs. Key electrical characteristics include an input offset voltage of ±12 µV maximum, a DC CMRR of 160 dB, and a quiescent current of 370 µA per channel. It is housed in an 8-pin VSSOP package.

Feature Summary

• Ultra-precise zero-drift architecture enables accurate measurement of low sense voltages across extended temperature ranges.
• High common-mode rejection ratio ensures signal integrity over wide common-mode voltage variations.
• Wide bandwidth and fast slew rate support rapid detection and processing of overcurrent events.

Applications

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

Procurement Notes

Verify the specific suffix IDGKT corresponds to the VSSOP-8 package and tape-and-reel shipping configuration. Confirm that the A5 designation matches the required 500 V/V gain for your circuit design. Ensure compatibility with the 2.7 V to 20 V supply range and 120 V common-mode limits during integration.

Selection Notes

Select this component when high precision and wide dynamic range are required for high-side current sensing. The dual-channel configuration allows monitoring two separate circuits within a single footprint. Consider the 500 V/V gain option if the shunt resistor voltage drop is minimal relative to the desired output swing.

Part Context

This device belongs to the INAx290 series, which includes single-channel (INA290) and quad-channel (INA4290) variants. All members share the same ultra-precise, high-bandwidth architecture but differ in channel count and physical package dimensions to suit various board space constraints.

Replacement Considerations

Direct substitutes within the same family include INA2290A1IDGKT, INA2290A2IDGKT, INA2290A3IDGKT, and INA2290A4IDGKT, which offer different fixed gains (20, 50, 100, and 200 V/V respectively).

FAQ

What is the maximum common-mode voltage supported by the INA2290A5?

The device supports a common-mode voltage range from 2.7 V to 120 V.

Does the INA2290A5 support bidirectional current sensing?

No, the INAx290 family is designed for high-side only current sensing applications.