INA2180A3IDSGR

Overview

The INA2180A3IDSGR is a dual-channel current-sense amplifier from Texas Instruments. It features a fixed gain of 100 V/V and operates with a supply voltage range of 2.7 V to 5.5 V. The device supports a common-mode input voltage range from –0.2 V to +26 V, allowing for high-side or low-side sensing independent of the supply rail. Key electrical specifications include a maximum offset voltage of ±500 µV at 12 V common-mode voltage, a bandwidth of 150 kHz, and a slew rate of 2 V/µs. It is housed in an 8-pin WSON package.

Feature Summary

• Integrates a matched resistor network providing a fixed gain of 100 V/V to minimize gain error and reduce temperature drift.
• Supports bidirectional current sensing across a wide common-mode voltage range from –0.2 V to +26 V.
• Delivers high bandwidth and fast slew rates to accurately detect rapid changes in sensed current.

Applications

• Motor control
• Battery monitoring
• Power management
• Lighting control
• Overcurrent detection

Procurement Notes

Verify the specific suffix IDSGR corresponds to the 8-pin WSON package variant when sourcing. Confirm that the A3 designation matches the required 100 V/V gain for the design. Ensure the component meets the extended operating temperature range requirements of –40°C to +125°C for the target application environment.

Selection Notes

Select this part when a fixed gain of 100 V/V is required for dual-channel current monitoring. It is suitable for applications where the common-mode voltage exceeds the supply voltage. Consider the 150 kHz bandwidth and 2 V/µs slew rate for dynamic load conditions. Verify that the 8-pin WSON package dimensions fit the available PCB space.

Part Context

This component belongs to the INAx180 family of low- and high-side voltage output current-sense amplifiers. The family includes single-channel (INA180), dual-channel (INA2180), and quad-channel (INA4180) variants. The A3 suffix indicates a fixed gain of 100 V/V, distinguishing it from other gain options within the series.

Replacement Considerations

Other devices within the INA2180 family offer different gain options: INA2180A1 (20 V/V), INA2180A2 (50 V/V), and INA2180A4 (200 V/V). Select these only if the system gain requirement differs from 100 V/V while maintaining the same package and channel count.