INA2180A3IDSGT

Overview

The INA2180A3IDSGT is a dual-channel current-sense amplifier manufactured by Texas Instruments. It operates from a single supply voltage ranging from 2.7 V to 5.5 V and supports common-mode input voltages from –0.2 V to +26 V, independent of the supply voltage. The device features a fixed gain of 100 V/V, a bandwidth of 150 kHz, and an output slew rate of 2 V/µs. Electrical specifications include a maximum offset voltage of ±500 µV at a common-mode voltage of 12 V, a maximum quiescent current of 500 µA, and operation over an extended temperature range of –40°C to +125°C.

Feature Summary

• Supports high-side and low-side sensing with a common-mode voltage range extending up to 26 V
• Integrates a matched resistor network for a fixed gain of 100 V/V to minimize gain error and temperature drift
• Provides high bandwidth and fast slew rates for accurate detection of rapid current changes

Applications

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

Procurement Notes

Verify that the specific part number matches the required package type and gain configuration. Confirm the revision level against the latest datasheet documentation. Ensure compatibility with the target operating temperature range and supply voltage requirements before finalizing procurement decisions.

Selection Notes

Select this component when a dual-channel solution is required for sensing currents on rails up to 26 V. The fixed 100 V/V gain is suitable for applications requiring higher signal amplification without external resistors. Consider the 150 kHz bandwidth and 500 µA quiescent current for power-sensitive designs needing moderate speed.

Part Context

This device 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. These devices are designed for cost-optimized applications requiring accurate current measurement across shunt resistors.

Replacement Considerations

Compatible substitutes within the same family include INA2180A1IDSGT (20 V/V gain), INA2180A2IDSGT (50 V/V gain), and INA2180A4IDSGT (200 V/V gain). Single-channel alternatives are available as INA180A3IDR or INA180A3DBVR.