INA2180A2IDSGR

Overview

The INA2180A2IDSGR is a dual-channel current-sense amplifier from Texas Instruments. It features a fixed gain of 50 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. Key electrical characteristics include a maximum offset voltage of ±500 µV at 12 V common-mode voltage, a bandwidth of 210 kHz, and a quiescent current of 500 µA maximum. It is housed in an 8-pin WSON package.

Feature Summary

• Integrates a matched resistor network to minimize gain error and reduce temperature drift
• Supports both high-side and low-side current sensing configurations
• Provides rail-to-rail output swing capability

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 A2 designation matches the required 50 V/V gain setting for your circuit design. Ensure compatibility with the specified operating temperature range of –40°C to +125°C.

Selection Notes

Select this component when a dual-channel solution is required for cost-optimized current monitoring applications. The 50 V/V gain option offers a balance between sensitivity and dynamic range. Consider the 210 kHz bandwidth for applications requiring moderate response speeds without the higher power consumption of wider bandwidth devices.

Part Context

This part 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 applications requiring accurate current measurement across shunt resistors at common-mode voltages up to 26 V.

FAQ

What is the maximum common-mode voltage supported by the INA2180A2IDSGR?

The device supports a common-mode input voltage range from –0.2 V to +26 V.

How does the A2 suffix affect the device performance?

The A2 suffix indicates a fixed internal gain of 50 V/V, distinguishing it from other gain options like 20 V/V or 100 V/V within the same family.