INA2180A3IDGKT

Overview

The INA2180A3IDGKT is a dual-channel current-sense amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and supports bidirectional current sensing with a common-mode voltage range extending up to 26 V. The device features a fixed gain of 100 V/V, a bandwidth of 105 kHz, and an input offset voltage of 100 µV. Packaged in an 8-VSSOP format, it functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Supports bidirectional current measurement for flexible system design
• Provides high accuracy through low input offset voltage specifications
• Enables direct connection to microcontrollers via rail-to-rail output

Applications

• Battery management systems requiring precise cell monitoring
• Industrial process control equipment with multiple sensor inputs
• White goods and appliance power management circuits

Procurement Notes

Verify the specific suffix 'A3' indicates the fixed 100 V/V gain configuration during procurement. Confirm the 'KT' suffix corresponds to the VSSOP-8 tape and reel packaging variant. Ensure compatibility with the target board's thermal dissipation requirements given the small surface-mount package dimensions.

Selection Notes

Select this component when a dual-channel solution is required for space-constrained designs. The 100 V/V gain offers a balance between signal amplification and dynamic range. Consider the 105 kHz bandwidth sufficient for most low-frequency sensing applications. Verify that the 26 V common-mode voltage range covers the maximum bus voltage present in the application circuit.

Part Context

This part belongs to the INA2180 family of dual-channel current-sense amplifiers. It shares architectural similarities with single-channel variants but integrates two independent sensing channels into one package. The series is designed for cost-sensitive applications requiring moderate precision without the complexity of programmable gain amplifiers.

Replacement Considerations

Check for INA2180A3IDGKR as a potential alternative if reel packaging is preferred over cut tape. Single-channel equivalents like the INA2181 may be considered if only one channel is needed, though pinout differences must be evaluated.