INA2180A1IDGKR

Overview

The INA2180A1IDGKR is a dual-channel current-sense amplifier manufactured by Texas Instruments. It features a fixed gain of 200 V/V and operates within a supply voltage range of 2.7 V to 5.5 V. The device supports bidirectional current sensing with a common-mode voltage range extending from -0.2 V to +26 V. Key electrical specifications include an input offset voltage of 100 µV, a bandwidth of 350 kHz, and a quiescent current of 355 µA per channel. It provides rail-to-rail output capability and is housed in an 8-VSSOP package.

Feature Summary

• Dual-channel architecture for simultaneous multi-point monitoring
• Wide common-mode voltage range supporting high-side or low-side configurations
• Fixed internal gain simplifies external component selection
• Rail-to-rail output interface compatible with standard ADCs

Applications

• Battery management systems in portable devices
• Overcurrent protection circuits in industrial equipment
• Current monitoring in motor control applications
• Power distribution unit (PDU) load balancing

Procurement Notes

Verify the specific suffix 'A1' against the manufacturer's latest datasheet to confirm the exact gain tolerance and offset voltage grade. Ensure the 8-VSSOP package dimensions match the target PCB footprint. Confirm RoHS compliance status and moisture sensitivity level requirements for the assembly process before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel solution is required for cost-sensitive current monitoring applications. The fixed 200 V/V gain is suitable for detecting small voltage drops across low-value shunt resistors. Consider the 350 kHz bandwidth for applications requiring moderate response speeds without excessive noise filtering complexity.

Part Context

This part belongs to the INA2180 family of precision current-sense amplifiers. The family is designed to provide accurate DC and AC current measurements in space-constrained environments. The INA2180 series typically offers improved accuracy and lower power consumption compared to previous generations of discrete current-sensing solutions.

Replacement Considerations

Check for pin-compatible alternatives such as the INA2180A4 variants if different gain tolerances are needed. Verify that any substitute maintains the same 8-VSSOP package and operating temperature range.