INA381A4IDGST

Current Regulation/Management Overview

The INA381A4IDGST is a dual-channel, high-speed current sense amplifier manufactured by Texas Instruments. It features a fixed gain of 200 V/V and supports a maximum common-mode voltage of 26 V with a supply range of 2.7 V to 5.5 V. The device offers a bandwidth of 105 kHz and a minimum common-mode rejection ratio of 100 dB. It operates within a temperature range of -40°C to +125°C and is housed in a 10-pin VSSOP package.

Current Regulation/Management Feature Summary

• Dual-channel architecture for simultaneous bidirectional current monitoring
• Integrated over-current comparator for rapid fault detection
• High common-mode voltage tolerance up to 26 V
• Low input offset voltage for precise measurement accuracy

Current Regulation/Management Applications

• Industrial motor control systems
• Power supply current monitoring
• Battery management systems
• Over-current protection circuits

Current Regulation/Management Procurement Notes

Verify the specific suffix IDGST corresponds to the VSSOP-10 package variant when sourcing. Confirm that the A-grade designation meets your required offset voltage specifications. Ensure compatibility with your board's thermal management requirements given the operating temperature range. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component for applications requiring dual-channel sensing with high common-mode voltage tolerance. The fixed 200 V/V gain suits low-side or high-side shunt monitoring where signal amplification is critical. Consider the 105 kHz bandwidth for dynamic load conditions. Evaluate the integrated comparator functionality against external logic solutions to simplify circuit design.

Current Regulation/Management Part Context

This part belongs to the INA381 family of current sense amplifiers from Texas Instruments. The series is designed for cost-effective, high-performance current monitoring in industrial and automotive environments. The dual-channel variant provides space savings compared to using two single-channel devices.

Current Regulation/Management FAQ

Is the INA381A4IDGST capable of bidirectional current sensing?

Yes, the device supports bidirectional current sensing as indicated by its product classification.

What is the fixed voltage gain of this amplifier?

The INA381A4IDGST has a fixed voltage gain of 200 V/V.