INA381A3IDSGT

Current Regulation/Management Overview

The INA381A3IDSGT is a low-cost, zero-drift, voltage-output current-shunt monitor manufactured by Texas Instruments. It features an integrated over-current comparator and supports high-side or low-side sensing with a common-mode voltage range of 0 V to 26 V. The device offers a gain of 50 V/V, a bandwidth of 105 kHz, and a maximum input offset voltage of 150 µV. It operates within a supply voltage range of 2.7 V to 5.5 V and functions across an extended temperature range from -40 °C to +125 °C. The component is housed in an 8-WSON package.

Current Regulation/Management Feature Summary

• Zero-drift architecture ensures high precision with minimal offset voltage drift over temperature variations.
• Integrated over-current comparator provides alert functionality for fault detection without external components.
• Supports both high-side and low-side current sensing configurations within the specified common-mode voltage range.

Current Regulation/Management Applications

• Battery management systems
• Industrial process control
• Power supply monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix IDSGT corresponds to the 8-WSON package and tape-and-reel packaging configuration. Confirm RoHS compliance and lead times directly with authorized distributors. Ensure the ordering part number matches the required gain variant (A3 indicates 50 V/V) and comparator threshold specifications before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component when high accuracy is required in space-constrained designs due to its small WSON footprint. The zero-drift technology makes it suitable for applications demanding stable performance over wide temperature ranges. Consider the 105 kHz bandwidth and integrated comparator for cost-sensitive current monitoring solutions where external protection circuitry must be minimized.

Current Regulation/Management Part Context

This device belongs to the INA381 family of current sense amplifiers designed for general-purpose current monitoring. It complements other Texas Instruments precision amplifiers by offering a balance of low cost, high accuracy, and integrated fault detection capabilities. The family targets applications requiring reliable shunt-based current measurement in industrial and consumer electronics environments.

Current Regulation/Management Replacement Considerations

INA381A3IDGSR is a compatible alternative with identical electrical characteristics but differs in packaging format as a VSSOP-10 reel option rather than the WSON form factor.