INA381A1IDGSR

Current Regulation/Management Overview

The INA381A1IDGSR is a single-channel current sense amplifier from Texas Instruments, housed in a VSSOP-10 package. It operates on a supply voltage ranging from 2.7 V to 5.5 V with a maximum common-mode voltage of 26 V. The device features a fixed gain of 2 V/V and a 3 dB bandwidth of 350 kHz. Key electrical specifications include a typical input offset voltage of 100 uV, an input bias current of 80 uA, and a quiescent current of 350 uA. It offers a common-mode rejection ratio of 100 dB and a gain error of 0.1%. The component supports an operating temperature range from -40 C to +125 C.

Current Regulation/Management Feature Summary

• Integrates an over-current comparator for real-time fault detection alongside amplification
• Supports both high-side and low-side current sensing configurations
• Utilizes zero-drift architecture to minimize offset voltage and drift errors

Current Regulation/Management Applications

• Battery management systems
• Industrial process control monitoring
• Over-current protection circuits

Current Regulation/Management Procurement Notes

Verify the specific suffix IDGSR corresponds to the VSSOP-10 package and tape-and-reel shipping format. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly line. Ensure the ordering part number matches the exact gain and comparator configuration intended for your design.

Current Regulation/Management Selection Notes

Select this component when a fixed 2 V/V gain and integrated comparator are required within a compact surface-mount footprint. Consider the 350 kHz bandwidth and 350 uA quiescent current for power-sensitive applications. Evaluate the 26 V common-mode voltage capability against your system's rail voltages.

Current Regulation/Management Part Context

This device belongs to the INA381 family of current sense amplifiers. The family provides integrated solutions combining precision amplification with built-in fault detection capabilities. The INA381 series is designed for applications requiring accurate current monitoring and immediate response to over-current events without external comparator components.

Current Regulation/Management Replacement Considerations

INA381A1IDGST is a pin-compatible alternative in a TSSOP package.