AMC1302DWV

Overview

The AMC1302DWV is a precision isolated amplifier manufactured by Texas Instruments, designed for high-voltage current sensing and power management applications. It features a ±50-mV input range with a fixed gain of 8.2 V/V. The device provides galvanic isolation with an insulation voltage of 5000 Vrms and a common-mode rejection ratio (CMRR) of 100 dB. It operates on a single supply voltage between 4.5 V and 5.5 V, consuming typical supply currents of 5.9 mA or 7.2 mA depending on the configuration. The component supports a 3-dB bandwidth of 230 kHz and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides reinforced galvanic isolation for safe measurement in high-voltage environments
• Delivers high accuracy with low input offset voltage and minimal gain error
• Features differential output suitable for direct interface with ADCs

Applications

• High-side current sensing in motor drives
• Power supply monitoring and control
• Industrial automation systems requiring precise current measurement

Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to ensure correct packaging and tape-and-reel specifications. Confirm that the insulation rating meets the safety requirements of the target application. Check for any recent product change notices regarding assembly materials or wafer fab sites to ensure long-term availability and consistency.

Selection Notes

Select this component when a ±50-mV input range is required for accurate current sensing. Compare against the AMC1300 if a wider ±250-mV input range is acceptable. Ensure the system design accommodates the 5.5 V maximum supply voltage and the SOIC-8 package constraints. Verify that the 230 kHz bandwidth aligns with the signal frequency requirements of the application.

Part Context

The AMC1302 belongs to the AMC130x family of high-voltage isolated amplifiers from Texas Instruments. This series utilizes capacitive isolation technology to provide robust signal transmission across isolation barriers. The DWV suffix indicates a specific tube packaging option within the SOIC-8 footprint, distinguishing it from reel-based variants like the DWVR.

Replacement Considerations

The AMC1300DWV serves as a functional substitute if a ±250-mV input range is permissible. The PAMC1302 offers similar performance with additional programmable gain capabilities. Verify pin compatibility and isolation voltage ratings before substituting.