AMC1200BDWV

Overview

The AMC1200BDWVR is a fully-differential isolation amplifier manufactured by Texas Instruments, designed for precision current sensing applications. It utilizes a silicon dioxide (SiO2) barrier to isolate input and output circuits, providing high magnetic immunity. The device features a fixed gain of 8 V/V with 0.5% accuracy and an optimized ±250-mV input voltage range suitable for shunt resistors. Key electrical parameters include a maximum offset error of 1.5 mV, typical noise of 3.1 mV RMS, and a minimum input bandwidth of 60 kHz. It operates on low-side power supplies ranging from 2.7 V to 5.5 V, with a maximum supply current of 8 mA at 5 V. The component offers a common-mode rejection ratio of 108 dB and transient immunity of at least 10 kV/µs.

Feature Summary

• High-precision signal amplification with fixed gain and low offset error
• Robust isolation via silicon dioxide barrier with high magnetic immunity
• Optimized input range for direct connection to shunt resistors
• Low power consumption suitable for energy-sensitive designs

Applications

• Motor control systems requiring precise current regulation
• Green energy inverters and converters
• Uninterruptible power supply (UPS) monitoring
• Industrial variable frequency drives

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required isolation voltage rating and temperature grade. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Cross-reference the manufacturer's latest datasheet revision to validate all electrical characteristics and mechanical dimensions.

Selection Notes

Select this component when high accuracy in current sensing is critical for system efficiency. The fixed gain simplifies design calculations compared to programmable alternatives. Consider the low supply current for battery-operated or thermally constrained environments. Verify that the input signal range aligns with the ±250 mV specification for optimal linearity.

Part Context

This device belongs to the AMC1200 family of fully-differential isolation amplifiers. It shares core architectural similarities with other members like the AMC1200B and AMC1200Q1, differing primarily in qualification standards and specific isolation ratings. The family is engineered to replace traditional optocoupler-based solutions in high-performance industrial applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.