AMC1200SDUBR

Overview

The AMC1200SDUBR is a fully-differential isolation amplifier manufactured by Texas Instruments. It utilizes a silicon dioxide (SiO2) barrier to provide galvanic isolation between input and output circuits, offering high electromagnetic interference immunity. The device features a fixed gain of 8 V/V with 0.5% accuracy and an input voltage range optimized for shunt resistors at ±250 mV. Key electrical specifications include a 100 kHz bandwidth, 4 kV peak isolation voltage, and a supply current of 5.4 mA. It operates within a temperature range of -40°C to +105°C and is housed in an 8-pin SOP package.

Feature Summary

• Galvanic isolation via silicon dioxide barrier for high electromagnetic interference immunity
• Fixed gain of 8 V/V with low offset error and low noise characteristics
• Input range optimized for direct connection to shunt resistors
• Fully differential output configuration

Applications

• Shunt-based current sensing in motor control systems
• Green energy applications including solar inverters
• Variable frequency drives
• Uninterruptible power supplies

Procurement Notes

Verify the specific suffix 'SDUBR' indicates tape-and-reel packaging rather than tube packaging when reviewing distributor listings. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process standards. Ensure the ordering part number matches the exact isolation rating and package type required for your design.

Selection Notes

Select this component for designs requiring precise current measurement in noisy environments where galvanic isolation is critical. The fixed gain simplifies circuit design compared to programmable alternatives. Consider the 100 kHz bandwidth limit when evaluating signal frequencies. Verify that the ±250 mV input range aligns with your shunt resistor voltage drop expectations under maximum load conditions.

Part Context

The AMC1200 belongs to Texas Instruments' family of precision isolation amplifiers designed for industrial and automotive applications. It serves as a robust solution for isolating low-level analog signals from high-voltage domains. The SDUBR variant specifically denotes the surface-mount SOP-8 package with reel packaging, distinguishing it from tube-packaged counterparts like the SDUB.

Replacement Considerations

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