AMC1203BDWR

Analog To Digital Converters (ADC) Overview

The AMC1203BDWR is a second-order isolated delta-sigma modulator manufactured by Texas Instruments. It features a 1-bit output operating at a high-frequency carrier of 20 MHz, designed for current-shunt measurement applications. The device integrates an internal reference and operates with analog and digital supply voltages ranging from 4.5 V to 5.5 V. It supports differential input signals and provides serial data output. The component is housed in a 16-pin SOIC package (DW) and is rated for operation within a temperature range of -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates isolation barrier for safe signal transmission between primary and secondary sides
• Utilizes second-order sigma-delta modulation architecture for high-resolution data conversion
• Includes internal voltage reference to simplify external circuit design
• Supports differential input configuration for accurate shunt current sensing

Analog To Digital Converters (ADC) Applications

• Current-shunt measurement in industrial automation systems
• Isolated data acquisition channels in energy metering equipment
• Motor control feedback loops requiring galvanic isolation
• Power supply monitoring circuits with high common-mode voltage rejection

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix BDWR against official Texas Instruments documentation to confirm the tape-and-reel packaging format and temperature grade. Ensure compatibility with existing PCB footprints for the 16-SOIC package. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing isolated current sensing circuits that require a 20 MHz modulator output for downstream digital filtering. Compare performance metrics such as SNR and power consumption against alternative models like the AMC1203BPSA if different packaging or pinout configurations are required. Verify that the system can accommodate the necessary isolation voltage ratings and thermal management for the SOIC-16 package.

Analog To Digital Converters (ADC) Part Context

The AMC1203BDWR belongs to the AMC1203 family of isolated delta-sigma modulators from Texas Instruments. This series is engineered specifically for applications demanding high accuracy and robust isolation in noisy electrical environments. The BDWR variant denotes the specific surface-mount packaging and commercial/industrial temperature range options available within the broader product line.

Analog To Digital Converters (ADC) Replacement Considerations

The AMC1203BPSA serves as a functional equivalent within the same family, offering identical electrical characteristics but utilizing an 8-pin SOP package instead of the 16-pin SOIC. Designers must account for significant footprint and pinout differences when substituting these parts.