AMC1203BDW

Analog To Digital Converters (ADC) Overview

The AMC1203BDW is a second-order, isolated delta-sigma modulator manufactured by Texas Instruments. It features a 1-bit output with a data rate of 10 MHz and provides 16-bit resolution equivalent performance. The device operates on dual power supplies ranging from 4.5 V to 5.5 V for both analog and digital sections. Key electrical specifications include a signal-to-noise ratio (SNR) of 85 dB, a spurious-free dynamic range (SFDR) of 95 dB, and a differential nonlinearity (DNL) of ±1 LSB. It supports a sampling rate of 40 kS/s with an internal reference and consumes 80 mW of typical power. The component is housed in a 16-pin SOIC package and functions within a temperature range of -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates galvanic isolation with a second-order sigma-delta modulation architecture for high-precision current-shunt measurement applications.
• Utilizes an internal voltage reference to simplify system design and reduce external component count.
• Provides a serial 1-bit output interface compatible with standard digital logic for direct connection to microcontrollers or DSPs.

Analog To Digital Converters (ADC) Applications

• High-voltage current sensing in motor drives and inverters
• Isolated data acquisition systems requiring high accuracy
• Industrial process control instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix BDW corresponds to the tube packaging format when ordering. Confirm the revision level matches the target design requirements. Ensure supply chain sources provide original manufacturer documentation. Check for moisture sensitivity labeling prior to surface mount assembly. Validate that the procurement channel is authorized to prevent counterfeit components.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, high-speed isolated modulator is required for shunt-based current monitoring. Compare SNR and SFDR metrics against system noise floor requirements. Ensure the 10 MHz output data rate aligns with the downstream decimation filter capabilities. Verify that the 16-pin SOIC footprint fits the PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AMC1203 family of isolated delta-sigma modulators designed for precision measurement. It complements other variants like the AMC1200 series amplifiers by offering higher bandwidth and digital output integration. The device addresses the need for robust isolation in noisy industrial environments while maintaining signal integrity.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes may include other TI AMC1203 variants with different packaging options such as the AMC1203DW. Cross-reference pinouts and electrical characteristics carefully before substitution. Verify compatibility with existing firmware if digital interface timing changes between revisions.