AMC1303E2520DWV

ADCs/DACs - Special Purpose Overview

The AMC1303E2520DWV is an isolated delta-sigma modulator from Texas Instruments, designed for precision current sensing applications. It features a reinforced isolation barrier capable of withstanding high voltage transients, making it suitable for industrial and energy monitoring systems. The device accepts a differential input signal range of ±250 mV and provides a 16-bit resolution output. It operates on a single supply voltage ranging from 2.7 V to 5.5 V for both analog and digital domains. The component utilizes a CMOS serial interface for data transmission and is housed in an 8-SOIC package.

ADCs/DACs - Special Purpose Feature Summary

• Reinforced isolation barrier rated for high working voltages
• 16-bit resolution with integrated delta-sigma modulation
• ±250 mV differential input range optimized for shunt-based current sensing
• CMOS serial output interface compatible with standard microcontrollers

ADCs/DACs - Special Purpose Applications

• Industrial motor drives and inverters
• Power supply current monitoring
• Energy metering and smart grid equipment
• Solar inverter current sensing

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'DWV' against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure that the design supports the required isolation voltage ratings for the target application environment. Cross-reference the pinout diagram with the PCB footprint to prevent assembly errors during integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a high-precision, digitally isolated solution is required for low-voltage shunt measurements. The ±250 mV input range dictates the maximum shunt voltage drop, influencing power loss calculations. Consider the 78 kSPS effective sampling rate and the need for external decimation filters or sigma-delta ADCs to process the modulated output stream effectively.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AMC1303 family of isolated delta-sigma modulators. Variants within the family differ primarily by input range (e.g., ±50 mV, ±250 mV) and gain settings (e.g., 1 V/V, 20 V/V). The E2520 designation specifically indicates the ±250 mV input capability and a gain of 20 V/V, distinguishing it from other models like the AMC1303E2510.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements include other AMC1303 variants with matching input ranges and gains, such as the AMC1303E2510 if gain adjustments are acceptable. For non-isolated alternatives, check for compatible ADCs with similar resolution and speed, though isolation requirements must be addressed separately.