AMC1305M25DWR

ADCs/DACs - Special Purpose Overview

The AMC1305M25DWR is a reinforced isolated sigma-delta modulator manufactured by Texas Instruments. It features a single channel with a ±250 mV input range and CMOS serial interface. The device operates on dual power supplies: analog supply from 4.5 V to 5.5 V and digital supply from 3 V to 5.5 V. Key electrical parameters include a resolution of 16 bits, a maximum sampling rate of 78 kS/s, and a typical power consumption of 36.1 mW. It provides a minimum common-mode transient immunity (CMTI) of 15 kV/µs and supports an operating temperature range from -40°C to +125°C in a 16-pin SOIC package.

ADCs/DACs - Special Purpose Feature Summary

• Reinforced isolation with 7 kV peak voltage rating
• High common-mode transient immunity of 15 kV/µs
• 16-bit resolution with 85 dB SNR and 92 dB SFDR
• CMOS-compatible serial output interface

ADCs/DACs - Special Purpose Applications

• Isolated current sensing using shunt resistors
• Gate driver feedback loops
• Industrial process control systems
• Motor drive applications

ADCs/DACs - Special Purpose Procurement Notes

Verify the suffix 'DWR' confirms the tape-and-reel packaging format and SOIC-16 body style. Confirm the 'M25' designation matches the required ±250 mV input range and CMOS interface for the specific design. Ensure the component meets RoHS compliance standards as indicated in public documentation.

ADCs/DACs - Special Purpose Selection Notes

Select this model when a ±250 mV input range is required for high-side or low-side current sensing. The CMOS interface simplifies connection to standard microcontrollers or DSPs compared to LVDS options. Verify that the 78 kS/s data rate and 15 kV/µs CMTI meet the system's noise and speed requirements.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AMC1305 family of isolated modulators. It shares the same core architecture and isolation specifications as the AMC1305M25DW but differs in packaging. The 'DWR' suffix indicates reel packaging suitable for automated surface-mount assembly, whereas 'DW' denotes tube packaging.

ADCs/DACs - Special Purpose Replacement Considerations

The AMC1305M25DW is a direct functional equivalent with identical electrical characteristics but uses tube packaging instead of tape-and-reel. For automotive applications, the AMC1305M25QDWRQ1 offers AEC-Q100 qualification.