AMC1305L25DW

ADCs/DACs - Special Purpose Overview

The AMC1305L25DW is a high-precision, reinforced isolated delta-sigma modulator manufactured by Texas Instruments. It features a differential input range of ±250 mV and utilizes an LVDS interface for digital output. The device operates with an analog supply voltage between 4.5 V and 5.5 V and a digital supply voltage between 3 V and 5.5 V. It provides 16-bit resolution with a typical signal-to-noise ratio (SNR) of 85 dB. The component is housed in a 16-pin SOIC package and supports data rates up to 78 kS/s at maximum clock frequencies of 20.1 MHz.

ADCs/DACs - Special Purpose Feature Summary

• Reinforced isolation capability with minimum common-mode transient immunity (CMTI) of 15 kV/µs
• LVDS digital interface for robust noise immunity in high-interference environments
• 16-bit resolution with 85 dB SNR and 92 dB SFDR performance
• ±250 mV differential input range suitable for shunt-based current sensing

ADCs/DACs - Special Purpose Applications

• Isolated current sensing in motor drives and inverters
• Grid-tied solar microinverters and string inverters
• High-voltage metering and energy monitoring systems
• Industrial process control and automation equipment

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'DW' confirms the tube packaging format rather than tape-and-reel. Confirm that the LVDS interface variant matches system requirements, as CMOS interface alternatives exist within the same family. Ensure compliance with RoHS standards and check for automotive qualification if deploying in AEC-Q100 required environments.

ADCs/DACs - Special Purpose Selection Notes

Select this model when LVDS signaling is preferred over CMOS for improved noise tolerance in noisy industrial settings. Compare power consumption metrics against the CMOS variant (AMC1305M25), as the LVDS version typically exhibits higher quiescent current. Ensure the host system can support the required 20.1 MHz clock frequency for optimal modulation performance.

ADCs/DACs - Special Purpose Part Context

This component belongs to the AMC1305x family of reinforced isolated delta-sigma modulators. It shares architectural similarities with the AMC1305M25 but differs primarily in its digital output interface. While the M-series uses CMOS logic levels, the L-series employs LVDS drivers, offering distinct trade-offs between power efficiency and signal integrity over longer traces or in electrically noisy environments.

ADCs/DACs - Special Purpose Replacement Considerations

The AMC1305M25DW serves as a functional alternative if LVDS drivers are not strictly necessary, offering lower power consumption. For automotive applications requiring AEC-Q100 qualification, consider the AMC1305L25QDWQ1 variant which maintains the LVDS interface while meeting automotive reliability standards.