AMC1304L05QDWRQ1

ADCs/DACs - Special Purpose Overview

The AMC1304L05QDWRQ1 is an automotive-grade, reinforced isolated delta-sigma modulator from Texas Instruments. It features a ±50-mV differential input range and LVDS digital interface. The device provides up to 7000-VPK reinforced isolation via a capacitive double barrier. An integrated LDO regulator accepts 4 V to 18 V on the high side, while the controller side operates at 3.0 V to 5.5 V. It achieves 16-bit resolution with a dynamic range of 81 dB at 78 kSPS using a sinc3 filter.

ADCs/DACs - Special Purpose Feature Summary

• AEC-Q100 qualified for Grade 1 (-40°C to +125°C)
• ±50-mV input range with 5-kΩ differential resistance
• LVDS digital output interface
• Integrated 18-V LDO regulator (4 V to 18 V input)

ADCs/DACs - Special Purpose Applications

• Shunt-based current sensing in traction inverters
• Resistor-divider-based voltage sensing in onboard chargers
• Isolated measurement in DC-DC converters
• Battery management systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and interface configuration. Ensure compliance with AEC-Q100 requirements for automotive deployment. Check datasheet insulation specifications for safety certification alignment.

ADCs/DACs - Special Purpose Selection Notes

Select this model for applications requiring direct connection to low-voltage shunts or sensors. The LVDS interface supports high-speed data transmission up to 20.1 MHz. Verify that the system clock frequency falls within the 5 MHz to 20.1 MHz operating range.

ADCs/DACs - Special Purpose Part Context

This component belongs to the AMC1304x-Q1 family of high-precision isolated modulators. It shares pin compatibility with variants offering different input ranges (±50 mV or ±250 mV) and digital interfaces (CMOS or LVDS). The 'L' designation indicates the LVDS interface version.

ADCs/DACs - Special Purpose Replacement Considerations

Pin-compatible alternatives include AMC1304M05QDWRQ1 (CMOS interface), AMC1304L25QDWRQ1 (±250 mV input), and AMC1304M25QDWRQ1 (CMOS/±250 mV). Verify interface logic levels when substituting CMOS for LVDS versions.

ADCs/DACs - Special Purpose FAQ

What is the maximum input clock frequency?

The external clock input frequency ranges from 5 MHz to 20.1 MHz.

How does the device handle common-mode transients?

The device offers a minimum common-mode transient immunity (CMTI) of 15 kV/µs.

What is the typical offset error at 25°C?

The typical offset error is ±2.5 µV, with a maximum specification of ±50 µV.