AMC3306M05DWE

ADCs/DACs - Special Purpose Overview

The AMC3306M05DWE is a high-precision, reinforced isolated delta-sigma modulator with an integrated DC/DC converter. It features a ±50-mV input range optimized for shunt-based current sensing. The device operates from a single 3.3-V or 5-V supply and provides 16-bit resolution with an 85-dB dynamic range at 78 kSPS using a sinc³ filter. Key electrical specifications include a maximum offset error of ±50 µV, gain error of ±0.2%, and common-mode transient immunity (CMTI) of 75 kV/µs. It offers 6000-V peak reinforced isolation certified to DIN VDE V 0884-11 and UL1577 standards.

ADCs/DACs - Special Purpose Feature Summary

• Integrated isolated DC/DC converter enables single-supply operation.
• ±50-mV differential input range optimized for low-side shunt current measurement.
• Reinforced isolation barrier rated at 6000-V peak and 1200-V RMS working voltage.
• Low EMI design compliant with CISPR-11 and CISPR-25 standards.

ADCs/DACs - Special Purpose Applications

• Protection relays
• Motor drives
• Power supplies
• Photovoltaic inverters

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix 'DWE' corresponds to the SOIC-16 package configuration. Confirm that the application environment meets the extended industrial temperature range requirements of –40°C to +125°C. Ensure compliance with safety certification limits regarding insulation thickness and creepage distances during PCB layout.

ADCs/DACs - Special Purpose Selection Notes

Select this component when space-constrained designs require an isolated ADC with an internal power converter. The ±50-mV input range suits applications using low-value shunt resistors. Verify that the required data rate does not exceed 78 kSPS for 16-bit resolution. Check that the system's common-mode voltage remains within the specified operating range relative to HGND.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AMC3306 family of precision isolated modulators. The 'M05' designation specifies the ±50-mV full-scale input range. The 'DWE' suffix indicates the 16-pin SOIC package. Other variants in the series may offer different input ranges or channel counts.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements must match the SOIC-16 footprint and pinout. Compatible alternatives include other Texas Instruments AMC33xx series devices with similar isolation ratings and input ranges, provided they support the same digital interface timing and power supply requirements.

ADCs/DACs - Special Purpose FAQ

What is the maximum supported clock frequency?

The input clock frequency (CLKIN) can range from 5 MHz to 21 MHz.

How is the high-side LDO utilized?

The high-side LDO output (HLDO_OUT) powers the internal circuitry on the high side. It supports external loads only up to 1 mA and temperatures up to 85°C.

What is the typical startup time?

The device startup time, defined as the time from VDD step to valid bitstream, is typically 1.4 ms.