AMC3336DWER

ADCs/DACs - Special Purpose Overview

The AMC3336DWER is a high-precision, reinforced isolated delta-sigma (ΔΣ) modulator with an integrated DC/DC converter. It features a ±1-V input range optimized for voltage measurements and offers low DC errors, including ±0.3 mV offset error and ±0.2% gain error. The device supports single-supply operation from the low side using 3.3 V or 5 V. It provides 16-bit resolution at 78 kSPS with an 85 dB dynamic range when decimated by a sinc³ filter. Reinforced capacitive isolation supports up to 1200 VRMS working voltage and 90 kV/µs CMTI.

ADCs/DACs - Special Purpose Feature Summary

• Integrated isolated DC/DC converter enables single-supply low-side operation
• Reinforced isolation rated at 1200 VRMS working voltage and 90 kV/µs CMTI
• High accuracy with ±0.3 mV max offset error and ±4 µV/°C drift
• Low EMI performance compliant with CISPR-11 and CISPR-25 standards

ADCs/DACs - Special Purpose Applications

• Isolated voltage sensing in motor drives
• Photovoltaic inverters
• Power delivery systems
• Protection relays

ADCs/DACs - Special Purpose Procurement Notes

Verify the DWE package designation corresponds to the 16-pin SOIC form factor. Confirm that the specific revision matches the April 2021 datasheet release. Ensure procurement channels provide documentation supporting the UL1577 and DIN VDE V 0884-11 safety certifications required for system integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring direct connection to high-impedance voltage sources without external high-side power supplies. The integrated DC/DC converter simplifies design but requires adherence to specific layout guidelines for the HLDO_OUT and DCDC_OUT pins. Verify that the external digital filter can achieve the necessary OSR for the target data rate and resolution.

ADCs/DACs - Special Purpose Part Context

The AMC3336 belongs to Texas Instruments' family of isolated delta-sigma modulators designed for precision measurement. Unlike standard isolators, it combines signal conditioning with power conversion on-chip. This integration distinguishes it from discrete solutions, offering a compact footprint suitable for space-constrained industrial and energy monitoring equipment.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.