ATSENSE201HA-AUR

Analog Front End (AFE) Overview

The ATSENSE201HA-AUR is a dual-phase analog front end (AFE) designed for energy metering applications. It integrates four simultaneously sampled Sigma-Delta A/D converters, including two voltage and two current channels, alongside a high-precision voltage reference with 10 ppm/°C temperature stability. The device features programmable current signal amplification, an integrated die temperature sensor, and an SPI interface. Operating within a 3.0V to 3.6V supply range, it consumes less than 2.5 mW per channel at 3.3V. The component meets ANSI C12.20-2002 and IEC 62053-22 Class 0.2 standards over a 3000:1 current range.

Analog Front End (AFE) Feature Summary

• Dual-phase energy metering with four simultaneous Sigma-Delta ADC channels
• High-precision voltage reference with 10 ppm/°C typical temperature drift
• Programmable gain amplifiers (x1, x2, x4, x8) for current channels
• Integrated 2.8V LDO regulator and die temperature sensor

Analog Front End (AFE) Applications

• Dual-phase smart meters
• Data acquisition systems requiring high accuracy
• Energy measurement devices compliant with Class 0.2 standards

Analog Front End (AFE) Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with the intended microcontroller family, such as the ATSAM4C series, for optimal metrology library integration. Confirm humidity sensitivity handling requirements during storage and assembly.

Analog Front End (AFE) Selection Notes

Select this model for dual-phase applications requiring simultaneous sampling of two voltage and two current signals. The 'H' designation indicates enhanced voltage reference stability suitable for high-accuracy metering. Ensure the design supports the required 3.0V to 3.6V operating voltage and accommodates the 32-lead TQFP or 20-lead SOIC package options available in the family.

Analog Front End (AFE) Part Context

This component belongs to the ATSENSE family, which includes single-phase (ATSENSE-101) and poly-phase (ATSENSE-301) variants. The ATSENSE201HA-AUR specifically targets dual-phase configurations. It is designed to work in conjunction with Microchip MCUs featuring dedicated Cortex-M4 processors and metrology libraries to achieve high-precision energy measurement.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.