ATSENSE301A-AN

Analog Front End (AFE) Overview

The ATSENSE301A-AN is a seven-channel analog front end (AFE) designed for poly-phase energy metering. It integrates three simultaneously sampled Sigma-Delta A/D converters, a precision voltage reference with 50 ppm/°C temperature drift, and an SPI interface. The device supports shunt, current transformer, and Rogowski coil inputs with programmable pre-gain. It operates on a single 3.0V to 3.6V supply, consuming less than 2.5 mW per channel. The component is housed in a 32-lead TQFP package.

Analog Front End (AFE) Feature Summary

• Seven simultaneous sampling channels: three voltage and four current inputs
• Compliant with Class 0.2 standards (ANSI C12.20-2002 and IEC 62053-22)
• Integrated 2.8V LDO regulator and 1.2V voltage reference
• Programmable gain amplifiers (x1, x2, x4, x8) for current channels

Analog Front End (AFE) Applications

• Poly-phase smart meters
• Energy measurement systems
• Data acquisition applications requiring high accuracy

Analog Front End (AFE) Procurement Notes

Verify the specific ordering suffix 'AN' against the manufacturer's official documentation to confirm package type and temperature range specifications. Ensure compatibility with the required SPI interface settings and power supply voltages before procurement.

Analog Front End (AFE) Selection Notes

Select this component for poly-phase applications requiring seven synchronized measurement channels. Verify that the system design accommodates the 32-TQFP package dimensions and the 3.0V to 3.6V digital supply voltage range.

Analog Front End (AFE) Part Context

This part belongs to the ATSENSE family of multi-channel analog front ends. It is specifically the poly-phase variant (ATSENSE-301), distinct from the single-phase (ATSENSE-101) and dual-phase (ATSENSE-201) models within the same series.

Analog Front End (AFE) Replacement Considerations

Direct replacements include other variants within the ATSENSE-301(H) family, such as ATSENSE301HA-AU, provided the pinout and functional specifications match the application requirements.