ATM90E32AS-AU-R

Overview

The ATM90E32AS-AU-R is a poly-phase energy metering IC featuring six independent second-order sigma-delta ADCs. It supports dynamic ranges up to 6000:1 with measurement errors of 0.1%. The device operates within a supply current of 13mA and functions across temperatures from -40°C to 85°C. It utilizes a 48-pin TQFP package in tape and reel format, offering SPI interface and pulse output capabilities for precise multi-phase power monitoring.

Feature Summary

• Incorporates six independent second-order sigma-delta analog-to-digital converters for high-precision signal acquisition
• Provides enhanced wide-span energy metering performance suitable for complex poly-phase applications
• Supports gain selection up to 4x to accommodate varying input signal levels

Applications

• Poly-phase energy metering systems
• High-performance power monitoring devices
• Smart grid infrastructure components

Procurement Notes

Verify the specific suffix 'AU-R' confirms the 48-TQFP surface-mount package and tape-and-reel delivery format. Ensure compatibility with the required operating temperature range of -40°C to 85°C. Confirm that the SPI interface and pulse output options align with the target system's communication requirements before finalizing procurement.

Selection Notes

Select this component when high accuracy and wide dynamic range are critical for poly-phase measurements. The integrated sigma-delta ADCs reduce external filtering needs. Consider the 48-pin TQFP footprint for PCB layout constraints. Verify that the 13mA supply current fits the system's power budget and thermal management strategy.

Part Context

This part belongs to Microchip's ATM90E series of energy metering integrated circuits. These devices are designed for accurate electricity consumption tracking in residential and commercial settings. The ATM90E32 variant specifically targets poly-phase applications requiring multiple simultaneous channel measurements with high resolution.

Replacement Considerations

Consult official Microchip documentation for direct pin-compatible substitutes within the ATM90E family. Verify functional equivalence regarding ADC count and interface protocols before considering alternative vendors.