MAX71020

Single-Chip Electricity Meter AFE

Proven Teridian Metrology in an AFE Allows the Use of Micro for Electricity Metering

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Part Details

  • 0.1% Accuracy Over 2000:1 Current Range
  • Exceeds IEC 62053/ANSI C12.20 Standards
  • Two Differential Current Sensor Inputs
  • Two Voltage Sensor Inputs
  • Selectable Gain of 1 or 8.9 for One Current Input to Support a Shunt
  • High-Speed Wh/VARh Pulse Outputs with Programmable Width
  • Up to Four Pulse Outputs with Pulse Count
  • Four-Quadrant Metering
  • Digital Temperature Compensation
  • Independent 32-Bit Compute Engine
  • 45Hz to 65Hz Line Frequency Range with Same Calibration
  • Phase Compensation (±10°)
  • Four Multifunction DIO Pins
  • SPI Interface
  • -40°C to +85°C Industrial Temperature Range
  • 28-Pin TSSOP Lead(Pb)-Free Package
MAX71020
Single-Chip Electricity Meter AFE
MAX71020: Typical Operating Circuit
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