MAX71020A

• Best-in-Class Embedded Algorithms Support Highly Accurate Electricity Measurements
  • Voltage, Current, and Frequency
  • Active, Reactive, and Apparent Power/Energy
  • Digital Temperature Compensation
  • 40Hz–70Hz Line Frequency Range and Phase Compensation (±10°)
• Advanced AFE with Exceptional Accuracy and Temperature Stability
  • Voltage Reference Temperature Coefficient: 40ppm/°C (max)
  • On-Chip Digital Temperature Sensor
  • 24-Bit 2nd Order Delta-Sigma ADCs with Differential and Single-Ended Inputs
  • ±0.1% Wh Accuracy over 2000:1 Current Range
• Highly Integrated Features Support Compact Design Cycles and Reduced Bill of Materials
  • Small, 28-Pin TQFN Package
  • Digital Temperature Compensation
  • Low Power Consumption
  • Less Than 5mA (typ) Consumption at 3.3V
  • Simple Host Interface
  • SPI Slave
  • Atomic Measurements Outputs
  • DIO or SPI-Based Status Signals

The MAX71020A is a single-chip analog front-end (AFE) for use in embedded energy measurement applications. It contains the compute engine (CE) found in fourth-generation Teridian meter system-onchips (SoCs) and an improved analog-to-digital converter (ADC). It interfaces to a host controller of choice over a SPI interface.