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 Maxim Integrated’s fourth-generation meter system-on-chip (SoC) and an improved analog-to-digital converter (ADC). It interfaces to a host controller of choice over a SPI interface.
●The MAX71020A comes in a 28-pin TQFN package.
●Features
● 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
