19-6400; Rev 0; 7/12 MAX71020 Single-Chip Electricity Meter AFE General Description The MAX71020 is a single-chip, analog front-end to be used in high-performance revenue meters.
It contains the compute engine found in Maxim’s fourth-generation meter SOC and an improved ADC, and interfaces to the host microcontroller of choice over a SPI interface.
The MAX71020 comes in a 28-pin TSSOP package.
Features S 0.
1% Accuracy Over 2000:1 Current Range S Exceeds IEC 62053/ANSI C12.
20 Standards S Two Differential Current Sensor Inputs S Two Voltage Sensor Inputs S Selectable Gain of 1 or 9 for One Current Input to Support a Shunt S High-Speed Wh/VARh Pulse Outputs with Programmable Width S Up...

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