MAX71020
Single-Chip Electricity Meter AFE
Proven Teridian Metrology in an AFE Allows the Use of Micro for Electricity Metering
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
The MAX71020 is a single-chip analog front-end (AFE) for use in high-performance revenue meters. 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), and interfaces to the host controller of choice over a SPI interface.
The MAX71020 comes in a 28-pin TSSOP package.
Applications
- Industrial Electricity Meters
- Residential Electricity Meters
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
This is the most up-to-date revision of the Data Sheet.
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