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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
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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.
Applications
- Building Automation Systems
- Grid-Friendly Appliances and Smart Plugs
- Power Distribution Units
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
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Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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Documentation
Software & Part Ecosystem
Evaluation Kits 1
MAX71020AEVK1
Evaluation Kit for MAX71020A
Features and Benefits
- Allows Evaluation of the MAX71020A Embedded Energy Measurement Device in a Safe and Simple Manner
- Isolated SPI/USB for User Safety
- Windows Graphical User Interface (GUI) Handles All Common Tasks
- Easy Hook Up to Test Equipment or Other Test Environments
- Fully Assembled and Tested
- Precalibrated with Utility Meter Grade Equipment
- Highly Accurate AFE for Testing
- AC 2000:1 Dynamic Current Range at 0.5% Accuracy
- DC Voltage and/or Current Measurement
Product Detail
The MAX71020AEVK1# evaluation kit (EV kit) demon- strates the capabilities of the MAX71020A embedded energy measurement (EM) device. The EVK can measure AC and/or DC current and voltage utilizing a surface mount resistive shunt and resistive voltage divider.
The EV kit provides an isolated SPI interface to the device over USB. A provided Windows® graphical user interface (GUI) handles translation from the USB to device-specific SPI protocols.
Applications
- Building Automation Systems
- Grid-Friendly Appliances and Smart Plugs
- Power Distribution Units
Resources
