Multichannel, Isolated, Precision ADC

Industry's Only Isolated Data Converter That Does Not Require a Power Supply
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Status Explanations for product status codes

Active: In Production.


The MAX78700 is an isolated analog-to-digital converter (ADC) for use with a compatible MAX78xxx energy measurement processor. The device provides current and voltage measurements to the host while the host provides control, command, and power to the MAX78700. A pulse transformer provides the isolated data and power path between the device and host, eliminating the need for additional isolation components in the measurement subsystem.

Data Sheet

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An evaluation board is available: MAXREFDES14

Key Features

  • Better Than 0.5% Watt-Hour Accuracy Over Wide Dynamic Range Using a Single Calibration Point
    • High-Resolution Delta-Sigma ADC
    • Factory-Trimmed Voltage Reference and Die Temperature Sensor
  • Simplified System Architecture
    • No Power Supply Required
    • Fully Powered by the Host with the Isolation Transformer
    • Eliminates Data Isolation Components
    • Reduced Form Factor and Bill of Materials
  • Small 10-Pin µMAX® Package


  • Commercial and Industrial Automation
  • Electric Vehicle Charging Systems
  • Lighting Control Systems
  • Renewable Energy Systems
  • Smart Grid Friendly Equipment

Key Specifications:

Energy Measurement SoCs
Part Number Total Sensor Inputs Slave Host Interface(s) Budgetary
See Notes
MAX78700  3 Proprietary $0.68 @1k
See All Energy Measurement SoCs (9)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX78700: Block Diagram
Block Diagram

More Information

New Product Press Release   2014-02-04 ] [ 2013-10-09 ]

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Information Index

Document Ref.: 19-6565 Rev 0; 2013-01-10
This page last modified: 2013-01-10