MAX78700 - Multichannel, Isolated, Precision ADC


Maxim offers an isolated data converter that does not require a power supply

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.

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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
Applications
  • Commercial and industrial automation
  • Electric vehicle charging systems
  • Lighting control systems
  • Renewable energy systems
  • Smart-grid-friendly equipment

MAX78700 - Multichannel, Isolated, Precision ADC

Manufacturer Part Number Description Available Quantity Datasheets
MAX78700+A00 IC ADC ENERGY MEASUREMENT 10UMAX 20

Eval Board

Manufacturer Part Number Description Available Quantity Datasheets
MAXREFDES14# REFERENCE DESIGN SONOMA 4