MAX78700 - Multichannel, Isolated, Precision ADC

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

Image of Maxim Integrated's MAX78700 - Multichannel, Isolated, Precision ADC

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

ImageManufacturer Part NumberDescriptionAvailable Quantity
MAX78700+A00 datasheet linkIC ADC ENERGY MEASUREMENT 10UMAXMAX78700+A00IC ADC ENERGY MEASUREMENT 10UMAX0MAX78700+A00 product page link

Evaluation Board

ImageManufacturer Part NumberDescriptionMain PurposeUtilized IC / PartAvailable Quantity
MAXREFDES14# datasheet linkREFERENCE DESIGN SONOMAMAXREFDES14#REFERENCE DESIGN SONOMAPower Management, Energy/Power MeterMAX78615+LMU, MAX787007 - Immediate
MAXREFDES14# product page link
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Published: 2014-06-18