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MCP3906 Datasheet (MCP3905 / MCP3906) Energy-Metering ICs

Manufacturer: Microchip Technology

Overview: Obsolete Device Replacement Device: MCP3905A/MCP3906A MCP3905/06 Energy-Metering ICs with Active (Real) Power Pulse.

Download the MCP3906 datasheet PDF. This datasheet also includes the MCP3905 variant, as both parts are published together in a single manufacturer document.

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General Description

The MCP3905/06 devices are energy-metering ICs designed to support the IEC 62053 International Metering Standard Specification.

They supply a frequency output proportional to the average active (real) power, as well as a higher-frequency output proportional to the instantaneous power for meter calibration.

They include two 16-bit, delta-sigma ADCs for a wide range of IB and IMAX currents and/or small shunt (< 200 µOhms) meter designs.

Key Features

  • Supplies active (real) power measurement for single-phase, residential energy-metering.
  • Supports the IEC 62053 International Energy Metering Specification and legacy IEC 1036/ 61036/687 Specifications.
  • Two multi-bit, Digital-to-Analog Converters (DACs), second-order, 16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs).
  • 0.1% typical measurement error over 500:1 dynamic range (MCP3905).
  • 0.1% typical measurement error over 1000:1 dynamic range (MCP3.

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