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MCP3919
  • MCP3919
  • MCP3919

MCP3919

Not Recommended for new designs

The MCP3919 errata has been addressed with a silicon change resulting in an update to the part number (MCP3919B). Although there are no plans to discontinue the MCP3919, new designs would be best served by using the newer device. The MCP3919B is particularly a better choice for systems sensitive to power consumption, as a circuit level resolution to one of the errata has been rendered unnecessary.We welcome questions, comments and recommendations for improvements to this page - please contact us at: ADCwebrequests@microchip.com if you have any; please mention the part number in the email subject header....

Microchip Technology MCP3919 Product Info

16 April 2026 0

Parameters

Resolution

24

Sample Rate kSPS Max

125

Input Channels Differential

3

SNR typ

94

SFDRTyp

112

ENOB

15.2

INL Typ LSB

5

Features

  • Three Simultaneous Sampling A/D Converters
  • Enables 0.1% Typical Active Power Measurement Error over a 10,000:1 Dynamic Range
  • 93.5 dB SINAD, -107 dBc THD
  • 2.7V - 3.6V AVDD, DVDD
  • 4 MHz Maximum Sampling Frequency
  • Oversampling Ratio up to 4096
  • Ultra Low Power Shutdown Mode with <10 µA
  • Low Drift 1.2V Internal Voltage Reference: 9 ppm/°C
  • Differential Voltage Reference Input Pins
  • Flexible serial interface that includes both SPI and a simple 2-wire interface ideal for polyphase shunt energy meters
  • Phase Delay Compensation with 1 µs Time Resolution
  • Separate Data Ready Pin for Easy Synchronization
  • Individual 24-bit Digital Offset and Gain Error Correction for Each Channel
  • High Gain PGA on Each Channel (up to 32V/V)
  • 16-Bit CRC Checksum and Interrupt Alert
  • Register Map Lock
  • -122 dB Crosstalk between Channels
  • Continuous Read/Write Modes for Minimum Communication
  • Available in 28-Lead QFN and SSOP Packages
  • AEC-Q100 Grade 1

    • Description

    The MCP3919 errata has been addressed with a silicon change resulting in an update to the part number (MCP3919B). Although there are no plans to discontinue the MCP3919, new designs would be best served by using the newer device. The MCP3919B is particularly a better choice for systems sensitive to power consumption, as a circuit level resolution to one of the errata has been rendered unnecessary.


    We welcome questions, comments and recommendations for improvements to this page - please contact us at: ADCwebrequests@microchip.com if you have any; please mention the part number in the email subject header.

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