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MCP3903
  • MCP3903

MCP3903

In Production

The MCP3903 six channel analog front end, ideal for three phase energy measurement, power monitoring, and other applications requiring multiple high accuracy ADCs. The MCP3903 features high accuracy 16/24-bit delta-sigma A/D converters, internal programmable gain amplifiers, an internal voltage reference, and phase-delay compensation with up to 91 dB SINAD. Communication with the MCP3903 is done via the SPI interface enabling control of the PGAs, oversampling ratio for control of the output data rate (up to 64 ksps), resolution, dithering, shutdown and other communication features.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 MCP3903 Product Info

16 April 2026 0

Parameters

Resolution

24

Sample Rate kSPS Max

64

Input Channels Differential

6

SNRtyp

91.5

SFDR typ

102

ENOB

14.9

INL Typ LSB

15

Features

  • Six simultaneously sampled 16/24-bit resolution delta-sigma A/D converters
  • Programmable data rate up to 64 ksps
  • Internal voltage reference with low drift of 5 ppm/°C
  • Internal PGAs on each channel with gain of 32 V/V
  • Phase delay compensation between channels with 1 µs resolution
  • Available in a 7.8 x 10.2 mm SSOP package
  • Extended Temperature Range: -40°C to +125°C

    • Description

    The MCP3903 six channel analog front end, ideal for three phase energy measurement, power monitoring, and other applications requiring multiple high accuracy ADCs. The MCP3903 features high accuracy 16/24-bit delta-sigma A/D converters, internal programmable gain amplifiers, an internal voltage reference, and phase-delay compensation with up to 91 dB SINAD. Communication with the MCP3903 is done via the SPI interface enabling control of the PGAs, oversampling ratio for control of the output data rate (up to 64 ksps), resolution, dithering, shutdown and other communication features.


    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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