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MCP3551 - Single-Channel 22-Bit Delta-Sigma ADC

General Description

The Microchip Technology Inc.

MCP3551/3 devices are 2.7V to 5.5V low-power, 22-bit Delta-Sigma Analog-to-Digital Converters (ADCs).

The devices offer output noise as low as 2.5 µVRMS, with a total unadjusted error of 10 ppm.

Key Features

  • 22-bit ADC in Small 8-pin MSOP Package with Automatic Internal Offset and Gain Calibration.
  • Low-Output Noise of 2.5 µVRMS with Effective Resolution of 21.9 bits (MCP3551).
  • 3 µV Typical Offset Error.
  • 2 ppm Typical Full-Scale Error.
  • 6 ppm Maximum INL Error.
  • Total Unadjusted Error Less Than 10 ppm.
  • No Digital Filter Settling Time, Single-Command Conversions through 3-wire SPI™ Interface.
  • Ultra-Low Conversion Current (MCP3551):.

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Datasheet Details

Part number MCP3551
Manufacturer Micro Chip
File Size 875.75 KB
Description Single-Channel 22-Bit Delta-Sigma ADC
Datasheet download datasheet MCP3551 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MCP3551/3 Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs Features • 22-bit ADC in Small 8-pin MSOP Package with Automatic Internal Offset and Gain Calibration • Low-Output Noise of 2.5 µVRMS with Effective Resolution of 21.9 bits (MCP3551) • 3 µV Typical Offset Error • 2 ppm Typical Full-Scale Error • 6 ppm Maximum INL Error • Total Unadjusted Error Less Than 10 ppm • No Digital Filter Settling Time, Single-Command Conversions through 3-wire SPI™ Interface • Ultra-Low Conversion Current (MCP3551): - 100 µA typical (VDD = 2.7V) - 120 µA typical (VDD = 5.0V) • Differential Input with VSS to VDD Common Mode Range • 2.7V to 5.5V Single-Supply Operation • Extended Temperature Range: - -40°C to +125°C Description The Microchip Technology Inc. MCP3551/3 devices are 2.7V to 5.