MCP3551

The Microchip Technology Inc. MCP355X devices are 2.7V to 5.5V low-power, 22-bit delta-sigma A/D converters. The devices offer output noise as low as 2.5 µVrms with a total unadjusted error of less than 10 ppm. The family exhibits less than 6 ppm integral non-linearity (INL) error, 3 µV offset error, and 2 ppm full scale error. The MCP355X devices provide high accuracy and low noise performance for applications where sensor measurements such as pressure, temperature, and humidity are performed. With the internal oscillator and high oversampling rate, minimal external components are required for high accuracy applications. The fully differential analog inputs make it compatible with a wide variety of sensor and measurement applications. The MCP355X devices operate from -40°C to +125°C and are available in the space-saving 8-pin MSOP and SOIC packages.

Features
  • 22-bit ADC with automatic internal offset and gain calibration
  • Low output noise 2.5 µVrms
  • 3 µV offset error
  • 2 ppm typical full-scale error
  • 6 ppm maximum INL error
  • Total unadjusted error less than 10 ppm
  • Sample rate 13.75 sps
  • No digital filter settling time, single command conversions through 3-wire SPI™ interface
  • Low conversion current 100 µA typical (VDD = 2.7V) 120 µA typical (VDD = 5.0V)
  • 100 µA typical (VDD = 2.7V)
  • 120 µA typical (VDD = 5.0V)
  • 8-pin MSOP and SOIC packages
  • Differential inputs with VSS to VDD common mode range
  • 2.7V to 5.5V single supply operation
  • Extended temperature range: -40°C to +125°C
Parameter
Parameter Name Value Value
Typical Supply Current (µA) 120 120
Typical INL (ppm) 2 2
Max Sample Rate (samples/sec) 14 14
Input Type 1 Differential 1 Differential
Interface SPI SPI
Resolution (bits) 22 22
Supply Voltage Range (V) 2.7 to 5.5 2.7 to 5.5
Documents
MCP3550/MCP3551/MCP3553 Data SheetData Sheets08/07/2014923KB
AN1007 - Designing with the MCP3551 Delta-Sigma ADCAppNote10/06/2005421KB
AN1007 - Designing with the MCP3551 Delta-Sigma ADC (Japanese)AppNote04/06/2006482KB
AN1030 - Weigh Scale Applications for the MCP3551AppNote08/02/20061189KB
AN1030 - Weigh Scale Applications for the MCP3551 (Japanese)AppNote12/17/2006804KB
AN1154 - Precision RTD Instrumentation for Temperature SensingAppNote05/06/2013274KB
AN679 - Temperature Sensing TechnologiesAppNote08/10/1999177KB
AN687 - Precision Temperature Sensing with RTD CircuitsAppNote09/26/2008149KB
AN695 - Interfacing Pressure Sensors to Microchip's Analog PeripheralsAppNote04/13/2000230KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Automotive Recommended Product Selector GuideBrochures09/16/20147598KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Signal Chain Design GuideBrochures11/10/20123229KB
Low Power Analog SolutionsSell Sheets05/16/2011120KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
MCP3551 22-Bit Delta-Sigma ADC PICtail Demo Board User's GuideUser Guides04/20/2006806KB
MCP355X Tiny Application Sensor Demo Board User's GuideUser Guides04/21/2006530KB
MCP355x Demo Board VideoVideo01/08/200924170KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP3551-E/MS8MSOP-40C to +125CTUBE4.023.353.052.942.91
MCP3551-E/SN8SOIC-40C to +125CTUBE3.983.313.012.912.88
MCP3551T-E/MS8MSOP-40C to +125CT/R4.023.353.052.942.91
MCP3551T-E/SN8SOIC-40C to +125CT/R3.983.313.012.912.88
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP3551-E/SN0.0780000.1600008SOIC.150In(3.90mm)Matte Tine3
MCP3551T-E/SN0.0780000.2303038SOIC.150In(3.90mm)Matte Tine3
MCP3551T-E/MS0.0256000.2156008MSOP3x3mmMatte Tine3
MCP3551-E/MS0.0256000.0700008MSOP3x3mmMatte Tine3
MCP3550/MCP3551/MCP3553 Data Sheet MCP3553
MCP3550/MCP3551/MCP3553 Data Sheet MCP3551DM-PCTL
AN1007 MCP3551DM-PCTL
AN1007 MCP3553
AN1007 Source Code MCP3551DM-PCTL
AN1030 MCP3551
AN1030 MCP3553
AN1154 MCP42XXEV
AN679 TC850
AN687 MCP3553
AN695 TC850
Analog & Interface Guide (Volume 2) MCP23S08
Automotive Recommended Product Selector Guide MCP23S09
Quick Guide to Microchip Development Tools ENC28J60
Signal Chain Design Guide MCP3901
Low Power Analog Solutions MCP3551
Analog & Interface Product Selector Guide ENC624J600
MCP3551 22-Bit Delta-Sigma ADC PICtail Demo Board User's Guide MCP3551DM-PCTL
MCP355X Tiny Application Sensor Demo Board User's Guide MCP355XDM-TAS