MCP3911

The MCP3911 is a 2.7V to 3.6V dual channel Analog Front End (AFE) containing two synchronous sampling Delta-Sigma Analog-to-Digital Converters (ADC), two PGAs, phase delay compensation block, internal voltage reference, modulator output block, and highspeed 20 MHz SPI compatible serial interface. The MCP3911 is capable of interfacing a large variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors.

Features
  • Two Synchronous Sampling 16/24-bit ResolutionDelta-Sigma A/D Converters
  • 94.5 dB SINAD, -106.5 dBc Total Harmonic Distortion(THD)
  • 2.7V - 3.6V AVDD, DVDD
  • Programmable Data Rate up to 125 ksps 4 MHz Maximum Sampling Frequency
  • 4 MHz Maximum Sampling Frequency
  • Oversampling Ratio up to 4096
  • Ultra Low Power Shutdown Mode with <2 µA
  • -122 dB Crosstalk between the Two Channels
  • Low Drift 1.2V Internal Voltage Reference: 7 ppm/°C
  • Differential Voltage Reference Input Pins
  • High Gain PGA on Each Channel (up to 32V/V)
  • Phase Delay Compensation with 1 µs Time Resolution
  • Separate Modulator Output Pins for Each Channel
  • Separate Data Ready Pin for Easy Synchronization
  • Individual 24-bit Digital Offset and Gain Error Correction for Each Channel
  • High-Speed 20 MHz SPI Interface with Mode 0,0 and 1,1 Compatibility
  • Continuous Read/Write Modes for Minimum Communication
  • Low Power Consumption (8.9 mW at 3.3V, 5.6 mW at 3.3V in low-power mode, typical)
  • Available in Small 20-lead QFN and SSOP Packages,Pin-to-pin Compatible with MCP3901
  • Extended Temperature Range: -40°C to +125°C
  • AEC-Q100 Grade 1
Parameter
Parameter Name Value Value
Measurement Error 0.1% 0.1%
Dynamic Range 10000:1 10000:1
Voltage Reference Drift ppm typ 7 7
PSRR % typ -73 dB -73 dB
Temp. Range (°C) -40 to 125 -40 to 125
Analog Supply Voltage AVdd Range (V) 2.7 to 3.6 2.7 to 3.6
Digital Supply Voltage DVdd Range (V) 2.7 to 3.6 2.7 to 3.6
Documents
MCP3911 Data SheetData Sheets10/22/20132033KB
MCP3911 ErrataErrata07/30/201568KB
AN1426 - Design Tips for the MCP3911AppNote04/20/2012432KB
MCP3911 ADC Evaluation Board for 16-Bit MCUs User's GuideUser Guides03/30/20121612KB
MCP3911 and PIC18F85K90 Reference Design User's GuideUser Guides05/03/20131708KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP3911A0-E/ML20QFN-40C to +125CTUBE1.971.641.491.441.43
MCP3911A0-E/SS20SSOP-40C to +125CTUBE1.941.621.471.421.40
MCP3911A0T-E/ML20QFN-40C to +125CT/R1.971.641.491.441.43
MCP3911A0T-E/SS20SSOP-40C to +125CT/R1.941.621.471.421.40
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP3911A0T-E/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP3911A0-E/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP3911A0-E/SS0.1642000.34328420SSOP.209inMatte Tine3
MCP3911A0T-E/SS0.1642000.41625020SSOP.209inMatte Tine3
MCP3911 Data Sheet MCP3911
MCP3911 Errata MCP3911
AN1426 - Design Tips for the MCP3911 ADM00398
MCP3911 ADC Evaluation Board for 16-Bit MCUs User's Guide ADM00398
MCP3911 and PIC18F85K90 Reference Design User's Guide ARD00385