MCP3912

The MCP3912 is a 3V four channel Analog-Front-End (AFE) containing four synchronous sampling Delta-Sigma Analog-to-Digital Converters (ADC), four PGAs, phase delay compensation block, internal voltage reference, digital offset and gain error calibration registers and high-speed 20 MHz SPI compatible serial interface.  The MCP3912 AFE is capable of interfacing to a variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors

产品特性
  • Four Synchronous Sampling 24-bit Delta-Sigma A/D Converters
  • 93.5 dB SINAD, -107 dBc THD, 112 dBFS SFDR
  • Enables 0.1% Typical Active Power Measurement Error over a 10,000:1 Dynamic Range
  • 2.7V - 3.6V AVDD, DVDD
  • Programmable Data Rate up to 125 ksps 4 MHz Maximum Sampling Frequency
  • 4 MHz Maximum Sampling Frequency
  • Advanced Security Features 16-Bit CRC Checksum and Interrupt Alert Register Map Lock
  • 16-Bit CRC Checksum and Interrupt Alert
  • Register Map Lock
  • Oversampling Ratio up to 4096
  • Ultra Low Power Shutdown Mode with <10 µA
  • -122 dB Crosstalk between the Two Channels
  • Low Drift 1.2V Internal Voltage Reference: 9 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 Data Ready Pin for Easy Synchronization
  • Individual 24-bit Digital Offset and Gain Error Correction for Each Channel
  • High-Speed 20 MHz SPI Interface
  • Continuous Read/Write Modes for Minimum Communication
  • Available in 28-Lead QFN and SSOP Packages
技术参数
Parameter Name Value Value
Measurement Error 0.1% 0.1%
Dynamic Range 10000:1 10000:1
Voltage Reference Drift ppm typ 9 9
PSRR % typ -73 -73
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
文档资料
MCP3912 Data SheetData Sheets11/09/20145939KB
MCP3912 Rev. A Silicon Errata and Data Sheet ClarificationErrata07/17/201567KB
MCP3912 User's GuideProduct Document11/09/20141167KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP3912A1-E/MQ28QFN-40C to +125CTUBE3.282.732.482.402.37
MCP3912A1-E/SS28SSOP-40C to +125CTUBE3.232.692.452.362.34
MCP3912A1T-E/MQ28QFN-40C to +125CT/R3.282.732.482.402.37
MCP3912A1T-E/SS28SSOP-40C to +125CT/R3.232.692.452.362.34
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器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP3912A1-E/SS0.2292000.48936228SSOP.209inMatte Tine3
MCP3912A1T-E/SS0.2292000.33333328SSOP.209inMatte Tine3
MCP3912A1-E/MQ0.0665000.10958928QFN5x5x0.9mmMatte Tine3
MCP3912A1T-E/MQ0.0665000.16697028QFN5x5x0.9mmMatte Tine3
MCP3912 Data Sheet MCP3912
MCP3912 Rev. A Silicon Errata and Data Sheet Clarification MCP3912
MCP3912 User's Guide ADM00499