Microchip Technology Inc

MCP3914

In Production

The MCP3914 is a 3V eight-channel Analog Front End(AFE, containing eight synchronous sampling delta-sigma ADCs, eight PGAs, phase delay compensation block, low-drift internal voltage reference, digital offset and gain error calibration registers, and high-speed 20 MHz SPI compatible serial interface. The MCP3914 ADCs are fully configurable, with features such as: 16/24-bit resolution, Oversampling Ratio (OSR) from 32 to 4096, gain from 1x to 32x, independent Shutdown and Reset, dithering and auto-zeroing. The MCP3914 includes advanced security features to secure the communications and the configuration settings, such as a CRC-16 checksum on both serial data outputs and static register map configuration. It also includes a register-map lock through an 8-bit secure key to stop unwanted write commands from processing. The MCP3914 is capable of interfacing with a variety of voltage and current sensors, including shunts, current transformers, Rogowski coils and Hall-effect sensors.

 

    Features

        • Eight Synchronous Sampling 24-bit Delta-Sigma ADCs
        • 94.5 dB SINAD, -107 dBc Total Harmonic Distortion (THD) (up to 35th Harmonic), 112 dBFS SFDR for Each Channel
        • Enables 0.1% Typical Active Power Measurement Error over a 10,000:1 Dynamic Range
        • Advanced Security Features: - 16-bit Cyclic Redundancy Check (CRC) checksum - 16-bit CRC checksum and interrupt alert for register map configuration - Register map lock with 8-bit secure key
        • Programmable Data Rate up to 125 ksps
        • Oversampling Ratio up to 4096
        • Ultra-Low Power Shutdown Mode with < 10 µA
        • -122 dB Crosstalk between Channels
        • Differential Voltage Reference Input Pins
        • High Gain Programmable-Gain Amplifier (PGA) on Each Channel (up to 32 V/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 Serial Peripheral Interface (SPI) with Mode 0,0 and 1,1 Compatibility
        • Continuous Read/Write Modes for Minimum Communication Time
        • Available in a 40-lead UQFN Package
    Parameter Name
    Value
    Measurement Error
    0.1%
    Dynamic Range
    10000:1
    Gain Selection
    1:32
    Voltage Reference Drift Typical (ppm/°C)
    9
    PSRR % typ
    -73 dB
    ADC Resolution (bits)
    24
    # of Channels
    8
    Power Type
    Poly-Phase
    Device Type
    Analog-Front-End
    Interface
    SPI
    Operating Voltage (V)
    2.7 - 3.6
    Temperature Range (°C)
    -40 to 125
    Documentation
    Data Sheets
    08/15/2013
    2830KB
      Errata
     
     
     
     
    Errata
    04/09/2015
    66KB
      Product Document
     
     
     
     
    Product Document
    10/10/2013
    1047KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP3914A1-E/MV
    40
    UQFN
    -40C to +125C
    TUBE
    5.20
    4.34
    3.94
    3.81
    3.76
    MCP3914A1T-E/MV
    40
    UQFN
    -40C to +125C
    T/R
    5.20
    4.34
    3.94
    3.81
    3.76
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • MCP3914 Evaluation Board ( ADM00523 )

      MCP3914

      The MCP3914 ADC Evaluation Board for 16-Bit MCUs system provides the opportunity to evaluate the performance of the MCP3914 eight-channel AFE. It also provides a development platform for 16-bit PIC® based applications, using existing 100-pin PIC microcontroller Plug-in Module (PIM) systems that are compatible with the Explorer 16 and other high pin count PIC® based demo boards. The system...

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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MCP3914A1-E/MV
    0.042500
    0.109589
    40
    UQFN
    5x5x0.5mm
    Matte Tin
    e3
    MCP3914A1T-E/MV
    0.042500
    0.166970
    40
    UQFN
    5x5x0.5mm
    Matte Tin
    e3
    MCP3914A1T-E/MVVAO
    0.042500
    0.166970
    40
    UQFN
    5x5x0.5mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.