Microchip Technology Inc
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MCP3914

Status: In Production

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
  • AEC-Q100 Grade 1
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

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.

Additional 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
    • AEC-Q100 Grade 1
Parametrics
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

Documents

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Data Sheets

08/15/2013
2830KB

Errata

04/09/2015
66KB

Device Documentation

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MCP3914 Evaluation Board
MCP3914 Evaluation Board ( ADM00523 )

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
Rohs icon
efup china icon
MCP3914A1T-E/MV
0.042500
0.166970
40
UQFN
5x5x0.5mm
Matte Tin
e3
Rohs icon
efup china icon
MCP3914A1T-E/MVVAO
0.042500
0.166970
40
UQFN
5x5x0.5mm
Matte Tin
e3
Rohs icon
efup china icon
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.

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