Catalog
24-Bit, 125kSPS, 4-Ch Simultaneous Sample ADC
Key Features
- Four Simultaneous 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
- 16-Bit CRC Checksum and Interrupt Alert
- Oversampling Ratio up to 4096
- Register Map Lock
- Ultra Low Power Shutdown Mode with <10 µA
- -122 dB Crosstalk between the Two Channels
- Differential Voltage Reference Input Pins
- High Gain PGA on Each Channel (up to 32V/V)
- Separate Data Ready Pin for Easy Synchronization
- Individual 24-bit Digital Offset and Gain Error Correction for Each Channel
- Continuous Read/Write Modes for Minimum Communication
- Available in 28-Lead QFN and SSOP Packages
- Extended Temperature Range: -40°C to +125°C
- AEC-Q100 Grade 1
Description
AI
The MCP3912 is a 3V four channel Analog-Front-End (AFE) containing four simultaneous sampling Delta-Sigma Analog-to-Digital Converters (ADC), four PGAs, phase delay compensation block (1 µs resolution), low drift (9ppm/°C) 1.2V internal voltage reference, modulator output block, 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.
The MCP391x portfolio of Analog Front Ends feature performance and functionality which makes them appropriate for use in designs targeted to meet the following industry standards for smart metering applications: IEC62053-11, IEC62053-21, IEC62053-22, ANSI C12.20. In such designs, the MCP391x portfolio can be paired with either MCUs/MPUs which are running a metrology engine, or standard (non-Metrology) MCUs/MPUs.
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