Microchip Technology MCP3918A1T-E/ML

Description
The MCP3918 is a 3V single-channel Analog Front End (AFE) that includes:
24-bit resolution Delta-Sigma A/D Converter
Programmable Gain Amplifier (PGA)
Phase delay compensation block
Low-drift internal voltage reference
Digital offset and Gain Error Calibration registers
High-speed 20 MHz SPI compatible serial interface

Features
93.5 dB SINAD
-107 dBc Total Harmonic Distortion (THD) (up to 35th harmonic)
112 dB Spurious-Free Dynamic Range (SFDR)
Flexible serial interface with SPI and two-wire interface
Advanced security features:
16-bit Cyclic Redundancy Check (CRC) checksum on all communications
16-bit CRC checksum and interrupt alert for register map configuration
Register map lock with 8-bit secure key
2.7V-3.6V AVDD-DVOD
Programmable data rate up to 125 ksps
Oversampling ratio up to 4096
Ultra low-power shutdown mode with < 10 μA
Low-drift 1.2V internal voltage reference: 9 ppm/°C
Differential voltage reference input pins
High-gain programmable PGA (up to 32 V/V)
Phase delay compensation with 1 us time resolution
Separate Data Ready pin for easy synchronization
Individual 24-bit digital offset and gain error correction
High-speed 20 MHz SPI interface with Mode 0,0 and 1,1 compatibility
Continuous Read/Write modes for minimum communication with dedicated 16-/32-bit modes
Available in 20-lead QFN and SSOP packages
Extended temperature range: -40°C to 125°C (all specifications are valid down to -45°C)

Applications
Single-phase and polyphase energy meters
Energy metering and power measurement
Automotive
Portable instrumentation
Medical and power monitoring
Audio/voice recognition
Isolator sensor applications