Microchip Technology MCP3910T-E/SS

Description
The MCP3910 is a 3V two-channel Analog Front End (AFE) with two synchronous sampling delta-sigma Analog-to-Digital Converters (ADCs), two programmable gain amplifiers (PGA), a phase delay compensation block, a low-drift internal voltage reference, digital offset and gain error calibration registers, and a high-speed 20 MHz SPI-compatible serial interface.

Features
Two Synchronous Sampling 24-bit Resolution Delta-Sigma A/D Converters
93.5 dB SINAD, -107 dBc Total Harmonic Distortion (THD) (up to 35th harmonic), 112 dB Spurious-Free Dynamic Range (SFDR) for Each Channel
Flexible Serial Interface that Includes Both SPI and a Simple 2-Wire Interface Ideal for Polyphase Shunt Energy Meters
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 on All Communications for Secure Data Transfers
16-bit Cyclic Redundancy Check (CRC) Checksum and Interrupt Alert for Register-Map Configuration
Register-Map Lock with 8-bit Secure Key
2.7V - 3.6V AVDD, DVDD
Programmable Data Rate, up to 125 ksps:
4 MHz Maximum Sampling Frequency
16 MHz Maximum Master Clock
Oversampling Ratio, up to 4096
Ultra Low-Power Shutdown Mode with < 10 μA
-122 dB Crosstalk between Channels
Low Drift 1.2V Internal Voltage Reference: 9 ppm/°C
Differential Voltage Reference Input Pins
High-Gain Programmable Gain Amplifier (PGA) on Each Channel (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 for Each Channel
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 Operation)

Applications
Single-Phase and Polyphase Energy Meters
Energy Metering and Power Measurement
Automotive
Portable Instrumentation
Medical and Power Monitoring
Audio/Voice Recognition
Isolated Sensor Applications