MCP3918
3V Single-Channel Analog Front End
Features: Description: One 24-bit Resolution Delta-Sigma A/D Converter 93.5 dB SINAD, -107 dBc Total Harmonic
Distortion (THD) (up to 35th harmonic), 112 dB
Spurious-Free Dynamic Range (SFDR) Flexible Serial Interface that Includes Both SPI
and a Simple 2-Wire Interface Ideal for Polyphase
Shunt Energy Meters Advanced Security Features:
-16-bit Cyclic Redundancy Check (CRC)
Checksum on All Communications for Secure
Data Transfers
-16-bit 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 ВµA Low-Drift 1.2V Internal Voltage Reference:
9 ppm/В°C Differential Voltage Reference Input Pins High-Gain Programmable Gain Amplifier (PGA)
(up to 32 V/V) Phase Delay Compensation with 1 Вµs 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: -40В°C to +125В°C
(all specifications are valid down to -45В°C) The MCP3918 is a 3V single-channel Analog Front End …
