Microchip Technology MCP3910A1-E/SS

Description
Two-channel Analog Front End (AFE)
Two synchronous sampling 24-bit resolution Delta-Sigma A/D Converters
93.5 dB SINAD, -107 dBc Total Harmonic Distortion (THD), 112 dB Spurious-Free Dynamic Range (SFDR) for each channel
Flexible serial interface with SPI and a simple two-wire interface
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
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
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

Features
Two-channel Analog Front End (AFE)
Two synchronous sampling 24-bit resolution Delta-Sigma A/D Converters
93.5 dB SINAD, -107 dBc Total Harmonic Distortion (THD), 112 dB Spurious-Free Dynamic Range (SFDR) for each channel
Flexible serial interface with SPI and a simple two-wire interface
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
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
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

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