产品特性

• Two Synchronous Sampling 16/24-bit Resolution Delta-Sigma A/D Converters
• Flexible serial interface that includes both SPI and a simple 2-wire interface ideal for polyphase shunt energy meters
• 93.5 dB SINAD, -107 dBc THD, 112 dBFS SFDR
• 2.7V - 3.6V AVDD, DVDD
• Programmable Data Rate up to 125 ksps- 4 MHz Maximum Sampling Frequency
• Oversampling Ratio up to 4096
• Ultra Low Power Shutdown Mode with <2 µA
• -122 dB Crosstalk between the Two Channels
• Low Drift 1.2V Internal Voltage Reference: 9 ppm/°C
• Differential Voltage Reference Input Pins
• High Gain PGA on Each Channel (up to 32V/V)
• Phase Delay Compensation with 1 µs Time Resolution
• Separate Modulator Output Pins for Each Channel
• 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
• Low Power Consumption
• Available in Small 20-lead QFN and SSOP Packages
• Specifications valid down to -45°C operation

技术参数