制造商:Microchip
The MCP3918 is a 2.7V to 3.6V single channel Analog Front End (AFE) containing a Delta-Sigma Analog-to-Digital Converter (ADC), PGA, internal voltage
reference, modulator output block, and highspeed 20 MHz SPI compatible serial interface. For polyphase shunt based energy meters, the MCP3918 2-wire serial
interface greatly reduces system cost requiring only a single bidirectional isolator per phase. The MCP3918 is capable of interfacing a large variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors
16/24-bit Resolution Delta-Sigma A/D Converter
Flexible serial interface that includes both SPI and a simple 2-wire interface ideal for polyphase shunt energy meters
93.5 dB SINAD, -106.5 dBc THD
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
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 Data Ready Pin for Easy Synchronization
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
Low Power Consumption
Available in Small 20-lead QFN and SSOP Packages
Specifications valid down to -45°C operation
MCP3918 封装图
MCP3918 封装图
型号 | 制造商 | 描述 | 购买 |
---|---|---|---|
MCP3918A1T-E/SS | Microchip | IC ENERGY METER FRONT 1CH 20SSOP | 立即购买 |
MCP3918A1T-E/ML | Microchip | IC ENERGY METER FRONT 1CH 20QFN | 立即购买 |
MCP3918A1-E/SS | Microchip | Single Phase Meter IC 20-SSOP | 立即购买 |
MCP3918A1-E/ML | Microchip | Single Phase Meter IC 20-QFN (4x4) | 立即购买 |
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