制造商:Microchip
The MCP3910 is a 3V dual channel Analog-Front-End (AFE) containing two synchronous sampling Delta-Sigma Analog-to-Digital Converters (ADC), two PGAs, phase delay compensation block, internal voltage reference, modulator output block, and high speed 20 MHz SPI compatible serial interface. For poly-phase shunt based energy meters, the MCP3910 2-wire serial interface greatly reduces system cost by requiring only a single bidirectional isolator per phase. The MCP3910 is capable of to a variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors
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
MCP3910 封装图
MCP3910 封装图
型号 | 制造商 | 描述 | 购买 |
---|---|---|---|
MCP3910A1-E/ML | Microchip | IC ENERGY METER FRONT 2CH 20QFN | 立即购买 |
MCP3910A1-E/SS | Microchip | IC ENERGY METER FRONT 2CH 20SSOP | 立即购买 |
MCP3910A1T-E/ML | Microchip | ICENERGYMETERFRONT2CH20QFN | 立即购买 |
MCP3910A1T-E/SS | Microchip | ICENERGYMETERFRONT2CH20SSOP | 立即购买 |
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相较于内含MCU的混合式半数位电源控制的LEDDriver,MCP1633在价格上相对低廉许多,而使用上也和DEPA系列的MCP19xxxLowsideMOSFETdriver也非常类似,可以
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