MCP3911中文资料24-Bit, 125kSPS, 2-Ch Simultaneous Sample ADC数据手册Microchip规格书

描述 Description

The MCP3911 is a 2.7V to 3.6V dual channel Analog Front End (AFE) containing two simultaneous sampling Delta-Sigma Analog-to-Digital Converters (ADC), two PGAs, phase delay compensation block (1 µs resolution), low drift (9ppm/°C) 1.2V internal voltage reference, modulator output block, and high speed 20 MHz SPI compatible serial interface. The MCP3911 is capable of interfacing a large variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors. It supports a dynamic range of 10000:1.The MCP391x portfolio of Analog Front Ends feature performance and functionality which makes them appropriate for use in designs targeted to meet the following industry standards for smart metering applications: IEC62053-11, IEC62053-21, IEC60253-22, ANSI C12.20. In such designs, the MCP391x portfolio can be paired with either MCUs/MPUs which are running a metrology engine, or standard (non-Metrology) MCUs/MPUs.Please contact jeff.keip@microchip.com if you need something you are unable to find on this page

特性 Features

Flexible serial interface that includes both SPI and a simple 2-wire interface ideal for polyphase shunt energy meters
Programmable Data Rate up to 125 ksps- 4 MHz Maximum Sampling Frequency
Oversampling Ratio up to 4096
Ultra Low Power Shutdown Mode with -122 dB Crosstalk between the Two Channels
Differential Voltage Reference Input Pins
High Gain PGA on Each Channel (up to 32V/V)
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
Continuous Read/Write Modes for Minimum Communication
Available in Small 20-lead QFN and SSOP Packages
Specifications valid down to -45°C operation
AEC-Q100 Grade 1

简介

MCP3911属于集成电路（IC）的模拟前端（AFE）。由制造生产的MCP3911模拟前端（AFE）模拟前端 (AFE) 是一种用于信号调节的半导体器件，由模拟放大器、运算放大器、滤波器和集成电路构成。这种可配置功能块能连接各种传感器。分辨率范围从 8 位至 42 位不等，通道数范围为 1 至 256 个。