描述 Description

The MCP3901 dual channel analog front end features high accuracy 16/24-bit delta-sigma A/D converters, internal programmable gain amplifiers, an internal voltage reference, and phase-delay compensation with up to 91 dB SINAD. Communication with the MCP3901 is done via the SPI interface enabling control of the PGAs, oversampling ratio for control of the output data rate (up to 64 ksps), resolution, dithering, shutdown and other communication features.

特性 Features

Two simultaneously sampled 16/24-bit resolution delta-sigma A/D converters
Programmable data rate up to 64 ksps
Low drift Internal voltage reference (12 ppm/°C)
High Gain PGA on Each Channel (up to 32 V/V)
Phase delay compensation between channels with 1 μs resolution
Low power consumption (14mW at 5V)
High-Speed, Addressable 20 MHz SPI Interface
Available in Small 20-lead SSOP and QFN Packages
Extended Temperature Range: -40°C to +125°C

簡介

MCP3901屬于集成電路（IC）的模擬前端（AFE）。由制造生產(chǎn)的MCP3901模擬前端（AFE）模擬前端 (AFE) 是一種用于信號調(diào)節(jié)的半導(dǎo)體器件，由模擬放大器、運(yùn)算放大器、濾波器和集成電路構(gòu)成。這種可配置功能塊能連接各種傳感器。分辨率范圍從 8 位至 42 位不等，通道數(shù)范圍為 1 至 256 個(gè)。