描述 Description

The MCP3903 six channel analog front end, ideal for three phase energy measurement, power monitoring, and other applications requiring multiple high accuracy ADCs. The MCP3903 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 MCP3903 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

Six simultaneously sampled 16/24-bit resolution delta-sigma A/D converters
Programmable data rate up to 64 ksps
Internal voltage reference with low drift of 5 ppm/°C
Internal PGAs on each channel with gain of 32 V/V
Phase delay compensation between channels with 1 μs resolution
Available in a 7.8 x 10.2 mm SSOP package
Extended Temperature Range: -40°C to +125°C

簡(jiǎn)介

MCP3903屬于集成電路（IC）的模擬前端（AFE）。由制造生產(chǎn)的MCP3903模擬前端（AFE）模擬前端 (AFE) 是一種用于信號(hào)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)。