Matrix - Analog to Digital Converter

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English

1 介绍

File:Adc.jpg
Analog to Digital Converter

我们把一颗SOIC-16封装的PFC8591T芯片放到一块小PCB上,并通过2.54mm排针引出了必要的信号。PFC8591T是一颗I2C接口的8位A/D和D/A转换器,包含4路A/D通道和1路D/A通道。我们直接引出了PFC8591T的电源、地、I2C,4路A/D通道和1路D/A通道的相应引脚。I2C地址被配置为1001000x,参考电压跟电源电压一样,即采集范围是地到电源。PFC8591T电源输入范围是2.5V-6.0V。2.54mm排针中的5V是电源输入脚,但是如果您需要采集0-3.3V的模拟信号,而又不想降低采集精度时,可以把电源输入改为3.3V。

2 特性

  • 宽电源电压输入,2.5V-6.0V
  • I2C接口,3.3V/5V
  • 8-bit A/D x4 和D/A x1
  • 体积小巧, 带固定孔,方便嵌入到外壳
  • 2.54mm排针接口,接线方便,通用性强