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Analogue to Digital and Digital to Analogue ConversionThe PCF8591 is a 4 channel analogue to digital (ADC) and 1 channel digital to analogue converter (DAC). ADC and DAC have 8 bit resolution. The PCB card already contains 3 devices that can be connected via jumpers to the ADC inputs:
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< < | I used the forth channel to feed back the DAC output. | ||||||||||
> > | I used the free channel to feed back the DAC output. | ||||||||||
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