ADC0804 as 4bit ADC

Discussion in 'General Electronics Chat' started by keafeel, Mar 21, 2013.

  1. keafeel

    Thread Starter New Member

    Mar 21, 2013
    1
    0
    How to use ADC0804 as 4bit ADC. I heard that by changing the reference voltage the output of full scale input can be made as 4bit. But how to change the refernce voltage and how much should i change?
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,018
    3,235
    If you want only four bits, just use the four most-significant-bits (MSB) of that 8-bit converter. No need to change the reference voltage .
     
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