ahmet2004
Member level 3
I have read back problem with ADC7825 which is 16-bit ADC, bipolar 10V. After interfacing with this chip, the read back values are as follow:
For -12V to 0 -> the read back value = 0 to 65536
For 0V to +12V -> the read back value = 0 to 65536
The problem is how to identify the polarity of input voltage? According to datasheet, the format of output is Binary Two's Complements.
For -12V to 0 -> the read back value = 0 to 65536
For 0V to +12V -> the read back value = 0 to 65536
The problem is how to identify the polarity of input voltage? According to datasheet, the format of output is Binary Two's Complements.