Other Parts Discussed in Thread: CD74HC4051, TMUX1308
My customer meet some problem in using CD4051, the schematic diagram as below:
and they find Input and output voltage deviation problem,data show below:
output link to MCU(Large input impedance)and I think high Ron is doesn't matter, so I would like to know what cause voltage deviation.
(I know that lower than 3v may cause abnormality, but I want to know what is the reason? And there will be a small voltage drop in the 3V power supply, the output signal enters the ADC of the MCU, the customer does not want to see the voltage drop）
thanks for your help in advance.