Hello everyone,I ues 74HCT4051 as Multiplex analog switch,I have followed the circuit structure you recommended, but the output voltage is still not ideal.I hope you can give me some Suggestions to solve this problem,thank you very much.
The circuit structure diagram and DC simulation results are shown below:
Fig 1 1MΩ connect to the Ground.
Input resister value of R5
Fig 2 DC simulation result of fig1
Fig 3 Directly connect to the Ground.
Fig 4 DC simulation result of fig3