I want to design CMOS Inverter which gives:
0 volt input --> 5 V output
Any positive input voltage above threshold voltage --> 0 V output.
Edit: Setting both signals to DC coupling
Now it is showing 5 V signal at oscilloscope, while the probe shows 2.5 V DC. Strange? and still there is distortion.
Note: I have to apply 5 V at input or bigger. Why is that? Threshold voltages of transistors are usually not that big.