what happen when Inverter output shorted to input

[Sambhav_1]

Hi,

I want to know what will happen when the inverter output is shorted to input. and what is the application of this circuit? According to me,it will settle where Vout=Vin. Correct me if i am wrong.

Regards

 

[BradtheRad]

I think you're referring to an invert gate?
There is in fact a workable analog amplifier design based on 3 such gates in series. In particular the 4069 UBE (unbuffered). A couple of resistors form a suitable feedback circuit as you describe, so that both input and output hover at 1/2 supply voltage. The unbuffered version permits this condition.

I saw it in a Forrest Mims book. He calls it an analog role for a digital IC.

Results with a buffered invert gate are hard to predict.

 

[deep_sea]

Hi,

I want to know what will happen when the inverter output is shorted to input. and what is the application of this circuit? According to me,it will settle where Vout=Vin. Correct me if i am wrong.

Regards

If you have an odd number of inverters, you will have a ring oscillator.