8 bit ADC spice model

[himadri_debnath]

I want to test my 8 bit DAC in LTspice. For that I need to apply 8 bit ADC output. But there are no 8bit ADC in LTspice XVII. Is there any website where I can find spice model for 8bit ADC?

 

[Dominik Przyborowski]

Why you need ADC?
You can measure output waveform in time with constant period and do whatever you want (FFT, linearity test, etc).
Also, if you want to set digital word, you can do it by voltage sources.

 

[himadri_debnath]

I am actually doing this. I just wanted to check sinusoidal variation and also wanted to compare the DAC output with ADC input

 

[Dominik Przyborowski]

I don't know if ltspice supports VerilogA, if yes then you can find a lot of ADC codes.
If not, pwl file sources are the solution. However, you will need to take sinusoid waveform, digitised it and save every bit into two column text file and use in pwl file sources.

 

[FvM]

You can write an ideal ADC model using LTspice behavioral sources.