# Why is this LTSPICE model not working?

How do I simulate the above circuit in LTSPICE? The way I have it set up right now gives me a singular matrix error which I don't understand. Vi is a AC signal with a frequency of 100kHz and a small amplitude of less than 10mV.

• Consider showing the error and code so people can maybe see what the issue is. What they won't do is build the model for you from the question you copied... – Solar Mike Mar 8 '18 at 8:18
• You're right. I'll revise it. – Josue Rodriguez Mar 8 '18 at 8:19
• gommer's answer is the one you're looking for, but also consider you may need a DC path for the output reading. For example, a 1g resistor in parallel with the 10n capacitor. – a concerned citizen Mar 9 '18 at 7:06