LTSpice_with_Python

LTSpice with hand calculations is not enough, so Python come for the rescue! Link to the repository.

NOTE: This repository’s author gratefully wants to thank Nuno Brum for his library of PyLTSpice. Without his great work, this project would not become possible.

Char_NMOS/PMOS_Vth_kn

The tool for finding the threshold voltage (V_th) and the transconductance (k_n) of an NMOS/PMOS. (The k_n found does not account for the Early effect, so if you want it to be more accurate, the k_n must be divided by (1 + lambda*V_ds) where lambda = 1/V_A.) Link.

Char_NMOS/PMOS_VA

The tool for finding the Early voltage (V_A) and of an NMOS/PMOS. Link.

1_AC_Sweep

This tool evaluates the DC gain, crossover frequency and phase margin of an op-amp open-loop gain at various input and output DC voltage with variation of supply voltage, temperature and process corner of CMOS. Link.

2_Power

This tool evaluates power usage of an op-amp. Link.

3_Noise

This tool evaluates input-referred noise of an op-amp. Link.

4_Settling_Time

This tool evaluates settling time of a closed-loop op-amp when the step input is 0.5 V. Link.

5_Fourier

This tool evaluates total harmonic distortion of an output wave when its swing is maximized to (V_DD - 0.2) V. The input frequency is 1 kHz and evaluation time is 10 ms. Link.