islam0mar / gm_id_kit.jl

Julia port of Prof. Boris Murmann's gm/ID Starter Kit https://web.stanford.edu/~murmann/gmid

Gm_ID_kit

Port from Gm/ID Starter Kit

Examples

After loading .mat file.

using Gm_ID_kit
nch = ParseMAT(joinpath(dirname(pathof(Gm_ID_kit)), "..", "test", "180nch.mat"), "nch")

LookUp

ID = LookUp(nch, "ID"; VGS = 0.6, L = 0.28)[1]
GM_CGG = LookUp(nch, "GM_CGG"; VGS = 0.6, L = 0.28)[1]
GM_CDD = LookUp(nch, "GM_CDD", "GM_ID", 15.0; VDS = 0.6, L = 0.28)[1]

LookUpVGS

VGS = LookUpVGS(nch; GM_ID = 10, VDS = 0.6, VSB = 0.1, L = 0.18)[1]
VGS = LookUpVGS(nch; GM_ID = 10.0, VDB = 0.6, VGB = 1.0, L = 0.18)[1]

Plot

# Plot ID versus VDS
vds = nch["VDS"]
vgs = collect(0.4:0.05:0.6)
ID = LookUp(nch, "ID"; VDS=vds, VGS=vgs)
plot(vds, ID[1,1,:,1], label="VGS=$(vgs[1])")
plot!(vds, ID[1,2,:,1], label="VGS=$(vgs[2])")
plot!(vds, ID[1,3,:,1], label="VGS=$(vgs[3])")
plot!(vds, ID[1,4,:,1], label="VGS=$(vgs[4])")
plot!(vds, ID[1,5,:,1], label="VGS=$(vgs[5])")
# plot!(legend=:outerbottom, legendcolumns=5)
title!("ID vs VDS")
xlabel!("VDS")
ylabel!("ID")

for more see tests.

Motivation

To be used with JuMP.

TODO

• Refactor LookUp + unittest
• Refactor LookUpVGS + unittest
• Rename to GM_ID_Kit
• use Julia naming conventions
• Optimization with JuMP
• Extract LUTs from spice simulators
• Generate .mat files or better file format!
• Add examples
• Get rid of allocations

Copyright

Original MATLAB code: Copyright (c) 2019 Boris Murmann ([email protected])

Test example is taken from Analog/Mixed-Signal Simulation and Modeling Lab 04: Copyright (c) 2022 Dr. Hesham Omran ([email protected])

Copyright (c) 2022 Islam Omar ([email protected])