| *************************** |
| ** nmos_3p3_cv |
| *************************** |
| * Copyright 2022 Efabless Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| ** library calling |
| |
| .include "../../../design.ngspice" |
| .lib "../../../sm141064.ngspice" typical |
| |
| |
| ** Circuit Description ** |
| * power supply |
| vds D_tn 0 dc=3.3 |
| vgs G_tn 0 dc=3.3 |
| vs S_tn 0 dc=0.2 |
| |
| .temp 25 |
| .options tnom=25 |
| |
| *l_diff_min = 0.24 |
| * ad = int((nf+1)/2) * width/nf * 0.24 = 24u |
| * pd = (int((nf+1)/2) * width/nf + 0.24)*2 = 200.48u |
| |
| * circuit |
| mn D_tn G_tn S_tn S_tn nmos_3p3 W = 200u L = 0.28u nf=20 ad= 24u pd=200.48u as=24u ps=200.48u |
| |
| .control |
| set filetype=ascii |
| |
| let vds_min = 0 |
| let vds_step = 0.1 |
| let vds_max = 3.3 |
| |
| compose vgs_vector start=0 stop=3.3 step=1 |
| |
| set appendwrite |
| |
| foreach t 25 |
| |
| let vgs_counter = 0 |
| while vgs_counter < length(vgs_vector) |
| option TEMP=25 |
| alter vgs = vgs_vector[vgs_counter] |
| |
| save @mn[vds] @mn[vgs] @mn[id] @mn[cgd] |
| ******************* |
| ** simulation part |
| ******************* |
| DC vds $&vds_min $&vds_max $&vds_step |
| |
| * ** parameters calculation |
| |
| print @mn[cgd] |
| |
| wrdata nmos_3p3_cv/simulated_Cgd/{{i}}_simulated_W{{width}}_L{{length}}.csv {@mn[cgd]*1e15} |
| |
| reset |
| let vgs_counter = vgs_counter + 1 |
| end |
| end |
| .endc |
| .end |
