| * Copyright 2020 The SkyWater PDK Authors |
| * |
| * 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 |
| * |
| * https://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. |
| |
| * SKY130 Spice File. |
| * statistics { |
| * mismatch { |
| * } |
| * } |
| .subckt sky130_fd_pr__cap_vpp_02p4x04p6_m1m2_noshield c0 c1 b |
| + |
| .param mult = 1 presim_flag = 0.0 |
| + |
| + lvpp = 3.81 wm1 = 0.14 wm2 = 0.14 |
| + ctot_a = {4.37e-15*cvpp5_cor+0.0283/sqrt(4.38*2.69*2*mult)*4.37e-15*cvpp5_cor*sky130_fd_pr__cap_vpp_08p6x07p8_l1m1m2_noshield_o1__generic_slope} |
| + rat_m2 = 0.5767 |
| + rat_m1 = 0.4233 |
| + cap_m2 = {rat_m2*ctot_a} |
| + cap_m1 = {rat_m1*ctot_a} |
| + capc0_m1 = {(0.27+presim_flag*0.02)*1e-15*cli2s_vpp} |
| + capc1_m1 = {(0.72+presim_flag*0.12)*1e-15*cli2s_vpp} |
| + nvia = 17.0 |
| + nf = 7.0 |
| rm21 c0 a1 r = {2*rm2*lvpp/wm2*(1/3)*(1/nf)} |
| ccmvpp5 a1 c1 c = {cap_m2} |
| rvia1 c0 d0 r = {rcvia/nvia} |
| rvia2 c1 d1 r = {rcvia/nvia} |
| rm11 d0 b1 r = {2*rm1*lvpp/wm1*(1/3)*(1/nf)} |
| cm1 b1 d1 c = {cap_m1} |
| csli1 d0 b c = {capc0_m1} |
| csli2 d1 b c = {capc1_m1} |
| .ends sky130_fd_pr__cap_vpp_02p4x04p6_m1m2_noshield |
