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bgr_lvt_rpolyh_3p40.sp
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bgr_lvt_rpolyh_3p40.sp
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**** bandgap reference circuit using self-biase current mirror *****
.lib "/home/srath22/cad/eda-technology/sky130/models/spice/models/sky130.lib.spice tt"
.include "/home/srath22/cad/eda-technology/sky130/models/spice/models/sky130_fd_pr__model__pnp.model.spice"
.global vdd gnd
.temp 27
*** circuit definition ***
*** mosfet definitions self-biased current mirror and output branch
xmp1 net1 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt l=2 w=5 m=4
xmp2 net2 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt l=2 w=5 m=4
xmp3 net3 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt l=2 w=5 m=4
xmn1 net1 net1 q1 gnd sky130_fd_pr__nfet_01v8_lvt l=1 w=5 m=8
xmn2 net2 net1 q2 gnd sky130_fd_pr__nfet_01v8_lvt l=1 w=5 m=8
*** start-upcircuit
xmp4 net4 net2 vdd vdd sky130_fd_pr__pfet_01v8_lvt l=2 w=5 m=1
xmp5 net5 net2 net4 vdd sky130_fd_pr__pfet_01v8_lvt l=2 w=5 m=1
xmp6 net7 net6 net2 vdd sky130_fd_pr__pfet_01v8_lvt l=2 w=5 m=2
xmn3 net6 net6 net8 gnd sky130_fd_pr__nfet_01v8_lvt l=7 w=1 m=1
xmn4 net8 net8 gnd gnd sky130_fd_pr__nfet_01v8_lvt l=7 w=1 m=1
*** bjt definition
xqp1 gnd gnd qp1 vdd sky130_fd_pr__pnp_05v5_W3p40L3p40 m=1
xqp2 gnd gnd qp2 vdd sky130_fd_pr__pnp_05v5_W3p40L3p40 m=8
xqp3 gnd gnd qp3 vdd sky130_fd_pr__pnp_05v5_W3p40L3p40 m=1
*** high-poly resistance definition
xra1 ra1 na1 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xra2 na1 na2 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xra3 na2 qp2 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xra4 na2 qp2 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb1 vref nb1 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb2 nb1 nb2 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb3 nb2 nb3 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb4 nb3 nb4 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb5 nb4 nb5 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb6 nb5 nb6 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb7 nb6 nb7 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb8 nb7 nb8 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb9 nb8 nb9 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb10 nb9 nb10 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb11 nb10 nb11 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb12 nb11 nb12 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb13 nb12 nb13 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb14 nb13 nb14 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb15 nb14 nb15 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb16 nb15 nb16 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb17 nb16 qp3 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
xrb18 nb16 qp3 vdd sky130_fd_pr__res_high_po_1p41 w=1.41 l=7.8
*** voltage source for current measurement
vid1 q1 qp1 dc 0
vid2 q2 ra1 dc 0
vid3 net3 vref dc 0
vid4 net7 net1 dc 0
vid5 net5 net6 dc 0
*** supply voltage
vsup vdd gnd dc 2
*.dc vsup 0 3.3 0.3.3
.dc temp -40 125 5
*vsup vdd gnd pulse 0 2 10n 1u 1u 1m 100u
*.tran 5n 10u
.control
run
plot v(vdd) v(net1) v(net2) v(qp1) v(ra1) v(qp2) v(vref) v(qp3)
plot vid1#branch vid2#branch vid3#branch vid4#branch vid5#branch
.endc
.end