Add testbenches

Signed-off-by: Warrick Lo <wlo@warricklo.net>

1 files changed, 25 insertions, 0 deletions

diff --git a/schematic/opamp_tb_op.sch b/schematic/opamp_tb_op.sch
new file mode 100644
index 0000000..eca2f21
--- /dev/null
+++ b/schematic/opamp_tb_op.sch
@@ -0,0 +1,25 @@
+v {xschem version=3.4.8RC file_version=1.3}
+G {}
+K {}
+V {}
+S {}
+F {}
+E {}
+C {opamp.sym} 60 50 0 0 {name=x1}
+C {lab_wire.sym} 60 0 0 0 {name=p1 sig_type=std_logic lab=VDD}
+C {lab_wire.sym} 60 100 2 1 {name=p2 sig_type=std_logic lab=0}
+C {lab_wire.sym} 0 30 0 0 {name=p3 sig_type=std_logic lab=IN}
+C {lab_wire.sym} 0 70 0 0 {name=p4 sig_type=std_logic lab=IN}
+C {lab_wire.sym} 120 50 0 1 {name=p5 sig_type=std_logic lab=OUT}
+C {code_shown.sym} 180 0 0 0 {name=SPICE only_toplevel=false value=".LIB /usr/local/share/pdk/sky130A/libs.tech/ngspice/sky130.lib.spice tt
+
+.INCLUDE save_mos_params.spice
+.SAVE ALL
+
+.CONTROL
+OP
+WRITE opamp_tb_op.raw
+.ENDC
+
+VDD VDD 0 DC 1.8
+VIN IN 0 DC 0.9"}