| v {xschem version=3.0.0 file_version=1.2 } |
| G {} |
| K {} |
| V {} |
| S {} |
| E {} |
| B 2 640 -140 1440 260 {flags=graph |
| y1=0 |
| y2=2 |
| ypos1=0 |
| ypos2=2 |
| divy=5 |
| subdivy=1 |
| unity=1 |
| x1=9.59762e-05 |
| x2=0.000109925 |
| divx=5 |
| subdivx=1 |
| node="PIXEL_OUT,col0x7x,col0x6x,col0x5x,col0x4x,col0x3x,col0x2x,col0x1x,col0x0x |
| read" |
| color="4 5" |
| dataset=0 |
| unitx=u |
| digital=1} |
| B 2 640 -570 1440 -170 {flags=graph |
| y1=0 |
| y2=2 |
| ypos1=0 |
| ypos2=2 |
| divy=5 |
| subdivy=1 |
| unity=1 |
| x1=9.59762e-05 |
| x2=0.000109925 |
| divx=5 |
| subdivx=1 |
| node="" |
| color="" |
| dataset=0 |
| unitx=u |
| } |
| N -140 130 -120 130 { |
| lab=#net1} |
| N -140 150 -120 150 { |
| lab=#net2} |
| N -140 110 -120 110 { |
| lab=#net3} |
| N 180 250 200 250 { |
| lab=#net4} |
| N 180 230 200 230 { |
| lab=#net5} |
| N 180 210 200 210 { |
| lab=#net6} |
| N 180 190 200 190 { |
| lab=#net7} |
| N 180 170 200 170 { |
| lab=#net8} |
| N 180 150 200 150 { |
| lab=#net9} |
| N 180 130 200 130 { |
| lab=#net10} |
| N 180 110 200 110 { |
| lab=#net11} |
| N -310 150 -300 150 { |
| lab=GND} |
| N -90 20 -70 20 { |
| lab=GRAY_IN[7:0]} |
| N -920 -120 -910 -120 { |
| lab=VCC} |
| N -870 -100 -860 -100 { |
| lab=VCC} |
| N -830 -80 -820 -80 { |
| lab=VCC} |
| N -850 -120 -760 -120 { |
| lab=#net12} |
| N -800 -100 -760 -100 { |
| lab=#net13} |
| N -780 -140 -760 -140 { |
| lab=VDD} |
| N -110 -40 -70 -40 { |
| lab=BIAS1_OUT} |
| N -110 -20 -70 -20 { |
| lab=BIAS2_OUT} |
| N 0 -210 0 -190 { |
| lab=RAMP} |
| N -110 0 -70 -0 { |
| lab=RAMP} |
| N 0 -330 0 -310 { |
| lab=READ} |
| N -380 -340 -380 -320 { |
| lab=TEST} |
| N -110 -60 -70 -60 { |
| lab=TEST} |
| N 230 -60 250 -60 { |
| lab=OUT[7:0]} |
| N 80 470 100 470 { |
| lab=SA_VREF} |
| N 80 450 100 450 { |
| lab=OUT[7:0]} |
| N 400 450 420 450 { |
| lab=COL0[7:0]} |
| N 80 490 100 490 { |
| lab=SA_IREF_OUT} |
| N -120 340 -120 360 { |
| lab=SA_VREF} |
| N -110 40 -70 40 { |
| lab=READ} |
| N -300 -500 -300 -480 { |
| lab=#net14} |
| N -300 -500 -220 -500 { |
| lab=#net14} |
| N -160 -500 20 -500 { |
| lab=CLK} |
| N -390 -560 -390 -540 { |
| lab=#net15} |
| N -390 -560 -190 -560 { |
| lab=#net15} |
| N -190 -560 -190 -540 { |
| lab=#net15} |
| C {devices/vsource.sym} -60 -160 0 0 {name=V8 value=1.8 net_name=true} |
| C {devices/gnd.sym} -60 -130 0 0 {name=l6 lab=GND} |
| C {devices/vdd.sym} -60 -190 0 0 {name=l37 lab=VDD} |
| C {digital_prims/adc_bridge.sym} -230 150 0 0 {name=x6} |
| C {devices/lab_pin.sym} -300 110 0 0 {name=p24 lab=VCC} |
| C {digital_prims/adc_bridge.sym} -230 110 0 0 {name=x8} |
| C {digital_prims/adc_bridge.sym} -230 130 0 0 {name=x7} |
| C {devices/lab_pin.sym} 360 250 2 0 {name=l70 sig_type=std_logic lab=GRAY_IN[0]} |
| C {adc/8bit_graycounter.sym} 30 180 0 0 {name=x10} |
| C {devices/gnd.sym} -310 150 1 0 {name=l71 lab=GND} |
| C {devices/lab_pin.sym} 360 230 2 0 {name=l72 sig_type=std_logic lab=GRAY_IN[1]} |
| C {devices/lab_pin.sym} 360 210 2 0 {name=l73 sig_type=std_logic lab=GRAY_IN[2]} |
| C {devices/lab_pin.sym} 360 190 2 0 {name=l74 sig_type=std_logic lab=GRAY_IN[3]} |
| C {devices/lab_pin.sym} 360 170 2 0 {name=l75 sig_type=std_logic lab=GRAY_IN[4]} |
| C {devices/lab_pin.sym} 360 150 2 0 {name=l76 sig_type=std_logic lab=GRAY_IN[5]} |
| C {devices/lab_pin.sym} 360 130 2 0 {name=l77 sig_type=std_logic lab=GRAY_IN[6]} |
| C {devices/lab_pin.sym} 360 110 2 0 {name=l78 sig_type=std_logic lab=GRAY_IN[7]} |
| C {devices/lab_pin.sym} -300 130 0 0 {name=l79 sig_type=std_logic lab=CLK} |
| C {digital_prims/dac_bridge.sym} 350 110 0 0 {name=x5} |
| C {digital_prims/dac_bridge.sym} 350 130 0 0 {name=x9} |
| C {digital_prims/dac_bridge.sym} 350 150 0 0 {name=x11} |
| C {digital_prims/dac_bridge.sym} 350 170 0 0 {name=x12} |
| C {digital_prims/dac_bridge.sym} 350 190 0 0 {name=x13} |
| C {digital_prims/dac_bridge.sym} 350 210 0 0 {name=x14} |
| C {digital_prims/dac_bridge.sym} 350 230 0 0 {name=x15} |
| C {digital_prims/dac_bridge.sym} 350 250 0 0 {name=x16} |
| C {devices/lab_pin.sym} -90 20 0 0 {name=l1 sig_type=std_logic lab=GRAY_IN[7:0]} |
| C {devices/netlist_options.sym} -860 320 0 0 { |
| bus_replacement_char="xx" |
| |
| } |
| C {devices/code_shown.sym} -850 430 0 0 {name=SPICE only_toplevel=false value=" |
| .param per = 0.1u |
| .param t_start = 4u |
| |
| .param num_bits=8 |
| .param num_rows = 1 |
| .param num_cols = 1 |
| |
| .param ramp_low=400m |
| .param ramp_high=1000m |
| .param t_read=2u |
| |
| .param t_ramp = \{per * pow(2,num_bits)\} |
| .param read_start = \{t_start + t_ramp\} |
| .param pixel_rate = \{t_ramp + t_read*num_rows\} |
| "} |
| C {devices/code.sym} -400 520 0 0 {name=TT_MODELS1 |
| only_toplevel=true |
| format="tcleval( @value )" |
| value=" |
| ** opencircuitdesign pdks install |
| .lib $::SKYWATER_MODELS/sky130.lib.spice tt |
| .global vcc |
| .global vdd |
| .global gnd |
| " |
| spice_ignore=false} |
| C {devices/code.sym} -400 360 0 0 {name=STIMULI1 |
| only_toplevel=true |
| place=end |
| value=" |
| .options gmin=10e-20 |
| .control |
| save all |
| |
| *dc v2 0 1.8 0.05 |
| *plot v(test) |
| tran 1u 200u |
| |
| write adc_layout_tb.raw |
| .endc |
| "} |
| C {devices/isource.sym} -880 -120 3 0 {name=I1 value=100n} |
| C {devices/lab_pin.sym} -920 -120 3 0 {name=p12 lab=VCC} |
| C {devices/isource.sym} -830 -100 3 0 {name=I3 value=40n} |
| C {devices/lab_pin.sym} -870 -100 3 0 {name=p3 lab=VCC} |
| C {devices/isource.sym} -790 -80 3 0 {name=I8 value=100n} |
| C {devices/lab_pin.sym} -830 -80 3 0 {name=p13 lab=VCC} |
| C {devices/lab_pin.sym} -460 -140 2 0 {name=l40 sig_type=std_logic lab=NB1} |
| C {devices/lab_pin.sym} -460 -120 2 0 {name=l55 sig_type=std_logic lab=NB2} |
| C {devices/lab_pin.sym} -460 -60 2 0 {name=l56 lab=BIAS2_OUT} |
| C {devices/lab_pin.sym} -460 -100 2 0 {name=l57 lab=SF_IB} |
| C {devices/lab_pin.sym} -460 -80 2 0 {name=l58 lab=BIAS1_OUT} |
| C {devices/lab_pin.sym} -460 -40 2 0 {name=l59 lab=SA_IREF_OUT} |
| C {devices/vdd.sym} -780 -140 3 0 {name=l2 lab=VDD} |
| C {devices/lab_pin.sym} -110 -40 0 0 {name=l3 lab=BIAS1_OUT} |
| C {devices/lab_pin.sym} -110 -20 0 0 {name=l4 lab=BIAS2_OUT} |
| C {devices/vsource.sym} 0 -160 0 0 {name=V2 value="PULSE(\{ramp_low\} \{ramp_high\} \{t_start\} \{t_ramp\} 0.01u \{pixel_rate-t_ramp\} \{pixel_rate\})"} |
| C {devices/gnd.sym} 0 -130 0 0 {name=l15 lab=GND} |
| C {devices/lab_pin.sym} 0 -210 2 0 {name=l16 sig_type=std_logic lab=RAMP} |
| C {devices/lab_pin.sym} -110 0 0 0 {name=l5 sig_type=std_logic lab=RAMP} |
| C {devices/vsource.sym} 0 -280 0 0 {name=V7 value="PULSE(0 1.8 \{read_start\} 0.01u 0.01u \{t_read\} \{pixel_rate\})"} |
| C {devices/gnd.sym} 0 -250 0 0 {name=l24 lab=GND} |
| C {devices/lab_pin.sym} 0 -330 2 0 {name=l33 sig_type=std_logic lab=READ} |
| C {devices/spice_probe.sym} 0 -320 3 0 {name=p20 attrs=""} |
| C {devices/vsource.sym} -380 -290 0 0 {name=V1 value=900m} |
| C {devices/gnd.sym} -380 -260 0 0 {name=l7 lab=GND} |
| C {devices/lab_pin.sym} -380 -340 2 0 {name=l8 sig_type=std_logic lab=TEST} |
| C {devices/spice_probe.sym} -380 -330 3 0 {name=p1 attrs=""} |
| C {devices/lab_pin.sym} -110 -60 0 0 {name=l9 sig_type=std_logic lab=TEST} |
| C {devices/lab_pin.sym} 250 -60 2 0 {name=l10 sig_type=std_logic lab=OUT[7:0]} |
| C {devices/opin.sym} 420 450 0 0 {name=p6 lab=COL0[7:0]} |
| C {devices/lab_pin.sym} 80 470 0 0 {name=l34 sig_type=std_logic lab=SA_VREF} |
| C {devices/lab_pin.sym} 80 450 0 0 {name=l39 sig_type=std_logic lab=OUT[7:0]} |
| C {devices/lab_pin.sym} 80 490 0 0 {name=l41 sig_type=std_logic lab=SA_IREF_OUT} |
| C {devices/vsource.sym} -120 390 0 0 {name=V3 value=600m} |
| C {devices/gnd.sym} -120 420 0 0 {name=l11 lab=GND} |
| C {devices/lab_pin.sym} -120 340 2 0 {name=l12 sig_type=std_logic lab=SA_VREF} |
| C {devices/spice_probe.sym} -120 350 3 0 {name=p2 attrs=""} |
| C {devices/lab_pin.sym} -110 40 0 0 {name=l13 sig_type=std_logic lab=READ} |
| C {devices/vsource.sym} -300 -450 0 0 {name=V4 value="PULSE(0 1.8 \{t_start\} 0.01u 0.01u \{per/2\} \{per\})"} |
| C {devices/gnd.sym} -300 -420 0 0 {name=l23 lab=GND} |
| C {devices/vsource.sym} -390 -510 0 0 {name=V5 value="PULSE(2 0 \{read_start\} 0.01us 0.01us \{pixel_rate-t_ramp\} \{pixel_rate\})"} |
| C {devices/gnd.sym} -390 -480 0 0 {name=l18 lab=GND} |
| C {devices/lab_pin.sym} 20 -500 2 0 {name=l42 sig_type=std_logic lab=CLK} |
| C {devices/spice_probe.sym} -110 -500 3 0 {name=p22 attrs=""} |
| C {sky130_fd_pr/nfet3_01v8_lvt.sym} -190 -520 1 0 {name=M1 |
| L=1 |
| W=5 |
| nf=1 |
| mult=1 |
| body=GND |
| ad="'int((nf+1)/2) * W/nf * 0.29'" |
| pd="'2*int((nf+1)/2) * (W/nf + 0.29)'" |
| as="'int((nf+2)/2) * W/nf * 0.29'" |
| ps="'2*int((nf+2)/2) * (W/nf + 0.29)'" |
| nrd="'0.29 / W'" nrs="'0.29 / W'" |
| sa=0 sb=0 sd=0 |
| model=nfet_01v8_lvt |
| spiceprefix=X |
| } |
| C {devices/vsource.sym} -130 -160 0 0 {name=V6 value=1.8 net_name=true} |
| C {devices/gnd.sym} -130 -130 0 0 {name=l14 lab=GND} |
| C {devices/vdd.sym} -130 -190 0 0 {name=l17 lab=VCC} |
| C {post_layout/adc_layout.sym} 80 -10 0 0 {name=x1} |
| C {post_layout/8bit_SA_conv_layout.sym} 250 470 0 0 {name=x2} |
| C {post_layout/bias_layout.sym} -610 -90 0 0 {name=x3} |
