Version 4 SHEET 1 2216 824 WIRE 1760 16 1760 -32 WIRE 1072 32 1072 -16 WIRE 1584 144 1584 96 WIRE 896 160 896 112 WIRE 1760 176 1760 96 WIRE 1840 176 1760 176 WIRE 1856 176 1840 176 WIRE 544 192 544 112 WIRE 1072 192 1072 112 WIRE 1152 192 1072 192 WIRE 1168 192 1152 192 WIRE 1760 192 1760 176 WIRE 1072 208 1072 192 WIRE 1584 272 1584 224 WIRE 1664 272 1584 272 WIRE 1712 272 1664 272 WIRE 896 288 896 240 WIRE 976 288 896 288 WIRE 1024 288 976 288 WIRE 1584 320 1584 272 WIRE 1760 320 1760 288 WIRE 896 336 896 288 WIRE 544 384 544 272 WIRE 1584 448 1584 400 WIRE 1760 448 1760 400 WIRE 896 464 896 416 WIRE 1072 464 1072 304 FLAG 1152 192 OUT_NoRs FLAG 1072 464 0 FLAG 544 384 0 FLAG 544 112 VDD FLAG 1072 -16 VDD FLAG 1840 176 OUT_wRs FLAG 1760 448 0 FLAG 1760 -32 VDD FLAG 896 464 0 FLAG 896 112 VDD FLAG 1584 448 0 FLAG 1584 96 VDD FLAG 976 288 G1 FLAG 1664 272 G2 SYMBOL nmos 1024 208 R0 SYMATTR InstName M1 SYMATTR Value nmos1 L=100u W=100u SYMBOL res 1088 128 R180 WINDOW 0 -53 79 Left 2 WINDOW 3 -162 38 Left 2 SYMATTR InstName RD1 SYMATTR Value {mc(2k,0.05)} SYMBOL voltage 544 176 R0 SYMATTR InstName Vps1 SYMATTR Value 15V SYMBOL nmos 1712 192 R0 SYMATTR InstName M2 SYMATTR Value nmos1 L=100u W=100u SYMBOL res 1776 112 R180 WINDOW 0 -59 83 Left 2 WINDOW 3 -166 37 Left 2 SYMATTR InstName RD2 SYMATTR Value {mc(2k,0.05)} SYMBOL res 912 256 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName RG1 SYMATTR Value {mc(1.5Meg,0.05)} SYMBOL res 912 432 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName RG2 SYMATTR Value {mc(500k,0.05)} SYMBOL res 1600 240 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName RG3 SYMATTR Value {mc(1.0Meg,0.05)} SYMBOL res 1600 416 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName RG4 SYMATTR Value {mc(2Meg,0.05)} SYMBOL res 1776 416 R180 WINDOW 0 -39 82 Left 2 WINDOW 3 -163 35 Left 2 SYMATTR InstName RS SYMATTR Value {mc(2k,0.05)} TEXT 1096 544 Left 2 !.model nmos1 nmos (kp=2m Vto=+2V lambda=0) TEXT 1336 600 Left 2 !.OP TEXT 1240 648 Left 2 !.STEP param run 1 101 1