Version 4 SHEET 1 2120 2120 WIRE 1408 656 1408 624 WIRE 1552 656 1552 624 WIRE 1712 656 1712 624 WIRE 1872 656 1872 624 WIRE 2016 656 2016 624 WIRE 1408 768 1408 736 WIRE 1552 768 1552 736 WIRE 1712 768 1712 736 WIRE 1872 768 1872 736 WIRE 2016 768 2016 736 WIRE 80 832 48 832 WIRE 144 832 80 832 WIRE 272 832 208 832 WIRE 864 848 864 784 WIRE 656 896 656 864 WIRE 800 896 656 896 WIRE 656 928 656 896 WIRE 1088 944 1008 944 WIRE 1232 944 1168 944 WIRE 80 960 80 832 WIRE 144 960 80 960 WIRE 272 976 272 832 WIRE 272 976 208 976 WIRE 352 976 272 976 WIRE 592 976 432 976 WIRE -80 992 -272 992 WIRE 80 992 0 992 WIRE 144 992 80 992 WIRE -272 1008 -272 992 WIRE 864 1088 864 944 WIRE 1008 1088 1008 944 WIRE 1008 1088 864 1088 WIRE 656 1104 656 1024 WIRE 1504 1120 1328 1120 WIRE 80 1136 80 992 WIRE 80 1136 0 1136 WIRE 1008 1136 1008 1088 WIRE 80 1200 80 1136 WIRE 288 1200 80 1200 WIRE 352 1200 288 1200 WIRE 480 1200 432 1200 WIRE 864 1200 864 1088 WIRE 864 1200 480 1200 WIRE 1328 1200 1328 1120 WIRE 1376 1200 1328 1200 WIRE 1504 1216 1504 1120 WIRE 1504 1216 1440 1216 WIRE 1584 1216 1504 1216 WIRE 1712 1216 1664 1216 WIRE 1008 1232 1008 1216 WIRE 1216 1232 1008 1232 WIRE 1376 1232 1216 1232 WIRE 1008 1264 1008 1232 WIRE -144 1328 -224 1328 WIRE -80 1328 -144 1328 WIRE 80 1328 80 1200 WIRE 80 1328 0 1328 WIRE 288 1328 288 1200 WIRE 368 1328 288 1328 WIRE 480 1328 480 1200 WIRE 480 1328 432 1328 WIRE 1504 1376 1328 1376 WIRE 1328 1456 1328 1376 WIRE 1376 1456 1328 1456 WIRE 1504 1472 1504 1376 WIRE 1504 1472 1440 1472 WIRE 1584 1472 1504 1472 WIRE 1712 1472 1664 1472 WIRE 1216 1488 1216 1232 WIRE 1376 1488 1216 1488 FLAG 1408 768 0 FLAG 1552 768 0 FLAG 1408 624 +15V FLAG 1552 624 -15V FLAG -144 1392 0 FLAG -32 832 0 FLAG 656 1104 0 FLAG 1008 1344 0 FLAG -272 1088 0 FLAG 176 944 +15V FLAG 176 1008 -15V FLAG 1408 1184 +15V FLAG 1408 1248 -15V FLAG 1408 1440 +15V FLAG 1408 1504 -15V FLAG 1712 768 0 FLAG 1712 624 +100V FLAG 656 784 +100V FLAG 864 784 +100V FLAG 1712 1216 M1_PIT_MON IOPIN 1712 1216 Out FLAG 1712 1472 J8A_LEMO-DUAL IOPIN 1712 1472 Out FLAG 1232 944 J1_SMB IOPIN 1232 944 Out FLAG 1872 768 0 FLAG 1872 624 M1_PIT_BIAS FLAG -80 1136 M1_PIT_BIAS FLAG 2016 768 0 FLAG 2016 624 DC_OFFSET FLAG -224 1328 DC_OFFSET SYMBOL voltage 1408 640 R0 SYMATTR InstName V2 SYMATTR Value +15V SYMBOL voltage 1552 640 R0 SYMATTR InstName V3 SYMATTR Value -15V SYMBOL npn 592 928 R0 SYMATTR InstName Q1 SYMBOL npn 800 848 R0 SYMATTR InstName Q2 SYMBOL voltage -272 992 R0 SYMATTR InstName Vin SYMATTR Value SINE(0 0) SYMATTR Value2 AC 0 SYMBOL res -48 848 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R31 SYMATTR Value 1k SYMBOL res -96 1008 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R32 SYMATTR Value 10.5k SYMBOL res -96 1152 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R33 SYMATTR Value 10.5k SYMBOL res -96 1344 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R34 SYMATTR Value 10.5k SYMBOL res 336 1216 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R43 SYMATTR Value 51k SYMBOL res 336 992 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R46 SYMATTR Value 3.01k SYMBOL res 640 768 R0 SYMATTR InstName R47 SYMATTR Value 100k SYMBOL res 992 1120 R0 SYMATTR InstName R13 SYMATTR Value 464k SYMBOL res 992 1248 R0 SYMATTR InstName R19 SYMATTR Value 33.2k SYMBOL res 1568 1232 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL res 1568 1488 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 100 SYMBOL res 1072 960 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R7 SYMATTR Value 100 SYMBOL cap -128 1392 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C7 SYMATTR Value 0.1µ SYMBOL cap 208 816 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C10 SYMATTR Value 0.01µ SYMBOL cap 432 1312 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C12 SYMATTR Value 470p SYMBOL Opamps/OP27 176 912 R0 SYMATTR InstName U5 SYMBOL Opamps/OP27 1408 1152 R0 SYMATTR InstName U6 SYMBOL Opamps/OP27 1408 1408 R0 SYMATTR InstName U7 SYMBOL voltage 1712 640 R0 SYMATTR InstName V4 SYMATTR Value +30V SYMBOL voltage 1872 640 R0 SYMATTR InstName V5 SYMATTR Value +0V SYMBOL voltage 2016 640 R0 SYMATTR InstName V6 SYMATTR Value -10V TEXT -360 840 Left 2 !.dc Vin -10 10 0.1