Version 4 SHEET 1 2344 1928 WIRE 1008 928 848 928 WIRE 1392 928 1008 928 WIRE 1760 928 1392 928 WIRE 1904 928 1760 928 WIRE 2000 928 1904 928 WIRE 1392 944 1392 928 WIRE 848 960 848 928 WIRE 1088 976 1056 976 WIRE 1168 976 1152 976 WIRE 2000 976 2000 928 WIRE 1392 1040 1392 1024 WIRE 848 1088 848 1040 WIRE 1056 1088 1056 976 WIRE 1056 1088 848 1088 WIRE 1072 1088 1056 1088 WIRE 1168 1088 1168 976 WIRE 1168 1088 1152 1088 WIRE 1200 1088 1168 1088 WIRE 1296 1088 1280 1088 WIRE 1328 1088 1296 1088 WIRE 2000 1088 2000 1056 WIRE 1760 1120 1760 928 WIRE 1296 1168 1296 1088 WIRE 1312 1168 1296 1168 WIRE 1392 1168 1392 1136 WIRE 1392 1168 1376 1168 WIRE 1552 1168 1392 1168 WIRE 1648 1168 1552 1168 WIRE 1696 1168 1648 1168 WIRE 1392 1184 1392 1168 WIRE 1904 1200 1904 928 WIRE 1552 1232 1552 1168 WIRE 1648 1248 1648 1168 WIRE 1760 1248 1760 1216 WIRE 1840 1248 1760 1248 WIRE 1760 1264 1760 1248 WIRE 1392 1280 1392 1264 WIRE 1488 1280 1392 1280 WIRE 848 1312 848 1088 WIRE 1008 1312 1008 928 WIRE 672 1360 608 1360 WIRE 784 1360 752 1360 WIRE 1104 1360 1072 1360 WIRE 1184 1360 1104 1360 WIRE 1760 1360 1760 1344 WIRE 1760 1360 1264 1360 WIRE 1904 1360 1904 1296 WIRE 1904 1360 1760 1360 WIRE 2016 1360 1904 1360 WIRE 1392 1376 1392 1280 WIRE 1104 1392 1104 1360 WIRE 2016 1392 2016 1360 WIRE 608 1408 608 1360 WIRE 1760 1424 1760 1360 WIRE 848 1456 848 1408 WIRE 928 1456 848 1456 WIRE 1008 1456 1008 1408 WIRE 1008 1456 928 1456 WIRE 1392 1472 1392 1456 WIRE 1552 1472 1552 1328 WIRE 1552 1472 1392 1472 WIRE 1648 1472 1648 1312 WIRE 1648 1472 1552 1472 WIRE 1696 1472 1648 1472 WIRE 1904 1488 1904 1360 WIRE 1104 1504 1104 1472 WIRE 1392 1504 1392 1472 WIRE 2016 1504 2016 1472 WIRE 928 1520 928 1456 WIRE 608 1536 608 1488 WIRE 1760 1536 1760 1520 WIRE 1840 1536 1760 1536 WIRE 1760 1552 1760 1536 WIRE 928 1648 928 1600 WIRE 1392 1648 1392 1584 WIRE 1392 1648 928 1648 WIRE 1760 1648 1760 1632 WIRE 1760 1648 1392 1648 WIRE 1904 1648 1904 1584 WIRE 1904 1648 1760 1648 WIRE 2000 1648 1904 1648 WIRE 2000 1696 2000 1648 WIRE 2000 1792 2000 1776 FLAG 2000 1088 0 FLAG 2000 1792 0 FLAG 2016 1504 0 FLAG 1104 1504 0 FLAG 608 1536 0 FLAG 608 1360 IN FLAG 2016 1360 OUT SYMBOL NPN 1696 1120 R0 WINDOW 0 60 24 Left 2 WINDOW 3 60 68 Left 2 SYMATTR InstName Q5 SYMATTR Value 2N3904 SYMBOL npn 1840 1200 R0 SYMATTR InstName Q7 SYMATTR Value 2N2219A SYMBOL npn 1840 1488 R0 SYMATTR InstName Q8 SYMATTR Value 2N2219A SYMBOL PNP 1696 1520 M180 WINDOW 0 64 68 Left 2 WINDOW 3 68 28 Left 2 SYMATTR InstName Q6 SYMATTR Value 2N3906 SYMBOL VOLTAGE 2000 960 R0 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL voltage 2000 1680 R0 SYMATTR InstName V2 SYMATTR Value -10 SYMBOL RES 1376 1488 R0 SYMATTR InstName R11 SYMATTR Value 5K SYMBOL res 2000 1376 R0 SYMATTR InstName R14 SYMATTR Value 8 SYMBOL res 1376 1168 R0 SYMATTR InstName R9 SYMATTR Value 2K SYMBOL res 1376 1360 R0 SYMATTR InstName R10 SYMATTR Value 1K SYMBOL npn 1488 1232 R0 SYMATTR InstName Q4 SYMATTR Value 2N3904 SYMBOL npn 784 1312 R0 WINDOW 0 51 32 Left 2 WINDOW 3 48 66 Left 2 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL npn 1072 1312 M0 WINDOW 0 50 30 Left 2 WINDOW 3 48 64 Left 2 SYMATTR InstName Q2 SYMATTR Value 2N3904 SYMBOL res 832 944 R0 SYMATTR InstName R2 SYMATTR Value 200 SYMBOL res 912 1504 R0 SYMATTR InstName R3 SYMATTR Value 1K SYMBOL pnp 1328 1136 M180 WINDOW 0 52 69 Left 2 WINDOW 3 51 31 Left 2 SYMATTR InstName Q3 SYMATTR Value 2N3906 SYMBOL res 1088 1376 R0 SYMATTR InstName R6 SYMATTR Value 5K SYMBOL res 1280 1344 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 50K SYMBOL voltage 608 1392 R0 SYMATTR InstName V3 SYMATTR Value AC 1 SYMBOL res 768 1344 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 5K SYMBOL res 1376 928 R0 SYMATTR InstName R8 SYMATTR Value 100 SYMBOL res 1168 1072 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 9K SYMBOL cap 1376 1152 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 100p SYMBOL cap 1152 960 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 10p SYMBOL res 1744 1536 R0 SYMATTR InstName R13 SYMATTR Value 1K SYMBOL res 1744 1248 R0 SYMATTR InstName R12 SYMATTR Value 1K SYMBOL cap 1632 1248 R0 SYMATTR InstName C3 SYMATTR Value .001µ SYMBOL res 1296 1072 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 1K TEXT 1344 1816 Top 1 ;This example schematic is supplied for informational/educational purposes only. TEXT 568 1632 Left 2 !.noise V(out) V3 oct 100 1 20K TEXT 688 1696 Left 2 ;Total rms noise can can be integrated by control right clicking the output data noise historgrams\nor by looking at the output from two .meas statements below in the SPICE Error Log file TEXT 880 1768 Left 2 !.meas total_output_refered_rms_noise INTEG V(onoise)\n.meas total_input_refered_rms_noise INTEG V(inoise)