Version 4
SHEET 1 5945676 13421556
WIRE 1968 -96 1872 -96
WIRE 2208 -96 2032 -96
WIRE 1296 -64 1264 -64
WIRE 1392 -64 1360 -64
WIRE 1536 -64 1392 -64
WIRE 2208 -32 2208 -96
WIRE 2368 -32 2208 -32
WIRE 1536 -16 1536 -64
WIRE 1696 -16 1536 -16
WIRE 1872 -16 1872 -96
WIRE 1872 -16 1776 -16
WIRE 1968 -16 1872 -16
WIRE 2096 -16 2048 -16
WIRE 1392 32 1392 -64
WIRE 1424 32 1392 32
WIRE 2208 32 2208 -32
WIRE 2256 32 2208 32
WIRE 1536 48 1536 -16
WIRE 1536 48 1488 48
WIRE 2368 48 2368 -32
WIRE 2368 48 2320 48
WIRE 1168 64 1088 64
WIRE 1264 64 1264 -64
WIRE 1264 64 1248 64
WIRE 1280 64 1264 64
WIRE 1392 64 1360 64
WIRE 1424 64 1392 64
WIRE 2096 64 2096 -16
WIRE 2256 64 2096 64
WIRE 1088 112 1088 64
WIRE 2096 112 2096 64
WIRE 1296 192 1248 192
WIRE 1392 192 1392 64
WIRE 1392 192 1360 192
WIRE 1088 240 1088 192
WIRE 1248 240 1248 192
WIRE 2096 240 2096 176
WIRE 2096 240 1248 240
WIRE 1248 256 1248 240
FLAG 1088 240 0
FLAG 1248 256 0
SYMBOL voltage 1088 96 R0
SYMATTR InstName V1
SYMATTR Value ac 1.
SYMBOL res 1264 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 2.2k
SYMBOL res 1376 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 4.7k
SYMBOL cap 1360 176 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 2.2n
SYMBOL cap 1360 -80 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 45n
SYMBOL OPAMPS\\OPAMP 1456 -16 R0
SYMATTR InstName U1
SYMBOL res 1680 0 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 13k
SYMBOL res 1952 0 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R4
SYMATTR Value 18k
SYMBOL OPAMPS\\OPAMP 2288 -16 R0
SYMATTR InstName U2
SYMBOL cap 2080 112 R0
SYMATTR InstName C3
SYMATTR Value 2.2n
SYMBOL cap 1968 -80 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C4
SYMATTR Value 3.9n
TEXT 1200 352 Left 0 !.ac oct 25 1K 8K
TEXT 960 352 Left 0 !.include opamp.sub
TEXT 960 384 Left 0 ;This example schematic is supplied for informational/educational purposes only.