Version 4
SHEET 1 1076 680
WIRE 576 -160 544 -160
WIRE 672 -160 656 -160
WIRE 784 -160 752 -160
WIRE 256 -144 16 -144
WIRE 256 -96 256 -144
WIRE 336 -16 256 -16
WIRE 432 -16 336 -16
WIRE 496 -16 432 -16
WIRE 256 16 256 -16
WIRE 336 16 336 -16
WIRE 544 32 544 -160
WIRE 592 32 544 32
WIRE 784 48 784 -160
WIRE 784 48 656 48
WIRE 592 64 496 64
WIRE 256 112 256 96
WIRE 336 112 336 96
WIRE 336 112 256 112
WIRE 432 112 336 112
WIRE 496 112 496 64
WIRE 496 112 432 112
WIRE 624 112 624 80
WIRE 16 128 16 -144
WIRE 256 128 256 112
WIRE 544 160 544 32
WIRE 16 256 16 208
WIRE 256 256 256 208
WIRE 256 256 16 256
WIRE 544 256 544 240
WIRE 544 256 256 256
WIRE 16 320 16 256
FLAG 16 320 0
FLAG 16 -144 Vbat
FLAG 784 48 Vout
FLAG 624 16 Vbat
FLAG 432 112 2V
FLAG 432 -16 7V
FLAG 624 112 0
SYMBOL voltage 16 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL res 240 -112 R0
SYMATTR InstName R1
SYMATTR Value 1000
SYMBOL res 240 0 R0
SYMATTR InstName R2
SYMATTR Value 3300
SYMBOL res 320 0 R0
SYMATTR InstName R3
SYMATTR Value 10000
SYMBOL res 240 112 R0
SYMATTR InstName R4
SYMATTR Value 1000
SYMBOL res 672 -176 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 768 -176 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res 528 144 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL Robertugo\\OPAMP5 624 -16 R0
SYMATTR InstName U2
SYMATTR SpiceModel LM741/NS
TEXT 32 288 Left 0 !.op