Version 4
SymbolType CELL
LINE Normal -32 -32 32 0
LINE Normal -32 32 32 0
LINE Normal -32 -32 -32 32
LINE Normal -28 -16 -20 -16
LINE Normal -27 16 -19 16
LINE Normal -23 20 -23 12
LINE Normal 0 -128 0 -16
LINE Normal 0 128 0 16
LINE Normal 4 -20 12 -20
LINE Normal 8 -24 8 -16
LINE Normal 4 20 12 20
LINE Normal -108 -62 -112 -56
LINE Normal -80 -56 -84 -50
LINE Normal -84 -50 -92 -62
LINE Normal -100 -50 -92 -62
LINE Normal -100 -50 -108 -62
LINE Normal -92 -102 -96 -96
LINE Normal -64 -96 -68 -90
LINE Normal -68 -90 -76 -102
LINE Normal -84 -90 -76 -102
LINE Normal -84 -90 -92 -102
LINE Normal -124 -22 -128 -16
LINE Normal -96 -16 -100 -10
LINE Normal -100 -10 -108 -22
LINE Normal -116 -10 -108 -22
LINE Normal -116 -10 -124 -22
LINE Normal -124 10 -128 16
LINE Normal -96 16 -100 22
LINE Normal -100 22 -108 10
LINE Normal -116 22 -108 10
LINE Normal -116 22 -124 10
LINE Normal -108 50 -112 56
LINE Normal -80 56 -84 62
LINE Normal -84 62 -92 50
LINE Normal -100 62 -92 50
LINE Normal -100 62 -108 50
LINE Normal -92 90 -96 96
LINE Normal -64 96 -68 102
LINE Normal -68 102 -76 90
LINE Normal -84 102 -76 90
LINE Normal -84 102 -92 90
LINE Normal -96 16 -32 16
LINE Normal -58 96 -64 96
LINE Normal -58 16 -58 96
LINE Normal -96 -16 -32 -16
LINE Normal -58 -96 -58 -16
LINE Normal -58 -96 -64 -96
LINE Normal 31 -62 27 -56
LINE Normal 59 -56 55 -50
LINE Normal 55 -50 47 -62
LINE Normal 39 -50 47 -62
LINE Normal 39 -50 31 -62
LINE Normal 27 -56 -80 -56
LINE Normal 80 -56 59 -56
LINE Normal 80 128 80 56
LINE Normal 32 0 80 0
LINE Normal 33 56 -80 56
LINE Normal 37 50 33 56
LINE Normal 65 56 61 62
LINE Normal 61 62 53 50
LINE Normal 45 62 53 50
LINE Normal 45 62 37 50
LINE Normal 80 56 65 56
LINE Normal -96 -96 -112 -96
LINE Normal -112 -96 -112 -128
LINE Normal -144 -56 -112 -56
LINE Normal -144 -128 -144 -56
LINE Normal -176 -128 -176 -16
LINE Normal -176 -16 -128 -16
LINE Normal -176 16 -128 16
LINE Normal -176 16 -176 128
LINE Normal -144 56 -144 128
LINE Normal -112 128 -112 96
LINE Normal -144 56 -112 56
LINE Normal -96 96 -112 96
LINE Normal 80 -128 80 0
RECTANGLE Normal 96 128 -192 -128
CIRCLE Normal -57 17 -59 15
CIRCLE Normal -56 18 -60 14
CIRCLE Normal -55 19 -61 13
CIRCLE Normal -57 -15 -59 -17
CIRCLE Normal -56 -14 -60 -18
CIRCLE Normal -55 -13 -61 -19
CIRCLE Normal -57 -55 -59 -57
CIRCLE Normal -56 -54 -60 -58
CIRCLE Normal -55 -53 -61 -59
CIRCLE Normal -57 57 -59 55
CIRCLE Normal -56 58 -60 54
CIRCLE Normal -55 59 -61 53
CIRCLE Normal 81 -55 79 -57
CIRCLE Normal 82 -54 78 -58
CIRCLE Normal 83 -53 77 -59
TEXT -81 -98 Bottom 2 50K
TEXT -97 -61 Bottom 2 150K
TEXT -112 -18 Bottom 2 450K
TEXT -112 18 Top 2 450K
TEXT -96 59 Top 2 150K
TEXT -78 99 Top 2 50K
TEXT 43 -59 Bottom 2 450K
TEXT 47 55 Bottom 2 450K
TEXT 40 93 Center 2 LT
WINDOW 0 -55 -127 Bottom 2
WINDOW 3 -54 128 Top 2
SYMATTR Value LT1991
SYMATTR Prefix X
SYMATTR SpiceModel LTC1.lib
SYMATTR Value2 LT1991
SYMATTR Description Precision, 100ľA Gain Selectable Amplifier
PIN -176 128 NONE 0
PINATTR PinName P1
PINATTR SpiceOrder 1
PIN -144 128 NONE 0
PINATTR PinName P3
PINATTR SpiceOrder 2
PIN -112 128 NONE 0
PINATTR PinName P9
PINATTR SpiceOrder 3
PIN 0 128 NONE 0
PINATTR PinName Vee
PINATTR SpiceOrder 4
PIN 80 128 NONE 0
PINATTR PinName Ref
PINATTR SpiceOrder 5
PIN 80 -128 NONE 0
PINATTR PinName OUT
PINATTR SpiceOrder 6
PIN 0 -128 NONE 0
PINATTR PinName VCC
PINATTR SpiceOrder 7
PIN -112 -128 NONE 0
PINATTR PinName M9
PINATTR SpiceOrder 8
PIN -144 -128 NONE 0
PINATTR PinName M3
PINATTR SpiceOrder 9
PIN -176 -128 NONE 0
PINATTR PinName M1
PINATTR SpiceOrder 10