* Z:\tmp\asc_dec_bjh7r6w2\0d9d1ac4ebc7_core_sense_amp1_dec1.asc
* Generated by LTspice 26.0.1 for Windows.
VN 0 N001 {Va}
Q10 N011 sense_out N020 0 2N3904
VP V+ 0 {Va}
VP1 VCC 0 3.3
R21 N003 sense_out {4.7k*2}
Q9 N022 N017 N015 0 2N3906
R4 N009 N005 {Rfb2}
Q2 CB N007 N014 0 2N3904
Q6 N006 CB N012 0 2N3904
R15 N021 V- 1m
VINB INB 0 0 AC -0.5
R9 N002 N015 {4.7k*2}
R11 VCC N011 100
Q8 N023 N019 sense_out 0 2N3906
.model NPN NPN
.model PNP PNP
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.bjt
.backanno
.end

* LTspice schematic (.asc):
Version 4.1
SHEET 1 4868 1856
WIRE -224 -1328 -272 -1328
WIRE -176 -1328 -224 -1328
WIRE -64 -1328 -112 -1328
WIRE 144 -1328 64 -1328
WIRE 368 -1328 144 -1328
WIRE 608 -1328 560 -1328
WIRE 656 -1328 608 -1328
WIRE 304 -1264 240 -1264
WIRE 368 -1264 304 -1264
WIRE -272 -1200 -272 -1328
WIRE -112 -1200 -112 -1328
WIRE 64 -1200 64 -1328
WIRE 240 -1200 240 -1264
WIRE 560 -1200 560 -1328
WIRE 1808 -144 1808 -800
WIRE 1968 -144 1968 -800
WIRE 752 -112 752 -800
WIRE 512 -64 240 -64
WIRE 688 -64 512 -64
WIRE 2192 -32 2160 -32
WIRE 2288 -32 2192 -32
WIRE 2592 -32 2288 -32
WIRE 1312 0 1312 -384
WIRE 1312 0 1216 0
WIRE 1408 0 1312 0
WIRE 912 16 912 -800
WIRE 432 64 432 -112
WIRE 512 64 432 64
WIRE 848 64 512 64
WIRE 1216 64 1216 0
WIRE 1408 64 1408 0
WIRE 2288 96 2288 -32
WIRE 432 112 432 64
WIRE 1808 112 1808 -64
WIRE 1968 112 1968 -64
WIRE 592 160 496 160
WIRE 1216 192 1216 144
WIRE 1408 192 1408 144
WIRE 752 208 752 -16
WIRE 1120 208 752 208
WIRE 2192 224 2176 224
WIRE 2288 224 2288 176
WIRE 2288 224 2256 224
WIRE 912 240 912 112
WIRE 1568 240 1568 -64
WIRE 1568 240 1472 240
WIRE 2288 240 2288 224
WIRE 2528 240 2288 240
WIRE 432 256 432 208
WIRE 2288 288 2288 240
WIRE 1808 336 1808 112
WIRE 1968 336 1968 112
WIRE 2096 336 1968 336
WIRE 2176 336 2176 224
WIRE 2176 336 2096 336
WIRE 2224 336 2176 336
WIRE 1408 384 1408 288
WIRE 1744 384 1488 384
WIRE 1968 416 1968 336
WIRE 592 432 592 160
WIRE 752 432 752 208
WIRE 1216 464 1216 288
WIRE 1904 464 1488 464
WIRE 2288 656 2288 384
WIRE -64 736 -96 736
WIRE -32 736 -64 736
WIRE 352 736 48 736
WIRE 1808 736 1808 432
WIRE 1968 736 1968 512
SYMBOL voltage -112 -1104 R180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
SYMATTR InstName VN
SYMATTR Value {Va}
SYMBOL npn 2224 288 R0
SYMATTR InstName Q10
SYMATTR Value 2N3904
SYMBOL voltage -272 -1216 R0
SYMATTR InstName VP
SYMATTR Value {Va}
SYMBOL voltage 560 -1216 R0
SYMATTR InstName VP1
SYMATTR Value 3.3
SYMBOL res 1952 -160 R0
SYMATTR InstName R21
SYMATTR Value {4.7k*2}
SYMBOL pnp 1744 432 M180
SYMATTR InstName Q9
SYMATTR Value 2N3906
SYMBOL res 1392 160 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value {Rfb2}
SYMBOL npn 496 112 M0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL npn 848 16 R0
SYMATTR InstName Q6
SYMATTR Value 2N3904
SYMBOL res 64 720 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R15
SYMATTR Value 1m
SYMBOL voltage 240 -1216 R0
WINDOW 123 24 44 Left 2
WINDOW 39 0 0 Left 0
SYMATTR Value2 AC -0.5
SYMATTR InstName VINB
SYMATTR Value 0
SYMBOL res 1792 -160 R0
SYMATTR InstName R9
SYMATTR Value {4.7k*2}
SYMBOL res 2272 80 R0
SYMATTR InstName R11
SYMATTR Value 100
SYMBOL pnp 1904 512 M180
SYMATTR InstName Q8
SYMATTR Value 2N3906
FLAG -64 736 V-
FLAG -272 -1120 0
FLAG 64 -1120 0
FLAG -112 -1120 0
FLAG 240 -1120 0
FLAG -224 -1328 V+
FLAG 144 -1328 INA
FLAG 304 -1264 INB
FLAG 560 -1120 0
FLAG 608 -1328 VCC
FLAG 512 -64 CA
FLAG 512 64 CB
FLAG 2096 336 sense_out
FLAG 2192 -32 VCC