* Z:\tmp\asc_dec_bjh7r6w2\127d7eaa24b7_pasabanda_activo_dec1.asc
* Generated by LTspice 26.0.1 for Windows.
R1_c N008 N001 {R}
XU5 N002 N009 N008 opamp Aol=100K GBW=10Meg ;pnba invin)noninvin)out
Rb N011 Vi {Q1*R/a}
XU2 N012 N011 Vo1 opamp Aol=100K GBW=10Meg ;pnba invin)noninvin)out
XU1 N012 N014 N013 opamp Aol=100K GBW=10Meg ;pnba invin)noninvin)out
Rc2 0 N003 {Q2*R/(1-b)}
R1 N013 N011 {R}
R4 Vo1 N014 {R}
R3_c N002 Vo3 {4*R}
R5_b N006 0 {R}
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2032 680
WIRE 1632 -560 1312 -560
WIRE 1744 -544 1696 -544
WIRE 1632 -528 1584 -528
WIRE 48 -384 32 -384
WIRE 192 -384 128 -384
WIRE 288 -384 288 -560
WIRE 288 -384 192 -384
WIRE 320 -384 288 -384
WIRE 432 -384 400 -384
WIRE 720 -384 720 -544
WIRE 720 -384 688 -384
WIRE 752 -384 720 -384
WIRE 864 -384 832 -384
WIRE 928 -384 864 -384
WIRE 1056 -384 1056 -544
WIRE 1072 -384 1056 -384
WIRE 1312 -384 1312 -560
WIRE 1312 -384 1216 -384
WIRE 1344 -384 1312 -384
WIRE 1456 -384 1424 -384
WIRE 1488 -384 1456 -384
WIRE 1584 -384 1584 -528
WIRE 1584 -384 1552 -384
WIRE 1632 -384 1584 -384
WIRE 1744 -384 1744 -544
WIRE 1744 -384 1712 -384
WIRE 1776 -384 1744 -384
WIRE 192 -320 192 -384
WIRE 288 -320 288 -384
WIRE 928 -320 928 -384
WIRE 1312 -320 1312 -384
WIRE 1584 -272 1584 -384
WIRE 1584 -272 1552 -272
WIRE 1456 -256 1456 -384
WIRE 1488 -256 1456 -256
WIRE 864 -240 864 -384
WIRE 864 -240 528 -240
WIRE 1888 -240 1552 -240
WIRE 192 -176 192 -240
WIRE 288 -176 288 -256
WIRE 288 -176 192 -176
WIRE 928 -176 928 -240
WIRE 928 -176 288 -176
WIRE 1312 -176 1312 -256
WIRE 32 -128 32 -384
WIRE 720 -128 32 -128
WIRE 608 -80 288 -80
WIRE 720 -64 720 -128
WIRE 720 -64 672 -64
WIRE 608 -48 560 -48
WIRE 48 96 -16 96
WIRE 192 96 128 96
WIRE 288 96 288 -80
WIRE 288 96 192 96
WIRE 320 96 288 96
WIRE 432 96 400 96
WIRE 464 96 432 96
WIRE 560 96 560 -48
WIRE 560 96 528 96
WIRE 608 96 560 96
WIRE 720 96 720 -64
WIRE 720 96 688 96
WIRE 752 96 720 96
WIRE 864 96 832 96
WIRE 928 96 864 96
WIRE -16 160 -16 96
WIRE 192 160 192 96
WIRE 288 160 288 96
WIRE 928 160 928 96
WIRE 560 208 560 96
WIRE 560 208 528 208
WIRE 432 224 432 96
WIRE 464 224 432 224
WIRE 864 240 864 96
WIRE 864 240 528 240
WIRE -16 304 -16 240
WIRE 192 304 192 240
WIRE 288 304 288 224
WIRE 928 304 928 240
WIRE 928 304 288 304
SYMBOL res 1440 -400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1_c
SYMATTR Value {R}
SYMBOL OpAmps\\opamp 1520 -320 M0
SYMATTR InstName U5
SYMBOL res 144 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rb
SYMATTR Value {Q1*R/a}
SYMBOL OpAmps\\opamp 640 0 M180
SYMATTR InstName U2
SYMBOL OpAmps\\opamp 496 160 M0
SYMATTR InstName U1
SYMBOL res 208 -224 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName Rc2
SYMATTR Value {Q2*R/(1-b)}
SYMBOL res 416 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value {R}
SYMBOL res 736 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value {R}
SYMBOL res 1616 -368 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3_c
SYMATTR Value {4*R}
SYMBOL res 912 -336 R0
SYMATTR InstName R5_b
SYMATTR Value {R}
FLAG 192 -176 0
FLAG 720 -64 Vo1
FLAG 1744 -544 Vo3
FLAG -16 96 Vi