* SPICE netlist
XQ2 N007 N013 0 BFR93A/PLP ;pnba C)B)E
R1 N001 N007 20
R2 N001 N013 20k
R3 +5V N001 1k
C1 N007 N014 1n
C2 N001 0 100n
XQ3 N008 N014 0 BFR93A/PLP ;pnba C)B)E
R4 N002 N008 20
R5 N002 N014 20k
R6 +5V N002 1k
C3 N008 N015 1n
C4 N002 0 100n
XQ4 N009 N015 0 BFR93A/PLP ;pnba C)B)E
R7 N003 N009 20
R8 N003 N015 20k
R9 +5V N003 1k
C5 N003 0 100n
C6 N009 php 1n
R10 php 0 50
C7 N013 N009 1n
I2 0 N013 PULSE(0 1u 0 1p 1p 1n 1)
V2 +5V 0 5
XQ5 N010 N016 0 BFR93A/INF ;pnba C)B)E
R11 N004 N010 20
R12 N004 N016 20k
R13 +5V N004 1k
C8 N010 N017 1n
C9 N004 0 100n
XQ6 N011 N017 0 BFR93A/INF ;pnba C)B)E
R14 N005 N011 20
R15 N005 N017 20k
R16 +5V N005 1k
C10 N011 N018 1n
C11 N005 0 100n
XQ7 N012 N018 0 BFR93A/INF ;pnba C)B)E
R17 N006 N012 20
R18 N006 N018 20k
R19 +5V N006 1k
C12 N006 0 100n
C13 N012 inf 1n
R20 inf 0 50
C14 N016 N012 1n
I3 0 N016 PULSE(0 1u 0 1p 1p 1n 1)
R21 N019 N025 20
R22 N019 N031 20k
R23 +5V N019 1k
C15 N025 N032 1n
C16 N019 0 100n
R24 N020 N026 20
R25 N020 N032 20k
R26 +5V N020 1k
C17 N026 N033 1n
C18 N020 0 100n
R27 N021 N027 20
R28 N021 N033 20k
R29 +5V N021 1k
C19 N021 0 100n
C20 N027 dzr 1n
R30 dzr 0 50
C21 N031 N027 1n
I4 0 N031 PULSE(0 1u 0 1p 1p 1n 1)
XQ11 N028 N034 0 BFR93A_DZRP ;pnba C)B)E
R31 N022 N028 20
R32 N022 N034 20k
R33 +5V N022 1k
C22 N028 N035 1n
C23 N022 0 100n
XQ12 N029 N035 0 BFR93A_DZRP ;pnba C)B)E
R34 N023 N029 20
R35 N023 N035 20k
R36 +5V N023 1k
C24 N029 N036 1n
C25 N023 0 100n
XQ13 N030 N036 0 BFR93A_DZRP ;pnba C)B)E
R37 N024 N030 20
R38 N024 N036 20k
R39 +5V N024 1k
C26 N024 0 100n
C27 N030 dzr_p 1n
R40 dzr_p 0 50
C28 N034 N030 1n
I5 0 N034 PULSE(0 1u 0 1p 1p 1n 1)
Q8 N026 N032 0 0 BFR93A_DZR
Q9 N027 N033 0 0 BFR93A_DZR
Q10 N025 N031 0 0 BFR93A_DZR
.include bfr93.lib
;dc I1 1u 1m 1u
.tran 0 30n 20n 10p
.OPTIONS plotwinsize=0

* LTspice schematic (.asc)
Version 4
SHEET 1 3648 1472
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FLAG -96 416 dzr
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FLAG 1504 576 0
FLAG 1232 416 0
FLAG 1504 128 +5V
FLAG 1824 576 0
FLAG 1824 416 dzr_p
SYMBOL npn -1552 -368 R0
SYMATTR InstName Q2
SYMATTR Value BFR93A/PLP
SYMATTR Prefix X
SYMBOL res -1504 -512 R0
SYMATTR InstName R1
SYMATTR Value 20
SYMBOL res -1648 -512 R0
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL res -1504 -656 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap -1296 -304 R270
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL cap -1776 -496 R0
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL npn -1008 -368 R0
SYMATTR InstName Q3
SYMATTR Value BFR93A/PLP
SYMATTR Prefix X
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SYMATTR InstName R4
SYMATTR Value 20
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SYMATTR InstName R5
SYMATTR Value 20k
SYMBOL res -960 -656 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL cap -752 -304 R270
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL cap -1232 -496 R0
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL npn -464 -368 R0
SYMATTR InstName Q4
SYMATTR Value BFR93A/PLP
SYMATTR Prefix X
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SYMATTR InstName R7
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SYMATTR InstName R8
SYMATTR Value 20k
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SYMATTR InstName R9
SYMATTR Value 1k
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SYMATTR InstName C6
SYMATTR Value 1n
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SYMATTR InstName R10
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SYMBOL cap -1648 -256 R0
SYMATTR InstName C7
SYMATTR Value 1n
SYMBOL current -1808 -112 M180
SYMATTR InstName I2
SYMATTR Value PULSE(0 1u 0 1p 1p 1n 1)
SYMBOL voltage -1760 -704 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL npn 352 -368 R0
SYMATTR InstName Q5
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SYMATTR Prefix X
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SYMATTR InstName R11
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SYMBOL cap 128 -496 R0
SYMATTR InstName C9
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SYMBOL npn 896 -368 R0
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SYMATTR Prefix X
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SYMATTR InstName R14
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SYMATTR Value 20k
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SYMBOL npn 1440 -368 R0
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SYMBOL res 1344 -512 R0
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SYMATTR Value 20k
SYMBOL res 1488 -656 R0
SYMATTR InstName R19
SYMATTR Value 1k
SYMBOL cap 1216 -496 R0
SYMATTR InstName C12
SYMATTR Value 100n
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SYMATTR InstName C13
SYMATTR Value 1n
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SYMATTR InstName R20
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SYMBOL cap 256 -256 R0
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SYMATTR Value 1n
SYMBOL current 96 -112 M180
SYMATTR InstName I3
SYMATTR Value PULSE(0 1u 0 1p 1p 1n 1)
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SYMATTR InstName R21
SYMATTR Value 20
SYMBOL res -1664 304 R0
SYMATTR InstName R22
SYMATTR Value 20k
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SYMATTR InstName R23
SYMATTR Value 1k
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SYMATTR InstName C15
SYMATTR Value 1n
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SYMATTR InstName C16
SYMATTR Value 100n
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SYMATTR InstName R24
SYMATTR Value 20
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SYMATTR InstName R25
SYMATTR Value 20k
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SYMATTR Value 1k
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SYMATTR InstName Q10
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