* SPICE netlist
V1 +V 0 5
XU2 N003 N001 +V 0 0 N002 SQUARE 0 LT1711 ;pnba In+)In-)V+)V-)GND)OUT+)OUT-)LATCH
C1 N003 N008 1.6p Rser=45 Lser=15.6m Cpar=6p
R1 N003 0 1k
R2 +V N003 1k
R3 N002 N001 1k
C2 N001 0 100n
R4 N002 N008 210
XU1 N007 N006 +V 0 SINE NC_01 LT1806 ;pnba In+)In-)V+)V-)OUT)SHDN
R5 SINE N006 15.8k
C3 N006 N005 100p
C4 SINE N005 100p
R6 N004 N003 1k
C5 0 N004 100p
R7 N007 0 1k
R8 +V N007 1k
C6 0 N007 100n
R9 N005 N004 6.49k
R10 0 N005 162
.tran 0 350u 340u startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1200 448
WIRE -488 -208 -504 -208
WIRE -408 -208 -424 -208
WIRE -344 -208 -408 -208
WIRE -120 -208 -264 -208
WIRE -56 -208 -88 -208
WIRE 56 -208 24 -208
WIRE 104 -208 56 -208
WIRE 232 -208 184 -208
WIRE 328 -208 232 -208
WIRE 408 -208 328 -208
WIRE 536 -208 472 -208
WIRE 56 -192 56 -208
WIRE 232 -176 232 -208
WIRE 328 -176 328 -208
WIRE -600 -144 -600 -160
WIRE 56 -112 56 -128
WIRE -344 -96 -344 -128
WIRE 232 -80 232 -96
WIRE 328 -80 328 -112
WIRE 424 -80 328 -80
WIRE 536 -80 536 -208
WIRE 536 -80 504 -80
WIRE -408 -64 -408 -208
WIRE -376 -64 -408 -64
WIRE -120 -64 -120 -208
WIRE -120 -64 -296 -64
WIRE -600 -48 -600 -64
WIRE -376 -32 -408 -32
WIRE -248 -32 -296 -32
WIRE 392 -16 392 -32
WIRE 232 0 232 -16
WIRE -488 16 -488 0
WIRE -360 16 -360 0
WIRE -344 16 -344 0
WIRE -344 16 -360 16
WIRE -328 16 -328 0
WIRE -328 16 -344 16
WIRE -344 32 -344 16
WIRE 328 32 328 -80
WIRE 360 32 328 32
WIRE 536 64 536 -80
WIRE 536 64 504 64
WIRE 600 64 536 64
WIRE 152 96 136 96
WIRE 232 96 232 80
WIRE 232 96 216 96
WIRE 360 96 232 96
WIRE -488 112 -488 96
WIRE -408 112 -408 -32
WIRE -408 112 -488 112
WIRE -392 112 -408 112
WIRE -312 112 -328 112
WIRE -120 112 -120 -64
WIRE -120 112 -232 112
WIRE 232 112 232 96
WIRE -488 128 -488 112
WIRE -408 192 -408 112
WIRE -88 192 -88 -208
WIRE -88 192 -408 192
WIRE 232 208 232 192
WIRE -488 224 -488 208
FLAG -600 -48 0
FLAG -600 -160 +V
FLAG -344 -128 +V
FLAG -344 32 0
FLAG -488 0 +V
FLAG -488 224 0
FLAG -504 -208 0
FLAG 392 144 0
FLAG 232 -16 +V
FLAG 232 208 0
FLAG 136 96 0
FLAG 392 -32 +V
FLAG 56 -112 0
FLAG 232 -80 0
FLAG 600 64 SINE
FLAG -248 -32 SQUARE
SYMBOL voltage -600 -160 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL Comparators\\LT1711 -344 -48 R0
SYMATTR InstName U2
SYMBOL misc\\xtal -392 96 M90
SYMATTR InstName C1
SYMATTR Value 1.6p
SYMATTR SpiceLine Rser=45 Lser=15.6m Cpar=6p
SYMBOL res -504 112 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -504 0 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res -248 -224 R90
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap -424 -224 R90
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL res -216 96 R90
SYMATTR InstName R4
SYMATTR Value 210
SYMBOL opamps\\LT1806 392 64 R0
SYMATTR InstName U1
SYMBOL res 520 -96 R90
SYMATTR InstName R5
SYMATTR Value 15.8k
SYMBOL cap 312 -112 M180
SYMATTR InstName C3
SYMATTR Value 100p
SYMBOL cap 472 -224 R90
SYMATTR InstName C4
SYMATTR Value 100p
SYMBOL res 40 -224 R90
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL cap 40 -128 M180
SYMATTR InstName C5
SYMATTR Value 100p
SYMBOL res 216 96 R0
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL res 216 -16 R0
SYMATTR InstName R8
SYMATTR Value 1k
SYMBOL cap 152 80 M90
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL res 200 -224 R90
SYMATTR InstName R9
SYMATTR Value 6.49k
SYMBOL res 216 -80 M180
SYMATTR InstName R10
SYMATTR Value 162