* SPICE netlist
XU1 0 NC_01 HEAT N001 N004 N005 N006 0 0 0 N008 N007 N005 N004 COOL N009 N002 N003 LTC1040 ;pnba STROBE)ON/_OFF)_A+B)AOUT)A1+)A1-)A2+)A2-)GND)V-)B2-)B2+)B1-)B1+)+OUT1)OSC)VP-P)V+
V3 N003 0 PWL(0 0 1u 5)
R2 N003 N009 10Meg
C1 N009 0 .1
VTemp Temp 0 PWL(0 26 200 28 400 26)
B1 alpha 0 V=1m*(A-1/(V(Temp)+273.15))/C
B2 beta 0 V=1m*sqrt((B/(3*C))**3+(1K*V(alpha))**2/4)
RThermistor N005 0 R=exp((1K*V(beta)-.5K*V(alpha))**.3333 -(1K*V(beta)+.5K*V(alpha))**.3333)
R3 COOL N007 20Meg
R4 N007 0 82K
R5 N008 0 78
RADJ2 N004 N008 {6.81K+5K*(1-TADJ)}
RADJ1 N002 N004 {4.99K+5K*TADJ}
R8 N001 N006 20Meg
R9 N006 0 82K
R10 N002 N005 4.32K
.tran 400
.param A=1.285e-3
.param B=2.362e-4
.param C=9.285e-8
.param TADJ=.662

* LTspice schematic (.asc)
Version 4
SHEET 1 2000 912
WIRE 744 -456 -168 -456
WIRE -40 -424 -280 -424
WIRE 696 -424 -40 -424
WIRE -280 -360 -280 -424
WIRE -168 -360 -168 -456
WIRE -40 -360 -40 -424
WIRE 920 -360 456 -360
WIRE 1000 -360 920 -360
WIRE 1000 -344 1000 -360
WIRE 456 -312 456 -360
WIRE 296 -248 216 -248
WIRE 696 -248 696 -424
WIRE 696 -248 648 -248
WIRE 1000 -248 1000 -264
WIRE -280 -216 -280 -280
WIRE 168 -216 -280 -216
WIRE 296 -216 168 -216
WIRE 744 -184 744 -456
WIRE 744 -184 648 -184
WIRE -168 -152 -168 -280
WIRE 296 -152 -168 -152
WIRE -168 -136 -168 -152
WIRE 296 -120 264 -120
WIRE 920 -88 920 -360
WIRE -40 -56 -40 -280
WIRE 216 -56 216 -248
WIRE 216 -56 -40 -56
WIRE 296 -56 216 -56
WIRE 760 -56 648 -56
WIRE -168 -40 -168 -56
WIRE -40 -40 -40 -56
WIRE -1000 -24 -1000 -56
WIRE 168 -24 168 -216
WIRE 296 -24 168 -24
WIRE 696 8 648 8
WIRE 760 8 696 8
WIRE 296 40 136 40
WIRE -40 72 -40 40
WIRE 296 72 -40 72
WIRE 920 72 920 -8
WIRE 920 72 648 72
WIRE -1000 88 -1000 56
WIRE 920 88 920 72
WIRE -40 120 -40 72
WIRE 136 120 136 40
WIRE 248 120 136 120
WIRE 136 152 136 120
WIRE 920 168 920 152
WIRE -872 200 -872 184
WIRE 360 216 360 168
WIRE 456 216 456 168
WIRE 552 216 552 168
WIRE -1000 264 -1000 200
WIRE -872 296 -872 280
WIRE -40 296 -40 200
WIRE 136 296 136 232
WIRE 248 312 248 120
WIRE 440 312 248 312
WIRE 696 312 696 8
WIRE 696 312 520 312
WIRE -280 344 -280 -216
WIRE -1000 408 -1000 344
WIRE -280 456 -280 424
FLAG 1000 -248 0
FLAG 456 216 0
FLAG 552 216 0
FLAG 920 168 0
FLAG 360 216 0
FLAG 760 -56 HEAT
FLAG 760 8 COOL
FLAG -1000 88 0
FLAG -1000 -56 Temp
FLAG -872 296 0
FLAG -872 184 alpha
FLAG -1000 408 0
FLAG -1000 200 beta
FLAG 136 296 0
FLAG -40 296 0
FLAG 264 -120 0
FLAG -168 -40 0
FLAG -280 456 0
SYMBOL LTC1040 472 -72 R0
SYMATTR InstName U1
SYMBOL VOLTAGE 1000 -360 R0
SYMATTR InstName V3
SYMATTR Value PWL(0 0 1u 5)
SYMBOL res 904 -104 R0
SYMATTR InstName R2
SYMATTR Value 10Meg
SYMBOL cap 904 88 R0
SYMATTR InstName C1
SYMATTR Value .1
SYMBOL voltage -1000 -40 R0
SYMATTR InstName VTemp
SYMATTR Value PWL(0 26 200 28 400 26)
SYMBOL bv -872 184 R0
SYMATTR InstName B1
SYMATTR Value V=1m*(A-1/(V(Temp)+273.15))/C
SYMBOL bv -1000 248 R0
SYMATTR InstName B2
SYMATTR Value V=1m*sqrt((B/(3*C))**3+(1K*V(alpha))**2/4)
SYMBOL res -296 328 R0
SYMATTR InstName RThermistor
SYMATTR Value R=exp((1K*V(beta)-.5K*V(alpha))**.3333 -(1K*V(beta)+.5K*V(alpha))**.3333)
SYMBOL res 536 296 R90
SYMATTR InstName R3
SYMATTR Value 20Meg
SYMBOL res 120 136 R0
SYMATTR InstName R4
SYMATTR Value 82K
SYMBOL res -56 104 R0
SYMATTR InstName R5
SYMATTR Value 78
SYMBOL res -56 -56 R0
SYMATTR InstName RADJ2
SYMATTR Value {6.81K+5K*(1-TADJ)}
SYMBOL res -56 -376 R0
SYMATTR InstName RADJ1
SYMATTR Value {4.99K+5K*TADJ}
SYMBOL res -184 -376 R0
SYMATTR InstName R8
SYMATTR Value 20Meg
SYMBOL res -184 -152 R0
SYMATTR InstName R9
SYMATTR Value 82K
SYMBOL res -296 -376 R0
SYMATTR InstName R10
SYMATTR Value 4.32K