Function dnlim unrecognized.

I am trying to build a subsuircuit library using a netlist of ADCMP604 in matlab. The netlist is given below. On running the following commands :

subcircuit2ssc('ADCMP604.cir','+comp_1');
ssc_build comp_1;

I am getting the following error:

>> convert3

Error using spiceSubckt/getFunctionCalls

Function dnlim unrecognized.

Error in spiceSubckt/loadSubckt

Error in spiceSubckt

Error in subcircuit2ssc

Error in subcircuit2ssc (line 31)

subcircuit2ssc(netlist,target);

Error in convert3 (line 1)

subcircuit2ssc('ADCMP604.cir','+comp_1');

How do I resolve this?

* ADCMP604 SPICE Macro-model - BETA
* Description: RR, 2.5 to 5.5V, SS, LVDS Comparator
* Developed by: AR/ADGT
* Revision History:
* 1.0 (1/2021) - AR - BETA release
* Copyright (c) 1998-2021 Analog Devices, Inc. All rights reserved.
* Not Modeled:
* Temperature effects
* PSRR vs Frequency
* CMRR vs Frequency
*
* Parameters modeled include:
* VOS
* IVR
* Input Impedance
* Active Gain
* VOD
* AC Performance
* Supply Range and Current
*
* This is a BETA model only.
* This is not the final model.
*
* Node Assignments
* Q
* | VEE
* | | Vp
* | | | Vn
* | | | | VCCI/VCCO
* | | | | | QB
* | | | | | |
.subckt ADCMP604 1 2 3 4 5 6
B1 0 VDIN I=10u*dnlim(uplim(V(3),V(5)+.2,.1), V(2)-.5 ,.1)+1n*V(3)
B2 VDIN 0 I=10u*dnlim(uplim(V(4),V(5)+.2,.1), V(2)-.5, .1)+1n*V(4)
C1 VDIN 0 .5f Rpar=470k
D5 0 VDH0 DLAT
C4 4 2 1p Rpar=370k
C10 3 2 1p Rpar=370k
C7 5 1 200f
C8 1 2 200f
A6 N004 0 N002 0 0 0 VDH0 0 OTA g=500u linear Vlow=-1e308 Vhigh=1e308
D6 0 N004 DLAT
C3 N004 0 1p
G1 0 N004 0 VDH0 500µ
R4 N001 N003 14.5k
A8 N001 2 0 0 0 N002 0 0 SCHMITT vt=.4 vh=0 trise=1n tfall=1.5n
D1 VDIN 0 DVGAIN
D3 N003 2 DBLE
D2 5 4 DBIASR
D4 4 2 DBIASF
D7 5 3 DBIASR
D8 3 2 DBIASF
C15 5 6 200f
C16 6 2 200f
D10 5 2 DBURNSDI
R1 5 2 19.2k
D11 5 2 DBURNSDO
D12 2 6 DESD
D13 6 5 DESD
D14 1 5 DESD
D15 2 1 DESD
D17 4 5 DESD
D16 2 4 DESD
D18 4 3 DBIASC
D9 3 5 DESD
D19 2 3 DESD
R2 1 Vcm 10Meg
R5 Vcm 6 10Meg
M1 N010 N010 2 2 NPD
M2 1 N010 2 2 NPD M=100
B4 2 N010 I=(17.5u+1u*V(0))*(1-V(VDH))
D22 2 N010 DLIM1
M3 N008 N008 5 5 PPU
M4 1 N008 5 5 PPU M=100
B5 N008 5 I=(17.5u-1u*V(0))*(V(VDH)+1)
D23 N008 5 DLIM1
M5 N012 N012 2 2 NPD
M6 6 N012 2 2 NPD M=100
B6 2 N012 I=(17.5u+1u*V(0))*(V(VDH)+1)
D24 2 N012 DLIM1
M7 N011 N011 5 5 PPU
M8 6 N011 5 5 PPU M=100
B7 N011 5 I=(17.5u-1u*V(0))*(1-V(VDH))
D25 N011 5 DLIM1
C2 VDH0 0 40f
B8 0 VDH0 I=100u*tanh(V(VDIN)/50m)*uplim(dnlim(100m*V(5,2)+1,1,.1),1.5,.1)
A2 0 VDH0 0 0 0 0 VDH 0 OTA g=6.5m iout=5m Rout=1k Cout=700f vlow=-1 vhigh=1
C9 VDH0 0 q=120f*dnlim(x,.7,.1)**1.5-100f*dnlim(-x,.7,.1)**1.5
D26 VDIN 0 DVLIM
C12 1 6 3p
A3 2 Vcm 0 0 0 0 0 0 OTA g=100m iout=17.5u ref=-1.26 Rout=1Meg Cout=1f vlow=-1e308 vhigh=1e308
C13 5 2 5p Rpar=83k
C14 N001 2 1p Rpar=100
I1 2 N001 12.52m
S1 2 5 5 0 SVDDP
.model SVDDP SW(level=2 Ron=10 Roff=100Meg vt=.5 vh=-.2 ilimit=10.36m)
.model DVGAIN D(Ron=15k Roff=2Meg vfwd=15.3m epsilon=10m vrev=15.3m revepsilon=10m)
.model DVLIM D(Ron=1k Roff=100Meg vfwd=60m epsilon=10m vrev=60m revepsilon=10m)
.model DBLE D(Ron=31k Roff=1Meg vfwd=1.3 epsilon=100m)
.model DLAT D(Ron=1 Roff=76k Vfwd=1 Vrev=1 epsilon=.9 revepsilon=.9)
.model DBIASF D(Ron=300k Roff=1G vfwd=-400m epsilon=200m ilimit=2u )
.model DBIASR D(Ron=80k Roff=1G vfwd=1 epsilon=150m ilimit=2u )
.model DESD D(Ron=100 Roff=1G vfwd=650m epsilon=500m)
.model DBURNSDI D(Ron=100 Roff=1Meg vfwd=1.6 epsilon=500m ilimit=500u)
.model DBURNSDO D(Ron=100 Roff=1Meg vfwd=1.6 epsilon=500m ilimit=209u)
.model DP D(Ron=1000 Roff=1Meg vfwd=1.6 epsilon=500m ilimit=20m)
.model DBIASC D(Roff=100Meg Ron=750k vfwd=10u vrev=10u epsilon=10u revepsilon=10u ilimit=1u revilimit=1u)
.model NPD VDMOS(kp=72.45u ksubthres=.1 vto=1)
.model PPU VDMOS(kp=72.45u vto=-1 ksubthres=.1 pchan)
.model DLIM1 D(Ron=100 Roff=1G vfwd=1 epsilon=500m)
.model DSHT D(Ron=10k Roff=100Meg vfwd=2.2 epsilon=500m ilimit=.8u)
.ends ADCMP604

[Uruj]

Somebody.....

Answer 1

[Sabin]

In your netlist the function dnlim us called a few times but this function is nt defined anywhere. Therefore, subcircuit2ssc will have no way to convert this model.