/********** Copyright 1990 Regents of the University of California. All rights reserved. Author: 1985 Thomas L. Quarles Sydney University mods Copyright(c) 1989 Anthony E. Parker, David J. Skellern Laboratory for Communication Science Engineering Sydney University Department of Electrical Engineering, Australia **********/ #ifndef JFET #define JFET #include "ngspice/ifsim.h" #include "ngspice/gendefs.h" #include "ngspice/cktdefs.h" #include "ngspice/complex.h" #include "ngspice/noisedef.h" /* structures used to describe Junction Field Effect Transistors */ /* information used to describe a single instance */ typedef struct sJFETinstance { struct sJFETmodel *JFETmodPtr; /* backpointer to model */ struct sJFETinstance *JFETnextInstance; /* pointer to next instance of * current model*/ IFuid JFETname; /* pointer to character string naming this instance */ int JFETstate; /* pointer to start of state vector for jfet */ int JFETdrainNode; /* number of drain node of jfet */ int JFETgateNode; /* number of gate node of jfet */ int JFETsourceNode; /* number of source node of jfet */ int JFETdrainPrimeNode; /* number of internal drain node of jfet */ int JFETsourcePrimeNode; /* number of internal source node of jfet */ double *JFETdrainDrainPrimePtr; /* pointer to sparse matrix at * (drain,drain prime) */ double *JFETgateDrainPrimePtr; /* pointer to sparse matrix at * (gate,drain prime) */ double *JFETgateSourcePrimePtr; /* pointer to sparse matrix at * (gate,source prime) */ double *JFETsourceSourcePrimePtr; /* pointer to sparse matrix at * (source,source prime) */ double *JFETdrainPrimeDrainPtr; /* pointer to sparse matrix at * (drain prime,drain) */ double *JFETdrainPrimeGatePtr; /* pointer to sparse matrix at * (drain prime,gate) */ double *JFETdrainPrimeSourcePrimePtr; /* pointer to sparse matrix * (drain prime,source prime) */ double *JFETsourcePrimeGatePtr; /* pointer to sparse matrix at * (source prime,gate) */ double *JFETsourcePrimeSourcePtr; /* pointer to sparse matrix at * (source prime,source) */ double *JFETsourcePrimeDrainPrimePtr; /* pointer to sparse matrix * (source prime,drain prime) */ double *JFETdrainDrainPtr; /* pointer to sparse matrix at * (drain,drain) */ double *JFETgateGatePtr; /* pointer to sparse matrix at * (gate,gate) */ double *JFETsourceSourcePtr; /* pointer to sparse matrix at * (source,source) */ double *JFETdrainPrimeDrainPrimePtr; /* pointer to sparse matrix * (drain prime,drain prime) */ double *JFETsourcePrimeSourcePrimePtr; /* pointer to sparse matrix * (source prime,source prime) */ int JFETmode; /* distortion analysis Taylor coeffs. */ /* * naming convention: * x = vgs * y = vds * cdr = cdrain */ #define JFETNDCOEFFS 21 #ifndef NODISTO double JFETdCoeffs[JFETNDCOEFFS]; #else /* NODISTO */ double *JFETdCoeffs; #endif /* NODISTO */ #ifndef CONFIG #define cdr_x JFETdCoeffs[0] #define cdr_y JFETdCoeffs[1] #define cdr_x2 JFETdCoeffs[2] #define cdr_y2 JFETdCoeffs[3] #define cdr_xy JFETdCoeffs[4] #define cdr_x3 JFETdCoeffs[5] #define cdr_y3 JFETdCoeffs[6] #define cdr_x2y JFETdCoeffs[7] #define cdr_xy2 JFETdCoeffs[8] #define ggs1 JFETdCoeffs[9] #define ggd1 JFETdCoeffs[10] #define ggs2 JFETdCoeffs[11] #define ggd2 JFETdCoeffs[12] #define ggs3 JFETdCoeffs[13] #define ggd3 JFETdCoeffs[14] #define capgs1 JFETdCoeffs[15] #define capgd1 JFETdCoeffs[16] #define capgs2 JFETdCoeffs[17] #define capgd2 JFETdCoeffs[18] #define capgs3 JFETdCoeffs[19] #define capgd3 JFETdCoeffs[20] #endif /* indices to an array of JFET noise sources */ #define JFETRDNOIZ 0 #define JFETRSNOIZ 1 #define JFETIDNOIZ 2 #define JFETFLNOIZ 3 #define JFETTOTNOIZ 4 #define JFETNSRCS 5 #ifndef NONOISE double JFETnVar[NSTATVARS][JFETNSRCS]; #else /* NONOISE */ double **JFETnVar; #endif /* NONOISE */ unsigned JFEToff :1; /* 'off' flag for jfet */ unsigned JFETareaGiven : 1; /* flag to indicate area was specified */ unsigned JFETmGiven : 1; /* flag to indicate parallel multiplier given */ unsigned JFETicVDSGiven : 1; /* initial condition given flag for V D-S*/ unsigned JFETicVGSGiven : 1; /* initial condition given flag for V G-S*/ unsigned JFETtempGiven : 1; /* flag to indicate instance temp given */ unsigned JFETdtempGiven : 1; /* flag to indicate instance dtemp given */ double JFETarea; /* area factor for the jfet */ double JFETm; /* Parallel multiplier */ double JFETicVDS; /* initial condition voltage D-S*/ double JFETicVGS; /* initial condition voltage G-S*/ double JFETtemp; /* operating temperature */ double JFETdtemp; /* instance temperature difference */ double JFETtSatCur; /* temperature adjusted saturation current */ double JFETtGatePot; /* temperature adjusted gate potential */ double JFETtCGS; /* temperature corrected G-S capacitance */ double JFETtCGD; /* temperature corrected G-D capacitance */ double JFETcorDepCap; /* joining point of the fwd bias dep. cap eq.s */ double JFETvcrit; /* critical voltage for the instance */ double JFETf1; /* coefficient of capacitance polynomial exp */ double JFETtThreshold; /* temperature adjusted threshold voltage */ double JFETtBeta; /* temperature adjusted beta */ } JFETinstance ; #define JFETvgs JFETstate #define JFETvgd JFETstate+1 #define JFETcg JFETstate+2 #define JFETcd JFETstate+3 #define JFETcgd JFETstate+4 #define JFETgm JFETstate+5 #define JFETgds JFETstate+6 #define JFETggs JFETstate+7 #define JFETggd JFETstate+8 #define JFETqgs JFETstate+9 #define JFETcqgs JFETstate+10 #define JFETqgd JFETstate+11 #define JFETcqgd JFETstate+12 /* per model data */ typedef struct sJFETmodel { /* model structure for a jfet */ int JFETmodType; /* type index of this device type */ struct sJFETmodel *JFETnextModel; /* pointer to next possible model in * linked list */ JFETinstance * JFETinstances; /* pointer to list of instances * that have this model */ IFuid JFETmodName; /* pointer to character string naming this model */ /* --- end of generic struct GENmodel --- */ int JFETtype; double JFETthreshold; double JFETbeta; double JFETlModulation; double JFETdrainResist; double JFETsourceResist; double JFETcapGS; double JFETcapGD; double JFETgatePotential; double JFETgateSatCurrent; double JFETdepletionCapCoeff; double JFETfNcoef; double JFETfNexp; int JFETnlev; double JFETgdsnoi; double JFETdrainConduct; double JFETsourceConduct; double JFETf2; double JFETf3; /* Modification for Sydney University JFET model */ double JFETb; /* doping profile parameter */ double JFETbFac; /* internal derived doping profile parameter */ /* end Sydney University mod */ double JFETtnom; /* temperature at which parameters were measured */ double JFETtcv; double JFETbex; unsigned JFETthresholdGiven : 1; unsigned JFETbetaGiven : 1; unsigned JFETlModulationGiven : 1; unsigned JFETdrainResistGiven : 1; unsigned JFETsourceResistGiven : 1; unsigned JFETcapGSGiven : 1; unsigned JFETcapGDGiven : 1; unsigned JFETgatePotentialGiven : 1; unsigned JFETgateSatCurrentGiven : 1; unsigned JFETdepletionCapCoeffGiven : 1; /* Modification for Sydney University JFET model */ unsigned JFETbGiven : 1; /* end Sydney University mod */ unsigned JFETtnomGiven : 1; /* user specified Tnom for model */ unsigned JFETfNcoefGiven : 1; unsigned JFETfNexpGiven : 1; unsigned JFETnlevGiven : 1; unsigned JFETgdsnoiGiven : 1; unsigned JFETtcvGiven : 1; unsigned JFETbexGiven : 1; } JFETmodel; #ifndef NJF #define NJF 1 #define PJF -1 #endif /*NJF*/ /* device parameters */ #define JFET_AREA 1 #define JFET_IC_VDS 2 #define JFET_IC_VGS 3 #define JFET_IC 4 #define JFET_OFF 5 #define JFET_TEMP 6 #define JFET_DTEMP 7 #define JFET_M 8 /* model parameters */ #define JFET_MOD_VTO 101 #define JFET_MOD_BETA 102 #define JFET_MOD_LAMBDA 103 #define JFET_MOD_RD 104 #define JFET_MOD_RS 105 #define JFET_MOD_CGS 106 #define JFET_MOD_CGD 107 #define JFET_MOD_PB 108 #define JFET_MOD_IS 109 #define JFET_MOD_FC 110 #define JFET_MOD_NJF 111 #define JFET_MOD_PJF 112 #define JFET_MOD_TNOM 113 #define JFET_MOD_KF 114 #define JFET_MOD_AF 115 /* Modification for Sydney University JFET model */ #define JFET_MOD_B 116 /* end Sydney University mod */ #define JFET_MOD_TCV 117 #define JFET_MOD_BEX 118 #define JFET_MOD_NLEV 119 #define JFET_MOD_GDSNOI 120 /* device questions */ #define JFET_DRAINNODE 301 #define JFET_GATENODE 302 #define JFET_SOURCENODE 303 #define JFET_DRAINPRIMENODE 304 #define JFET_SOURCEPRIMENODE 305 #define JFET_VGS 306 #define JFET_VGD 307 #define JFET_CG 308 #define JFET_CD 309 #define JFET_CGD 310 #define JFET_GM 311 #define JFET_GDS 312 #define JFET_GGS 313 #define JFET_GGD 314 #define JFET_QGS 315 #define JFET_CQGS 316 #define JFET_QGD 317 #define JFET_CQGD 318 #define JFET_CS 319 #define JFET_POWER 320 /* model questions */ #define JFET_MOD_DRAINCONDUCT 301 #define JFET_MOD_SOURCECONDUCT 302 #define JFET_MOD_DEPLETIONCAP 303 #define JFET_MOD_VCRIT 304 #define JFET_MOD_TYPE 305 /* function definitions */ #include "jfetext.h" #endif /*JFET*/