*MAX4245 MACROMODEL
*------------------------------
*Revision 0, 07/2007
*------------------------------
*MAX4245 is a low-cost opamp operating from a single +2.5V to +5.5V supply
*and have rail to rail inputs and outputs. These devices are unity-gain stable
*with a 1MHz gain-bandwidth product.
*------------------------------
*Connections
*     1  = IN+
*     2  = VSS
*     3  = IN-
*     4  = OUT 
*     5  = /SHDN\
*     6  = VDD
*****************
.SUBCKT MAX4245 1 2 3 4 5 6
* NOTE: INCLUDE 
*            .OPTIONS ITL2=50 ITL4=50  
*                             TO ENHANCE CONVERGENCE. 
*SUPPLY VOLTAGE RANGE
****************
DSUPH 2 6 DSUP
VSUPLT 200 2 2.4V
GSUPL 2 201 POLY(2) 6 200 201 2 0 1M 100U
DSUPL1 2 201 DX
CSUPL 201 2 1P
DSUPL2 201 202 DX
VSUPLL 202 2 1V
****************
*INPUT STAGE
****************
GQ1 6 2 POLY(2) 6 2 77 2 0 0 0 0 19.643U
GQ2 6 2 77 2 262.944U
FOUT 6 2 VOUT 1
GSHDNQ 6 2 503 2 40.001N
****************
CIN 333 111 3.3P
RNIN 1 111 5.3K
RIN 3 333 5.3K
****************
DIN11 333 70 DIN
DIN12 70 71 DIN
DIN13 71 111 DIN
D21 111 80 DIN
D22 80 81 DIN
D23 81 333 DIN
****************
VOS 99 111 0.697M
****************
GEE 6 7 POLY(2) 201 2 77 2 0 0 0 0 4.02U
RE1 7 40 3.045K
RE2 7 50 3.045K
C1 20 30 0.935P
Q1 20 333 40 QX
Q2 30 99 50 QY
RC1 20 2 15.913K
RC2 30 2 15.913K
****************
*INTERMEDIATE STAGE
*GAIN STAGES
GPSA 21 31 6 2 1.987N
GCMA 21 31 7 2 6.284N
GA 31 21 20 30 62.84U
R2 21 31 100K
C2 31 33 10P
E1 33 21 32 21 1
GB 32 21 31 21 503
RO2 21 32 100
****************
*LEVEL SHIFTING STAGE
ELEV1 21 2 6 2 0 
****************
*OUTPUT CLAMPING
EOHO 66 2 6 2 1
VOHO 66 11 35M
D9 32 11 DX
D10 12 32 DX
VOLO 12 2 30M
****************
*CURRENT LIMITING STAGE
D5 32 9 DX
D6 44 9 DX
D7 10 32 DX
D8 10 44 DX
GLIMIT1 9 10 77 2 11M
GLIMIT2 9 10 POLY(2) 90 2 77 2 0 0 0 0 19M
FLIMIT 90 2 VOUT 1
ILIMITD 90 2 20N
DLH 90 91 DLIM
VLH 91 2 1
DLL 2 90 DLIM
GLIMSUP 6 2 POLY(2) 90 2 77 2 0 0 0 0 29.591M
VOUT 44 4 0
****************
*SHUTDOWN LOGIC
ISHDN 5 2 0.5N
ESHDN 500 2 5 501 100000
ESHDNFB 501 2 POLY(2) 500 2 6 2 0 0 0 0 1
VINV 502 2 1
MPINV1 503 500 502 502 PMOS W=4U L=2U 
MNINV1 503 500 2 2 NMOS W=4U L=2U
MPINV2 77 503 502 502 PMOS W=3U L=2U 
MNINV2 77 503 2 2 NMOS W=4U L=2U
****************
*MODELS USED
.MODEL QX PNP(BF=190.476)
.MODEL QY PNP(BF=210.526)
.MODEL DSUP D(IS=10N RS=5 N=1.77 CJO=0.1P BV=6 IBV=1)
.MODEL DIN D(IS=10N RS=5 N=1.77 CJO=0.1P BV=6 IBV=1)
.MODEL DX D(N=1M CJO=1P)
.MODEL DLIM D(N=1M IS=10N CJO=1P)
.MODEL NMOS NMOS(VTO=0.7 KP=6.50E-3)
.MODEL PMOS PMOS(VTO=-0.7 KP=6.50E-3)
****************
.ENDS