*EL5177, EL5174 and EL5374 -- Model Rev. A 10/20/2003
*low power, wide bandwidth differential driver---550MHz for gain of 1
*The AC response for this model is based on Vs=+/-5V and RLD=1K
*SR and open loop gain are modeled. The enabled/disabled function is not modeled.
*For EL5174,the Ref pin and the In- should be tired together
*The pinout is based on EL5177 package
*The output short circuit current is not modeled
* connections:         FBP
*                       |    IN+
*                       |	|   REF	
*                       |	|    |   IN-
*                       |	|    |    |   FBN
*                       |	|    |    |    |   OUT-
*				|	|    |    |    |    |	VS+
*				|	|    |    |    |    |    |   VS-
*				|     |    |    |    |    |    |	|    OUT+
*				|	|    |    |    |    |    |	|	|
.subckt EL5177         	1	2    3    4    5    6    8    9     10
*
*Differential Input Stage
i1 8 9a 985uA
i2 8 10a 985uA
r1 12 9 580
r2 11 9 580
rd1 9a 10a 2.2k
q1 11 2a 9a qp
q2 12 4 10a qp
vosd 2a 2 1mV
*
*Feedback Stage
q3 12 1 13 qp
q4 11 5 14 qp
rd2 13 14 2.2k
i3 8 13 985uA
i4 8 14 985uA
*
*Vop path
*Gain Stage
g1 15 500 12 11 -0.012
rc 15 500 80k
vap 15 15a 0
cc 15a 500 8p
*
*output swing limit
*v1 8 19 1.3V
*v2 20 9 1.3V
*d1 15 19 dx
*d2 20 15 dx
*rz 15 18 150
*cz 18 16 0.5p
*
*output swing and SR limit
v1 8 19 1.3V
v2 20 9 1.3V
d1 15a 19 dx
d2 20 15a dx
rz 15a 18 150
cz 18 16 0.5p
*SR+
dp1 15b 19 dx
dp2 15a 15b dx
f1 15b 19 poly(1) vap -50e-4 1
*SR-
dn1 20 15c dx
dn2 15c 15a dx
f2 20 15c poly(1) vap -50e-4 -1
*
*G2 stage
g2 16 500 15a 500 1.88e-3
r3 16 500 100
*
*G3 stage
g3 17 500 16 500 5.32e-3
r4 17 500 1k
*
*Output satage
e1 10 500 17 500 1
*
*Von path
*Gain Stage
g1n 15n 500 11 12 -0.012
rcn 15n 500 80k
vna 15n 15na 0
ccn 15na 500 8p
*
*output swing limit
*v1n 8 19n 1.3V
*v2n 20n 9 1.3V
*d1n 15n 19n dx
*d2n 20n 15n dx
*rzn 15n 18n 150
*czn 18n 16n 0.5p
*
*output swing and SR limit
v1n 8 19n 1.3V
v2n 20n 9 1.3V
d1n 15na 19n dx
d2n 20 15na dx
rzn 15na 18n 150
czn 18n 16n 0.5p
*SR+
dp1n 15nb 19n dx
dp2n 15na 15nb dx
f1n 15nb 19n poly(1) vna -50e-4 1
*SR-
dn1n 20n 15nc dx
dn2n 15nc 15na dx
f2n 20n 15nc poly(1) vna -50e-4 -1
*
*G2 stage
g2n 16n 500 15na 500 1.88e-3
r3n 16n 500 100
*
*G3 stage
g3n 17n 500 16n 500 5.32e-3
r4n 17n 500 1k
*
*Output satage
e1n 6 500 17n 500 1
cln 6 10 2p
*
*Common Mode input stage
q5 55 56 52 qn
q6 54 50 51 qn
rcm1 8 55 600
rcm2 8 54 600
rcm3 52 53 300
rcm4 51 53 300
icm 53 9 400uA
rcf1 10 56 2k
rcf2 6 56 2k
voscm 50 3 50mV
gcm1 15a 500 54 55 4e-3
gcm2 15na 500 54 55 4e-3
*
*voltage reference
eref 500 0 poly(2) (8,0) (9,0) 0 0.5 0.5
rref 500 0 1M
esp 499 500 poly(1) (8,9) 0 0.5
esn 498 500 poly(1) (9,8) 0 0.5
*
* Supply current
idc 8 9 5.2m
*models
.model qp pnp  (Is=1e-16  Vaf=40 Bf=70 
+		 RC=169 Tf=39.8p itf=0.5e-3)
.model qn	NPN(Is=1e-16  Vaf=40 Bf=100 		
+		  Tf=7.24p itf=0.25e-3)
.model dx d(Is=1e-14 Cjo=.1pF Rs=.1 N=0.001)
.ends EL5177
*$