* EL2150/EL2250/EL2450 Macromodel 
* connections:        +input
*                       |  -input
*                       |    | +Vsupply
*                       |    |    | -Vsupply
*                       |    |    |    |  output  
*                       |    |    |    |    |   
*                       |    |    |    |    |   
.subckt EL2150C         3    2    7    4    6   
*
* Input stage 
*
i1  7 10 250uA
i2  7 11 250uA
r1 10 11 4K
q1 12  2 10 qp
q2 13  3 11 qpa
r2 12  4 100
r3 13  4 100
*
* Second Stage & Compensation
*
gm 15 4 13 12 4.6m   
r4 15 4 15Meg
c1 15 4 0.36pF
*
* Poles
*
e1 17  4 15 4 1.0
r6 17 25 0.4K
c3 25  4 1pF
r7 25 18 0.5K  
c4 18  4 1pF  
*
* Output Stage 
* 
i3 20 4 1.0mA
q3  7 23 20 qn
q4  7 18 19 qn
q5  7 18 21 qn 
q6  4 20 22 qp
q7  7 23 18 qn
d1 19 20 da
r8 21 6 2
r9 22 6 2
r10 18 21  10k
r11  7 23 100k
d2 23 24 da
d4 24 4 da
d5 23 18 da
d6 4 15 da
*
* Power Supply Current
*
ips 7 4 3.2mA
*
* Models 
*
.model qn  npn(is=800e-18 bf=150 tf=0.02nS)
.model qpa pnp(is=810e-18 bf=50 tf=0.02nS)
.model qp  pnp(is=800e-18 bf=54 tf=0.02nS)
.model da d(tt=0nS)
.ends EL2150C
*$