* AD1580 Spice Macro-model  
* Description: Reference
* Generic Desc: 1.225Vout, Bipolar REF, shunt, micro power
* Developed by:
* Revision History: 08/10/2012 - Updated to new header style
* 2.0 (08/1996)
* Copyright 1996, 2012 by Analog Devices, Inc.
*
* Refer to http://www.analog.com/Analog_Root/static/techSupport/designTools/spiceModels/license/spice_general.html for License Statement.  Use of this model
* indicates your acceptance with the terms and provisions in the License Statement.
*
* BEGIN Notes:
*
* Not Modeled:
*    
* Parameters modeled include:
*
* END Notes
*
* Node assignments
*              zener diode cathode
*                | zener diode anode
*                | | 
*                | | 
*                | | 
*                | | 
.SUBCKT AD1580   1 8  

r1 1 2 13.0k
r2 2 3 21k
r3 2 4 105k 
r4 3 5 2.73k
c1 4 6 10e-12
q1 7 3 8 qn1 
q2 4 5 8 qn2
q3 8 6 1 qp1
vic 5 7 0
f1 1 8 vic 0.8
g1 6 8 4 3 2e-4

.model qn1 npn(bf=100 vaf=100)
.model qn2 npn(bf=100 vaf=100)
.model qp1 pnp(bf=50k vaf=100)

.ends ad1580