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+* PIN model
+* line 2
+* line 3
+* -- Summary -------------------------------
+* This is a simple spice model of a PIN diode.
+*
+* -- Description ---------------------------
+* It is a three node device; one input node (relative to ground) and two
+* output nodes (cathode and anode)
+*
+
+* -- Model ----------------------------------
+.subckt	SIMPLE_PIN input cathode anode resp=0.5
+
+* Input photocurrent is modled by a voltage
+* This generates a current using a linear voltage-controlled current source
+Gin    dk  da  input  0  {resp}
+Rin	 input  0   1G
+Cin  input  0   {resp}
+
+* The pn-junction that generates this photocurrent in the real device is modelled 
+* here by a simple diode
+Dpn da dk  pndiode
+
+* terminal resistances
+Ra	anode   da  0.001ohm
+Rk  cathode dk  0.001ohm
+
+* subsircuit models:
+.MODEL pndiode D IS=0.974p RS=0.1 N=1.986196 BV=7.1 IBV=0.1n 
++ CJO=99.2p VJ=0.455536 M=0.418717 TT=500n
+
+.ends