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Bipolar Transistor Instance, UCSD HBT Model (Level 11)

Bipolar Transistor Instance, UCSD HBT Model (Level 11)

Level 11 HBT Instance Netlist Syntax

The syntax for a level 11 UCSD model heterojunction bipolar transistor (HBT) instance is:

Qxxxx nc nb ne [ns] [nt] modelname

[AREA=val] [M=val] [TNOM=val] [DTEMP=val] [TNODEOUT]

nc is the collector node, nb is the base node, ne is the emitter node, ns is the substrate node, and nt is the self-heating node of the transistor. The modelname is the name of a level 11 BJT model defined in a .MODEL statement elsewhere in the netlist. The TNODEOUT flag indicates that node nt is present but node ns is not present.

**Level 11 UCSD HBT Instance Parameters**
Instance Parameter	Description	Unit	Default
AREA	Emitter area factor for currents, resistances, and capacitances	None	1.0
M	Multiplier: simulates parallel transistors	None	1
TNODEOUT	Flag to indicate that node nt is present but node ns is not present	None	None
TNOM	Circuit temperature	°C	27
DTEMP	Difference between capacitor and circuit temperatures	°C	0

Level 11 BJT Instance Netlist Example

Q15 3 4 5 6 bjthbt11 DTEMP=5

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