.BondLib.Examples.ModelicaSpice.OrNorGate

Information

This package contains a model of a commercial OR/NOR gate built from thirteen vertically diffused NPN bipolar transistors [1: p.244].

The circuit uses the device parameters of Process 35 proposed in [1: p.208]. Notice the use of the ramping sources both on the two input signals, vA and vB, and on the two supplies of -2 Volts and -5.2 Volts, respectively. Without ramping sources, this circuit could not be simulated at all using realistic device parameters. The ramping sources offer a means to slowly approach a DC OP-point before the transient analysis begins.

Experimentation:

Simulate the model during 30 microseconds. Plot the two input voltages, vA and vB, together with the two output voltages, vOR and vNOR, on a single plot.

Simulation Results:

We expect the following results:

References:

  1. Cellier, F.E. (1991), Continuous System Modeling, Springer-Verlag, New York, ISBN: 0-387-97502-0, 755 p.

Contents

NameDescription
 OrNorOR/NOR gate built in ECL logic
 TestOrNorTest circuit to evaluate performance of OR/NOR gate
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