Copyright 2010. W. Marshall Leach, Jr., Professor, Georgia Institute of Technology, School of
Electrical and Computer Engineering.
The BJT Dierential Amplier
Figure 1 shows the circuit diagram of a dierential amplier. The tail supply is m
BJT Amplier Circuits
As we have developed dierent models for DC signals (simple large-signal model) and AC signals (small-signal model), analysis of BJT circuits follows these steps: DC biasing analysis: Assume all capacitors are open circuit. Analyze the