Summary of ECE 340
Fundamentals
Ohm’s law, KVL, KCL
Sources
Independent current and voltage (Thevenin, Norton equivalents)
Dependent current and voltage
Small-signal analysis
Gain
Resistance (ix, vx)
Frequency response
Dominant pole
MOSFETs
Lateral current flow
Device structure
N-type
Enhancement, depletion
P-type
Enhancement, depletion
Regions of operation
Triode
Saturation
DC bias
Blocking and bypass capacitors
AC small-signal
Equivalent circuits
Pi model
T model
Amplifier types, their gain, Rin and Rout
Common-source
Common-gate
Common-drain
Miller effect
BJTs
Vertical current flow
Device structure
PN junction, diode behavior
NPN
PNP
Regions of operation
Linear
Forward-active
DC bias
Blocking and bypass capacitors
AC small-signal
Equivalent circuits
Pi model
T model
Amplifier types, their gain, Rin and Rout
Common-emitter
Common-base
Common-collector
Miller effect
IC building blocks
Current sources/sinks
Enhancement of Rin, Rout
Current mirrors
Active loads
Differential amplifiers
Passively loaded
Actively loaded
Current-mirror load
Inputs
Single-ended vs differential
Outputs
Single-ended vs differential
Gain
Differential
SE vs diff
Common-mode
SE vs diff output
Feedback
Block diagram model
A, Beta, Af
Improvements due to feedback
Rin, Rout, bandwidth traded for open-loop gain
Actual circuit feedback amplifiers
Differential and common-mode half-circuits
Identification of FB network
Effect of FB loading on circuit
Breaking FB loop to analyze open-loop gain

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