Single-Stage Integrated- Circuit Amplifiers

IC Biasing The Basic MOSFET Current Source SATURATION

IC Biasing MOS Current-Steering Circuits Effect of V o on I o Difference Q 2 and Q 5 Current Source, Current Sink

IC Biasing BJT Circuits Current Transfer Ratio Case 1: m = 1 Case 2: Output Resistance

IC Biasing BJT Circuits – Current Steering Effect of V o on I o

High-Frequency Response The High-Frequency Gain Function S  0, F(s)  1

High-Frequency Response Determining the 3-dB Frequency f H A dominant pole exits if the lowest frequency pole is at least two octaves (a factor of 4) away from the nearest pole or zero.

High-Frequency Response Determining the 3-dB Frequency f H (cont.)

High-Frequency Response Determining the 3-dB Frequency f H (cont.)

High-Frequency Response Using Open-Circuit Time Constants for the Approximate Determination of f H Difficult to obtain poles and zeros R io : Seen by C i when reducing all other capacitance to zero and reducing the input signal to zero

High-Frequency Response Example 6.6 Small Signal Equivalent Circuit for CS Amplifier Frequency Response for CS Amplifier Triode Saturation

High-Frequency Response Example (cont.)

High-Frequency Response Example (cont.)

High-Frequency Response Example (cont.)

High-Frequency Response Example (cont.)

High-Frequency Response Miller’s Theorem

High-Frequency Response Miller’s Theorem --- Example

High-Frequency Response Miller’s Theorem --- Example (cont.)

High-Frequency Response Miller’s Theorem --- Example (cont.)

The CS and CE Amplifiers with Active Loads

Homework 6.34, 6.36, 6.40, 6.41, 6.45, 6.54, 6.57