HIGH FREQUENCY BEHAVIOR OF BASIC AMPLIFIERS

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Presentation transcript:

HIGH FREQUENCY BEHAVIOR OF BASIC AMPLIFIERS

High frequency small signal equivalent circuit of a MOS transistor

Modified Miller conversion

High frequency behavior of common source amplifier

R-C Loaded amplifier

σ

The input admittance of a R-C loaded amplifier

High frequency behavior of source follower

↑

Compare !

High frequency behavior of a common-gate amplifier

Cascode Amplifier

The CMOS Inverter as a Transimpedance Amplifier

a) two separate negative-real poles for b) two equal negative-real poles for c) one complex-conjugate pair for

Frequency and pulse responses for the conjugate-pole case

High frequency behavior of differential amplifiers

The input admittances of a long-tailed pair

Gain Enhancement Techniques for HF Amplifiers

Additive (distributed) amplifiers

A Band Widening Technique: Inductive Peaking

Maximum signal transfer from source to load

Cascading strategies for wide-band amplifiers

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