Simple Differential CS Amplifier with Active Load Single Stage Op - - PowerPoint PPT Presentation

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Dec 09, 2022 215 likes •341 views

4 Simple Differential CS Amplifier with Active Load Single Stage Op Amp Input stage of Multi-stage Op Amp IIT-Bombay Lecture 18 M. Shojaei Baghini 5

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Simple Differential CS Amplifier with Active Load

Single Stage Op Amp
Input stage of Multi-stage Op Amp

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IIT-Bombay Lecture 18 M. Shojaei Baghini

3 1 1 1 1 3 4 3 2 1

2 1 1 2 2 1 2 1 ,

m m SS m m SS m m cm m m m m

g g R g g R g g A g g g g × + − = × + − ≈ = =

Differential Pair with Active Current Mirror Load and Internal CMFB – Small Signal CM Analysis

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Single Stage Cascode Op Amp – Basic Architecture (Telescopic Op Amp)

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Folded Cascode Op Amp with Improved Headroom Cascode Load

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Folded Cascode PMOS-NMOS Architecture

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Folded Cascode NMOS-PMOS Architecture

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Folded Cascode Op Amp

CMOS Analog Design by P. E. Allen, 2010

VSS

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Two-Stage Op Amp (Diff-Out)

From CMFB

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Gain Boosting in Single-Stage Op Amp

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IIT-Bombay Lecture 18 M. Shojaei Baghini

Gain Boosting in Single-Stage Op Amp (cont’d)

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IIT-Bombay Lecture 18 M. Shojaei Baghini