Optimization methodologies for the automatic design of switched-capacitor filter circuits for IoT applications / Hugo Serra, Rui Santos-Tavares and Nuno Paulino.

Format:

Book

Author/Creator:

Serra, Hugo, author.

Santos-Tavares, Rui, author.

Paulino, Nuno, author.

Series:

Synthesis Lectures on Engineering, Science, and Technology

Language:

English

Subjects (All):

Internet of things.

Switched capacitor circuits.

Physical Description:

1 online resource (159 pages)

Place of Publication:

Cham, Switzerland : Springer, [2022]

Summary:

This book discusses the design of switched-capacitor filters in deep-submicron CMOS technologies. The authors describe several topologies for switched-capacitor filter circuits that do not require high-gain high-bandwidth amplifiers. Readers will also learn two analysis methodologies that can be implemented efficiently in software and integrated into optimization environments for the automation of design for switched-capacitor filters. Although the optimization examples discussed utilize low gain amplifiers, the demonstrated methodologies can also be used for conventional, high-gain high-bandwidth amplifiers.

Contents:

Intro

Preface

Acknowledgements

Contents

Abbreviations and Acronyms

1 Introduction

1.1 Book Organization

References

2 Background on Switched-Capacitor Filters

2.1 Switched-Capacitor Filters Building Blocks

2.1.1 Switches

2.1.2 Non-overlapping Clock Phases

2.1.3 Capacitors

2.1.4 Operational Amplifiers

2.2 Switched-Capacitor Resistor Emulation Networks

2.2.1 Parasitic-Sensitive Switched-Capacitor Integrator

2.2.2 Parasitic-Insensitive Switched-Capacitor Integrator

2.3 Noise in Switched-Capacitor Circuits

3 Design Techniques to Increase Performance of Switched-Capacitor Filters

3.1 Active SC Filters Using Capacitance Spread Reduction Techniques

3.1.1 Basic SC Integrator

3.1.2 SC Integrator Using Capacitive T-Cell Network

3.1.3 SC Integrator Using Partial Charge Transfer Network

3.1.4 SC Integrator Using Split Integrating Capacitor Network

3.1.5 SC Integrator Using Charge Recombination Network

3.2 Active SC Lowpass Filter Using Switched-Current-Assisting Technique

3.3 Virtual Ground Reference Buffer Technique in SC Circuits

3.4 Recycling SC Buffer Biquad

4 Computer Methods for the Analysis and Optimization of Switched-Capacitor Circuits

4.1 Nodal Analysis Method to Obtain the Transfer Function of SC Circuits

4.1.1 Example: Second-Order Lowpass SC Filter

4.2 Topology Exploration for the Optimal Capacitance Sizing in SC Biquads

4.3 Optimal Capacitance Sizing of SC Filters Using Linear Programming and Simulated Annealing

5 Analysis Methodologies for the Design of Switched-Capacitor Filters

5.1 Hierarchical Symbolic Methodology for the Analysis of SC Filters

5.1.1 Method Description

5.1.2 Example: Second-Order Lowpass SC Filter

5.2 Non-hierarchical Numeric Methodology for the Analysis of SC Filters.

5.2.1 Method Description

5.2.2 Example I: First-Order Passive SC Filter

5.2.3 Example II: Second-Order Bandpass SC Filter

5.2.4 Example III: Second-Order Lowpass SC Filter

5.3 Conclusions

6 Optimization Methodologies for the Design of Switched-Capacitor Filters

6.1 Optimization Procedure

6.1.1 Chromosome Evaluation

6.1.2 Chromosome Grading (Fitness)

6.1.3 Types of Optimization

6.1.4 Chromosome Reproduction

6.2 Hierarchical Optimization Methodology

6.2.1 Method Description

6.2.2 Example I: Second-Order Lowpass SC Filter

6.2.3 Example II: Second-Order Bilinear Bandpass SC Filter

6.2.4 Example III: Sixth-Order Bilinear Bandpass SC Filter

6.3 Non-hierarchical Optimization Methodology

6.3.1 Method Description

6.3.2 Example I: Second-Order Lowpass SC Filter

6.3.3 Example II: Second-Order Bandpass SC Filter

6.4 Conclusions

7 Switched-Capacitor Filter Prototypes and Measurement Results

7.1 Programmable Second-Order Bandpass Switched-Capacitor Filter

7.2 50 Hz Notch Switched-Capacitor Filter

7.2.1 Parasitic-Sensitive Switched-Capacitor Integrator Using a Charge Division Branch

7.2.2 Notch Switched-Capacitor Filter Using Charge Division Branches

7.3 Conclusions

8 Conclusions

[DELETE].

Notes:

Includes bibliographical references and index.

Description based on print version record.

ISBN:

3-031-04184-4