Capacitively-coupled chopper amplifiers /

Capacitively-coupled chopper amplifiers /

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Bibliographic Details
Author / Creator:Fan, Qinwen.
Imprint:Cham, Switzerland : Springer, 2016.
Description:1 online resource
Language:English
Series:Analog circuits and signal processing, 1872-082X
Analog circuits and signal processing series.
Subject:
Amplifiers (Electronics)
Amplifiers (Electronics)
Format: E-Resource Book
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/11269654
Hidden Bibliographic Details
Other authors / contributors:Makinwa, Kofi A. A.
Huijsing, Johan H., 1938-
ISBN:9783319473918
3319473913
9783319473901
9461919999
3319473905
Summary:This book describes the concept and design of the capacitively-coupled chopper technique, which can be used in precision analog amplifiers. Readers will learn to design power-efficient amplifiers employing this technique, which can be powered by regular low supply voltage such as 2V and possibly having a +\-100V input common-mode voltage input. The authors provide both basic design concepts and detailed design examples, which cover the area of both operational and instrumentation amplifiers for multiple applications, particularly in power management and biomedical circuit designs. Discusses basic working principles and details of implementation for proven designs; Includes a diverse set of applications, along with measurement results to demonstrate the effectiveness of the technique; Explains advantages and drawbacks of the technique, given particular circumstances.
Table of Contents:
  • 1 Introduction; 1.1 Problem; 1.2 Traditional Solutions; 1.3 A Promising Solution: Capacitively Coupled Chopper Amplifier; 1.4 Challenging Issues; 1.5 Organization; References; 2 The Chopping Technique; 2.1 Basic Working Principle; 2.2 Basic Chopper Amplifier Topologies; 2.2.1 Basic Chopper Opamp and Instrumentation Amplifier Topologies; 2.2.2 Chopper Stabilization; 2.3 Ripple-Reduction Techniques; 2.3.1 The Switched-capacitor (SC) Notch Filter; 2.3.2 AC-Coupled Ripple-Reduction Loop; 2.3.3 Auto-Correction Feedback Loop; 2.3.4 Digitally Assisted Trimming.
  • 2.3.5 Chopping + Auto-Zeroing2.3.5.1 The Auto-Zeroing Principle; 2.3.5.2 Chopping + Auto-Zeroing; 2.3.5.3 Summary; 2.4 Chopping Non-idealities; 2.5 Chopping Pros and Cons; 2.6 Conclusions; References; 3 Capacitively Coupled Chopper Amplifiers; 3.1 Capacitively Coupled Chopper Opamps (CCOPA); 3.1.1 Offset and 1/f Noise; 3.1.2 Noise and Power Efficiency; 3.1.3 Common-mode Rejection Ratio (CMRR) and Common-mode Voltage Range (CMVR); 3.1.4 Input Impedance; 3.1.5 Settling and Transient Issues; 3.2 Capacitively Coupled Chopper IAs (CCIA); 3.2.1 Offset and 1/f Noise; 3.2.2 Noise and Power Efficiency.
  • 3.2.3 CMRR and CMVR3.2.4 Gain Accuracy; 3.2.5 Input Impedance; 3.2.6 Output Spikes; 3.2.7 Settling and Transient Issues; 3.3 Conclusions; References; 4 Choppers for High Input Common-Mode Voltages; 4.1 Choice of Transistors; 4.2 High-voltage (HV) Chopper Topologies; 4.2.1 HV Chopper with HV Amplifier Level-Shifter; 4.2.2 Capacitively Coupled HV Choppers; 4.3 Transient Protection; 4.4 Conclusions; References; 5 Capacitively-Coupled Chopper Operational Amplifiers; 5.1 Introduction; 5.2 Conventional Techniques to Expand the CMVR.
  • 5.3 The Single-Path Capacitively-coupled Operational Amplifier (CCOPA)5.3.1 Design of the Single-Path CCOPA; 5.3.1.1 Frequency Compensation of the CCOPA; 5.3.1.2 Input Chopper; 5.3.1.3 Switched-Capacitor Ripple-Reduction Loop (SC RRL); 5.3.2 Implementation of the Basic CCOPA; 5.3.2.1 Global Parameters (fchop and Cin1,2); 5.3.2.2 Implementation of the Input Chopper; 5.3.2.3 Implementation of the Gain Stages (Gm1, Gm2, and Gm3); 5.3.2.4 Implementation of the Input CM Biasing Resistors; 5.3.2.5 Implementation of the SC RRL; 5.3.3 Experimental Results; 5.4 Multipath CCOPA.
  • 5.4.1 Design of the Multipath CCOPA (MCCOPA)5.4.1.1 Frequency Compensation; 5.4.1.2 Noise Considerations; 5.4.1.3 Offset Considerations; 5.4.2 Implementation of the Multipath CCOPA; 5.4.2.1 Frequency Compensation; 5.4.2.2 Implementation of the HFP; 5.4.2.3 Implementation of the LFP; 5.4.3 Experimental Results of the MCCOPA; 5.5 Conclusions; References; 6 Capacitively Coupled Chopper Instrumentation Amplifiers for High-Side Current Sensing; 6.1 Introduction; 6.2 Overview of the State of the Art; 6.2.1 HV Chopper-Stabilized Current Feedback Instrumentation Amplifier.

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