• SC Filters

Switched-capacitor filters, kT/C noise, chopping, and correlated double sampling.

Lecture along the lines of Schmid, H. & Huber, A. Analog Integr Circ Sig Process (2018) 96: 495.

Lectures and Exercices 2019

• Exercise A (for Lecture 1)

  • Reference solution

  • Reference solution: Python calculations

  • Reference solution: Python notebook

• Exercise B (for Lecture 2)

  • Paper 1: Enz 1996, Circuit techniques for reducing the effects of op-amp imperfections: autozeroing, correlated double sampling, and chopper stabilization

  • Paper 2: Ki 1990, Offset-compensated switched-capacitor integrators

  • Reference solution

  • Reference solution: Python calculations

  • Reference solution: Python notebook

• Exercise 08 (for Lecture 3)

  • Reference Solution

Additional material

The derivation of the kT/C Formula is on p.~254 of the following paper:

• A tutorial to switched-capacitor noise analysis by hand (Schmid/Eichelberger/Huber)

Suppressing flicker noise, which is not part of 2019's curriculum, is described here:

• CAS Magazine column "Aaargh! I Just Loooove Flicker Noise"

• AICSP article by Schmid et.al., "A tutorial to switched-capacitor noise analysis by hand"

Lecture Content 2018

Lectures

• Summary of Lecture 1

  • Blackboard photos and PDF of Python 3.7 notebook

  • Python 3.7 notebook

• Summary of Lecture 2

  • Blackboard photos

Exercises

• Exercise A (for Lecture 1)

  • Reference solution

  • Reference solution: Python calculations

  • Reference solution: Python notebook

• Exercise B (for Lecture 2)

  • Paper 1: Enz 1996, Circuit techniques for reducing the effects of op-amp imperfections: autozeroing, correlated double sampling, and chopper stabilization

  • Paper 2: Ki 1990, Offset-compensated switched-capacitor integrators

  • Reference solution

  • Reference solution: Python calculations

  • Reference solution: Python notebook

Lecture Content 2017

This did not work so well, and I will do it differently in 2018.

Blackboard Photos

• 171122_notes.pdf

• 171129_notes.pdf

• Mathematica evaluation of the equations in 171129_notes.pdf

Exercises

SC Filters 1

• Exercise 08 - New Topic

• Exercise 08 New: Reference Solution, Signal-Flow Graph

• Exercise 08 New: Reference Solution, Mason applied to graph

SC Filters 2

• Exercise 08

• Exercise 08 Reference Solution