25274: Integrated Filter Design
Course Name: Integrated Filter Design
Course Number: 25274
Prerequisite(s): 25773 (Filters and Network Synthesis)
Co-requisite(s): -
Units: 3
Level: Postgraduate
Last Revision: Fall 2014

Description
The students have learned CMOS analog design intensively in a graduate CMOS-I course. The students have also been introduced to filter design and synthesis before. The purpose of this graduate-level course is to utilize these two backgrounds and help students design integrated analog filters such as Switched-Capacitor Filters, Active-RC filters, and Gm-C filters. The students will get full exposure to practical on-chip implementation of these filters with different design examples. In light of the high-Q requirements of tunable RF band-pass filters, recently a new class of RF integrated filter structure has been introduced which is called “N-Path filter”. There will be an introduction and implementation tutorial of this class of filters which is extensively gaining attention for use in RF receivers and has a high potential to grow. There will be several sets of homework and a design project in this course. Also, there will be several handouts and a separate well-prepared exclusive note for N-path filters.
 
Syllabus:
  • Technology
    • Design of High-Performance Analog Circuits in Digital CMOS Chips
    • Overview of filter design (cascade, ladder, approximations, sensitivity)
  • Continuous-time Active-RC filters
    • Active RC Filters
    • Signal flow Graph
    • OpAmp RC Integrator
    • LC Ladder
    • Tunable Active-RC Filters
    • Nonidealities
  • Sampled – data Filters
    • Switched-Capacitors Filters
    • Basic structure
    • Nonidealities
    • Signal Flow Graph
    • Integrator Based
    • Direct implementation
    • Switched-Current Filters
  • N-Path Filters
    • Cognitive radio
    • Why we need High-Quality factor N-Path Filters
    • High-Q Tunable Bandpass N-Path Filters
    • History, and the Principles of N-Path Filters
    • An Intuitive Look at N-path Filters
    • Implementation of a Capacitor-Resistor differential N-Path Filter
    • The Characteristics of Impedance Transfer in N-Path Filters
    • Implementation of a differential High-Q N-Path Filter
    • On-chip application of N-path filter as a substitute for SAW filter
    • Implementation of complex N-path filters using Complex Impedance
  • Continuous Time Gm-C Filters
    • Introduction to Gm-C Filters
    • Filter Implementations Technique: SFG, Element replacement, Chain method
    • Transconductor Design
    • Differential Gm Cells
  • Fully Balanced Filters & Circuits
  • Automatic Tuning of Continuous-time Filters
    • Non-ideal Effects
    • Frequency Tuning
    • Q-tuning
    • Different tuning methods
  • Deep-submicron Analog Filter Design (Case Studies)
    • High Dynamic Range Low Voltage Filters
    • Recent Works on Gm-C Filters


 
Last Update: 2024-07-10