EE 0193-MOS: Analog and Mixed Signal MOS Integrated Circuit Design

Fall, 2003

Instructor

Dr. Miaochen Wu
Email: miaochen@eecs.tufts.edu

Teaching Assistant

Jiong Xie

The course consists of four parts. The first part introduces the practical aspects of analog and mixed signal MOS IC design method and design considerations, examples of applications. The second part covers the details of the components models, layout and matching, basic circuit building blocks of current sources, gain stages, two stage opamp, advanced current source, opamp circuit, opamp designs, feedback, noise model and analysis. The third part covers the details of switched capacitor (SC) circuits from Z-transform, sample hold circuit, SC filters, SC gain circuit, noise and nonlinear effects in SC circuits. The last part introduces the fundamentals of data converters.

Course Outlines

1. Analog digital integrated circuit and application

a. Signal processing application

b. Sensor and control application

c. Analog circuits by functions

d. Digital circuits by functions

e. Analog and mixed signal circuits

2. Design methodology

a. Top-down and bottom-up

b. Analog circuit design approach

c. Digital circuit design approach

d. Analog & mixed signal circuit design approach

3. Practical consideration of IC design

a. Design margin, yield, reliability

b. Wafer sort and production test

c. An example of design flow from concept to production

4. Components in integrated circuit

a. Capacitor, resistor and MOS transistor circuit models

b. Device matching

c. Analog mixed signal layout considerations

5. Basic current mirror and amplifiers

a. Simple CMOS current mirror

b. Common source amplifier

c. Source follower

d. Common gate amplifier

e. Source degenerated current mirror

f. High output impedance current mirror

g. Cascode gain stage

h. MOS differential pair and gain stage

i. Frequency response

6. Opamp design and compensation

a. Analysis of circuits involving opamp

b. Practical opamp characteristics and model

c. Two stage CMOS opamp

d. Feedback and opamp compensation

e. *Advanced current mirrors

f. *Folded-cascode opamp

7. Noise analysis and modeling

a. Source of noise

b. Time domain analysis

c. Frequency domain analysis

d. Noise models of IC components

e. *Noise analysis on opamp

8. Discrete time signal

a. Overview of signal spectra

b. Laplace transform of discrete-time signal

c. Z-transform

d. Downsampling and upsampling

e. Discrete-time filter

f. Sample-hold response

9. Switched capacitor circuit

a. Transistor as a switch

b. Sample and hold circuit

c. Charge injection

d. Basic building block

e. Basic operation and analysis

f. First-order filter

g. Biquad filter

h. Switched capacitor gain circuits

i. *Nonlinear effect in the switches

j. *Capacitor inaccuracies

k. *Noise in the SC circuits

10. Data converter

a. Ideal D/A converter

b. Ideal A/D converter

c. Quantization noise

d. Signal coding

e. Performance limitations

f. Types of data converters

g. Binary weighted resistor converter

h. Current mode converter

i. Flash A/D

j. Oversampling noise shaping A/D

(* Topics will be covered if time allows.)

Prerequisites

EE0011 or EE0012 or equivalent (Basic circuit analysis and theory, basic logic circuit, semiconductor basics)

(EE0013 or equivalent, S-plane, pole-zero interpolation, frequency response a plus)

Projects

Students will use Cadence design tools and IBM 5HP 0.5um process to do two projects with schematic capture and Spectre simulation.