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Unformatted text preview: ECSE334 Introduction to Microelectronics Winter 2009 McGill University - Department of Electrical and Computer Engineering
ECSE 334 - Introduction to Microelectronics
March 19, 2009, 5:35PM-7:25PM
MOSFET Parameters: For a MOSFET in the saturation region and having L = 0.5 μ m , ❑ –1 2 ● NMOS transistor: V t 0 = 0.6 V , λ = 0.25 V , μ n C ox = 200 μ A ⁄ V . ● PMOS transistor: V t 0 = 0.65 V , λ = 0.4 V , μ p C ox = 50 μ A ⁄ V . ❑ •
• –1 2 NOTES:
This is a closed-book midterm.
A summary of the MOSFET characteristics is attached.
This midterm includes 2 questions and consists of 5 pages, including this cover page.
All questions have equal weight.
Answer all questions in the exam books provided.
Underline your answers.
State any assumptions you find necessary to complete your answers.
Only the faculty-approved calculators are permitted.
Write your name on top of this sheet and on top of each sheet of the question sheets that you
want marked. Place the sheets that you want to be marked inside you exam booklet.
Return the sheets that you do not want to be marked to the invigilator for shredding.
Do not forget to write your name and student ID on the top of ALL pages following this sheet. Name: SOLUTION Student ID:
Question Mark 1
2 Midterm - SOLUTION /30 Total ECSE334 - Prof. Anas Hamoui /30 /60 page 1 of 7 ECSE334 Introduction to Microelectronics Winter 2009 VDD
+ Q5 Q6 VOV
- id vo id
v id IREF = 25μA Ro id
--------------------2 ( 1 ⁄ gm ) Q
2 Q4 Q3 Fig. 1
Question 1: [30 marks]
Consider the CMOS differential amplifier circuit shown in Fig. 1.
Assume all MOSFETs are biased in the saturation region and have a channel length L = 0.5 μm.
The MOSFET parameters are listed on the cover page. Ignore the body effect.
In your dc calculations, also assume λ = 0 .
a) Specify the aspect ratios ( W ⁄ L ) of all transistors, such that:
• All transistors operate at V OV = 0.25V ,
except input transistors Q1...
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This note was uploaded on 02/08/2012 for the course ECSE 334 taught by Professor Anashamoui during the Spring '10 term at McGill.
- Spring '10