Analog CMOS Integrated Circuits
Aim
The course is intended to deal with the analysis and design of analog CMOS integrated circuits specially operational trans-conductance amplifiers (OTA) and comparators at intermediate and baseband frequencies. OTAs are used in data converters, filters and line drivers etc. Comparators are the second most widely used analog block after amplifiers which are used in large abundance in data converters.
Course Learning Outcome
The design issues in this course mostly focus on the circuit-level with little emphasis on layout. At the end of the course, student must be able to,
- describe physics based mathematical equations for different regions of operations of diodes and MOSFET transistors to perform first-hand analysis of CMOS circuits
- Small-signal AC, large signal DC, noise and frequency domain analysis of single-stage amplifiers,
- Design and simulation of a classical two-stage CMOS OTA using EDA/CAD tools meeting the given performance specifications
Course Contents
- Basic physical behavior and mathematical modeling of diodes and MOSFET transistors, CMOS fabrication process and realization of transistors, resistors and capacitors in layout and associated design rules
- Small-signal AC and large signal DC analysis of fundamental building blocks of analog integrated circuits such as single-stage amplifiers, current sources/mirrors and differential amplifiers with active loads
- Frequency response limitations of single-stage and differential amplifiers with active current mirrors
- Noise analysis of single-stage and differential amplifiers
- Fundamental principles of basic OTA design such as feedback systems, stability, trade-offs between speed, settling time and power dissipation for single-stage OTAs such as telescopic and folded cascode
- Design of classical two-stage CMOS OTA with systematic compensation procedure
- Advanced OTA design topologies for low power-supply and short channel processes
- Comparator design with practical limitations and circuit techniques to improve performance
Text book
- Behzad Razavi, Design of Analog CMOS Integrated Circuits
- Analog Integrated Circuit Design Johns & Martin, John Wiley & Sons
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Courses
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