Course

Unit 1:

MOSFET: Characteristics – Biasing – Large-Signal Equivalent – Small-Signal Operation and Models – High-Frequency Modeling – Short Channel Effects. MOS Diodes – Active Resistors- Capacitors. Current Source: Cascode Current Mirrors – Gain-Boosting – Current and Voltage References – Supply Independent Biasing – Sensitivity.

Unit 2

Single-Stage MOS Inverters: Active Load – Current Source Load – Push-Pull Load – Small Signal Gain – Frequency Response – Miller Effect-3-dB Frequency Determination. MOS Amplifier Configurations: Common Gate – Common Drain – Cascode – Differential – Active Loaded Differential Pair. Feedback Amplifiers: Negative Feedback – Loop Gain – Oscillators – Comparators.

Unit 3

Two-Stage CMOS Op-Amp Design: Gain and Frequency Response – Stability and Compensation in CMOS Op-Amps – Miller Compensated Op-Amp – Lead-Lag Compensation. Case Study of CA3130: BiMOS Operational Amplifier with MOSFET Input/CMOS Output.

• To provide an overview of MOS characteristics and its importance in analog design
• To introduce the design and analysis of active loaded amplifiers with and without feedback
• To provide a practical approach for the design of operational amplifiers in nanometer CMOS technology using modern engineering tools

At the end of the course, the student should be able to

• CO1: Ability to understand MOS characteristics and to design current sources
• CO2: Ability to apply techniques to design actively loaded amplifiers with and without feedback
• CO3: Ability to design and analyze operational amplifiers, comparators and oscillators
• CO4: Ability to analyze amplifier characteristics from top-level specifications and to model circuits using circuit simulators

Skills Acquired: Provides a platform to design and analyze CMOS-based active loaded amplifiers and to verify with the help of industry standard tools

CO-PO Mapping:

1. E. Allen and D. R. Holberg, CMOS Analog Circuit Design, Third Edition, Oxford Press, 2011.
2. Razavi, Design of Analog CMOS Integrated Circuits, Tata McGraw Hill, 2002, Reprint 2015.
3. R. Gray, P. J. Hurst, S. H. Levis and R. G. Meyer, Analysis and Design of Analog Integrated Circuits, Fifth Edition, Wiley Student Edition, 2009.
4. A S. Sedra, K. C. Smith and A. N. Chandorkar, Microelectronic Circuits -Theory and Applications, Seventh Edition, Oxford University Press, 2017.