JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-Requisite

Analog Electronics

Course Objectives

Analog circuits play a very crucial role in all electronic systems and due to

continued iniaturization, many of the analog blocks are not getting realized in CMOS technology.

• 1. To understand most important building blocks of all CMOS analog Ics.
• 2. To study the basic principle of operation, the circuit choices and the tradeoffs involved in the MOS transistor level design common to all analog CMOS ICs.
• 3. To understand specific design issues related to single and multistage voltage, current and differential amplifiers, their output and impedance issues, bandwidth, feedback and stability.
• 4. To understand the design of differential amplifiers, current amplifiers and OP AMPs.

Course Outcomes

After studying the course, each student is expected to be able to

• 1. Design basic building blocks of CMOS analog ICs.
• 2. Carry out the design of single and two stage operational amplifiers and voltage references.
• 3. Determine the device dimensions of each MOSFETs involved.
• 4. Design various amplifiers like differential, current and operational amplifiers.

UNIT - I

MOS Devices and Modeling: The MOS Transistor, Passive Components- Capacitor & Resistor, Integrated circuit Layout, CMOS Device Modeling - Simple MOS Large-Signal Model, Other Model Parameters, Small-Signal Model for the MOS Transistor, Computer Simulation Models, Sub-threshold MOS Model.

UNIT - II

Analog CMOS Sub-Circuits: MOS Switch, MOS Diode, MOS Active Resistor, Current Sinks and Sources, Current Mirrors-Current mirror with Beta Helper, Degeneration, Cascode current Mirror and Wilson Current Mirror, Current and Voltage References, Band gap Reference.

UNIT - III

CMOS Amplifiers: Inverters, Differential Amplifiers, Cascode Amplifiers, Current Amplifiers, Output Amplifiers, High Gain Amplifiers Architectures.

UNIT - IV

CMOS Operational Amplifiers: Design of CMOS Op Amps, Compensation of Op Amps, Design of Two-Stage Op Amps, Power- Supply Rejection Ratio of Two-Stage Op Amps, Cascode Op Amps, Measurement Techniques of OP Amp.

UNIT - V

Comparators: Characterization of Comparator, Two-Stage, Open-Loop Comparators, Other Open-Loop Comparators, Improving the Performance of Open-Loop Comparators, Discrete-Time Comparators.

TEXT BOOKS:

• 1. CMOS Analog Circuit Design - Philip E. Allen and Douglas R. Holberg, Oxford University Press, International Second Edition/Indian Edition, 2010.
• 2. Analysis and Design of Analog Integrated Circuits- Paul R. Gray, Paul J. Hurst, S. Lewis and R. G. Meyer, Wiley India, Fifth Edition, 2010.

REFERENCE BOOKS:

• 1. Analog Integrated Circuit Design- David A. Johns, Ken Martin, Wiley Student Edn, 2013.
• 2. Design of Analog CMOS Integrated Circuits- Behzad Razavi, TMH Edition.
• 3. CMOS: Circuit Design, Layout and Simulation- Baker, Li and Boyce, PHI. M.TECH.- I YEAR- I SEMESTER DIGITAL SYSTEMS & COMPUTER ELECTRONICS