Analog Electronics
Analog Electronics
Course Outline
Module-1
Introduction to Analog circuits and systems, Transistor fundamentals. Circuit Abstraction and device models. Revisiting BJT - operation and characteristic equations, BJT operating point analysis, biasing and stabilization. Early effect and its impact on the small signal model. Low frequency small signal model.
Module-2
Amplifier models (equivalent circuits): voltage amplifier, current amplifier, trans-conductance amplifier and trans-resistance amplifier. Common emitter (CE), Amplifier with emitter degeneration, Common collector stage and Common base amplifier stages.
Module-3
Revisiting MOS devices: operation and characteristic. Threshold voltage. Channel length modulation. MOSFET capacitances. Biasing MOS circuits. Low frequency small signal models.
Module-4
Single stage MOS amplifiers: common-source, source degeneration, common-drain & common gate amplifiers.
Module -5
Multi transistor Amplifiers (operation and analysis): CE-CC; CS-CD; CC-CC; Darlington pair. Cascode amplifiers. Amplifier with active load.
Module-6
Current sources: current mirrors, initial thoughts for current mirrors. Analysis of basic BJT and MOS current sources. Widlar and Wilson current sources. Current mirror to make amplifiers.
Module-7
Differential amplifiers: BJT and MOS differential pairs, Small-signal analysis, Common Mode Gain, Differential Mode Gain, and CMRR (Common Mode Rejection Ratio).
Module-8
High-Frequency Response of Amplifiers: high frequency small signal models for BJTs and MOSFETs. High-frequency response (due to device parasitic capacitances), and bandwidth calculation. Application of Miller's theorem for frequency response analysis.
Module-9
Feedback Amplifiers and Oscillators: Feedback system: Basic feedback theory. Different feedback configurations and their characteristics. Effects of feedback on frequency response and amplifier performance. Application of feedback in practical circuits.
Positive Feedback & Oscillators: Barkhausen criterion for sustained oscillations. RC Oscillators: RC Phase Shift oscillator, Wien Bridge oscillator. LC Oscillators: Hartley, Colpitts, and Crystal oscillators (quartz crystal stability).
Module-10
Power Amplifier: Power efficiency of an amplifier, Different modes of operation of amplifiers and their power efficiency: Class A, Class B, Class AB and Class C.
Standard Textbooks and Reference
Sedra & Smith, Microelectronic Circuits: Theory and Applications, Oxford University Press.
Razavi, Behzad, Fundamentals of Microelectronics (or Design of Analog CMOS Integrated Circuits for advanced variations).
Millman, Halkias & Jit, Electronic Devices and Circuits / Integrated Electronics, McGraw-Hill.
Boylestad & Nashelsky, Electronic Devices and Circuit Theory, Pearson.
Gray, Hurst, Lewis, & Meyer, Analysis and Design of Analog Integrated Circuits, Wiley.