Analog Integrated Circuits

Pre-Requisite: EC206
Contact Hours and Credits: ( 3 -0- 0 ) 3


This subject introduces the theoretical & circuit aspects of Op-amp, which is the backbone for the basics of Linear integrated circuits.

Topics Covered:

Operational Amplifiers, DC and AC characteristics. Applications of Op-amp. Precision rectifiers. Log and antilog amplifiers. Four quadrant multipliers. Instrumentation amplifier.

Active filters. Filter classification. Standard approximations. Butterworth, Chebyshev and Bessel filters. Switched capacitor filter.

Multivibrators using opamps. 555 timer. Triggering circuits for bistable and monostable multivibrators. Programmable timer.

Data converters. Analog multiplexer. A/D and D/A converters. PLL-Applications of PLL. Frequency synthesizers. Coherent synthesizers using PLL. Direct digital synthesis. Phase noise in oscillators.

Voltage regulators. Regulators using opamps. IC regulators. Protection circuits. Fold back current limiting. Current boosting of IC regulators. Switching regulators.

Course Outcomes:

Students are able to

  • CO1: Infer the DC and AC characteristics of operational amplifiers and its effect on output and their compensation techniques.
  • CO2: Elucidate and design the linear and non-linear applications of an opamp and special application Ics.
  • CO3: Explain and compare the working of multivibrators using special application IC 555 and general purpose opamp.
  • CO4: Classify and comprehend the working principle of data converters.
  • CO5: Illustrate the function of application specific ICs such as Voltage regulators, PLL and its application in communication.

Text Books:

  • S. Franco, Design with Operational Amplifiers and Analog Integrated Circuits (3/e) TMH, 2003.
  • R. Gayakwad, Op-amps and Linear Integrated Circuits (4/e), PHID.
  • A.Bell, Solidstate Pulse Circuits (4/e), PHI,2009.

Reference Books:

  • R.F. Coughlin & F.F. Driscoll : Operational Amplifiers and Linear Integrated  circuits, PHI, 1996.
  • D.A. Bell : Solid State pulse circuits, (4/e),  PHI.
  • Milman Gravel: Micro-Electronics, McGraw Hill,1999.