Anna University
EE 2254 Linear Integrated Circuits and Applications
Department of Electrical and Electronics Engineering
Fourth Semester
Part B Important Questions
Unit I
1. Classification of IC’s (8)
2. Explain epitaxial growth, Photolithography process (8)
3. Fabrication of resistor, capacitor, diode, transistor(by giving sample circuits) (16)
4. Isolation techniques
Unit II
1. Explain Block diagram of op-amp (8)
2. Explain ac characteristics of op-amp (8)
3. Explain application of op-amp as integrator and differentiator ( read all applications )(8)
Unit III
1. Explain three op-amp instrumentation amplifier with diagram (16)
2. Explain op-amp as comparator (8)
3. Explain D/A convertors (8)
4. Explain A/D convertors using any two methods /(16)
Unit IV
1 .Explain IC 565 with neat block diagram (16)
2. Explain application of IC 555 timer (16)
3. Explain functional block diagram of IC 555 timer.(8)
Unit V
1. Explain IC voltage regulator with neat sketch (16)
2. Explain IC 8038 with neat block diagram (16)
3. Explain switching regulators (16)