B7002-advanced Digital Ic Design

Code No. B7002 JAWAHARLAL NEHRU TECHNOLOGY UNIVERSITY, HYDERABAD M .Tech. II Semester Supplementary Examinations, March – 2009 ADVANCED DIGITAL IC DESIGN (Electronics & Communications) Time: 3 hours Max. Marks.60 Answer any Five questions All questions carry equal marks --1.a) b)

Explain working of MOS inverters. Discuss the static characteristics and switching characteristics of MOSFET.

2.

Explain the following: (a) CMOS transmission gates. (b) Multilevel gate circuits design.

3.a) b)

Discuss clearly the CMOS D-latch. Draw the Scbmitt trigger circuit and explain how it works.

4.

What is meant by dynamic logic circuits? Discuss in detail the synchronous dynamic circuit techniques.

5.

Explain the following circuits: (a) SRAM (b) DRAM

6.a) b)

(c)

ROM

What are the advantages of low-power CMOS Logic Circuits? Discuss about Low-Power design through voltage scaling. Write brief notes on multi-threshold. CMOS.

7.a) b)

Discuss the static behavior of BICMOS. Discuss the applications of BICMOS.

8.

Write short notes on the following: a) b) c)

ESD Protection SOI-MOSFET SR Latch Circuit

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