This document contains an exam for a course on Analog VLSI Circuit Design. The exam contains 3 parts: Part A has 3 short answer questions worth 2 marks each about analog switches, current sources/sinks, and current mirror circuits. Part B has 1 question worth 8 marks about the characteristics of a controlled switch or distinction between DC and AC resistors. Part C has 1 question worth 16 marks about how bipolar and MOS transistors act as switches or the voltage-current characteristics of a BJT active resistor. The exam is for first year M.E students in the Electronics and Communication Engineering department and is out of a total of 30 marks to be completed within 60 minutes.

1. PSN COLLEGE OF ENGINEERING AND TECHNOLOGY (AUTONOMOUS)
Melathediyoor, Tirunelveli
(Approved by AICTE and Recognized by UGC Section 2 (f)
An ISO 9001:2008 Certified Institution
(Accredited by NBA and NAAC, Affiliated to Anna University, Chennai)
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
UNIT TEST –I
Subject Code /Name: 125005/ Analog VLSI Circuit Design
Year/Semester & Branch: I/II M.E EST
Max .Marks: 30 Time: 60mins
PART-A Answer ALL Questions (3x2=6 Marks)
1. Draw the practical implementation of the analog switch.
2. Define Current sources and current sink?
3. Draw the Current mirror circuit.
PART-B (1x8=8Marks)
4. (a) Explain the graphical characteristics of a controlled switch.
OR
4. (b) Distinction between a DC and AC resistor.
PART-C (1x16=16Marks)
5. (a) Explain how Bipolar and MOS transistor act as a switch.
OR
5. (b) With neat diagram explain the voltage –current characteristics of the BJT active resistor.