Design and characterization of fully integrated low frequency, low voltage 0.25μm CMOS clock generator circuit

College

Gokongwei College of Engineering

Department/Unit

Electronics And Communications Engg

Document Type

Conference Proceeding

Source Title

IEEE Region 10 Annual International Conference, Proceedings/TENCON

Volume

2015-January

Publication Date

1-26-2015

Abstract

When designing an integrated circuit, simulation should normally pass through 5 corner libraries. The ideal case is to have the simulation results showing the same performance for all the corner libraries. However, owing to the difference in specifications among libraries, there can be significant variations of one result over another per library. In this paper, a fully integrated CMOS RC Clock circuit topology design is presented. The circuit was designed to have minimal sensitivity to process corner library variations. The design can operate at a low voltage of 1.5V using the 0.25um library. Simulation shows the clock output frequency remains stable at 50 kHz for all process corner libraries with a maximum deviation of only 6%. An added feature of the circuit is the variation of the clock's duty cycle. The entire design is fitted in an area of 1.11um2. © 2014 IEEE.

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Digitial Object Identifier (DOI)

10.1109/TENCON.2014.7022282

Disciplines

Electrical and Electronics

Keywords

Analog CMOS integrated circuits; Metal oxide semiconductors, Complementary; Low voltage integrated circuits

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