Design of adaptive supply voltage for sub-threshold logic based on sub-1 V bandgap reference circuit

Y. K. Teh, F. Mohd-Yasin, F. Choong, Md. Mamun Ibne Reaz

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents the design methodology to produce an adaptive supply voltage, which is used to drive digital sub-threshold logic system. Design guidelines to maintain constant speed and power via adaptive VDD regulation are presented first. Then the paper discusses modification of sub-1 V bandgap reference (BGR) circuits using dynamic threshold MOSFET technique to provide the necessary adaptive reference voltage. Another well-known sub-1 V BGR circuit using current mode technique is also fabricated and compared. Both circuits are implemented in CMOS 0.18 μm technology. Empirical data from SPICE simulation and first order approximation techniques are used to derive analytical design models used inside BGR circuit. Measurement results of both the fabricated circuits show reference voltage output of 500 mV range; which are in good match of SPICE simulation.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalMicroelectronics Journal
Volume39
Issue number1
DOIs
Publication statusPublished - Jan 2008
Externally publishedYes

Fingerprint

threshold logic
Threshold logic
Energy gap
Networks (circuits)
Electric potential
electric potential
SPICE
CMOS
field effect transistors
simulation
methodology
thresholds
output
approximation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Design of adaptive supply voltage for sub-threshold logic based on sub-1 V bandgap reference circuit. / Teh, Y. K.; Mohd-Yasin, F.; Choong, F.; Ibne Reaz, Md. Mamun.

In: Microelectronics Journal, Vol. 39, No. 1, 01.2008, p. 24-29.

Research output: Contribution to journalArticle

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