A current-mode controllable logarithmic function circuit using Mosfet in Subthreshold

Munir A. Al-Absi; Karama M. Al-Tamimi

A current-mode controllable logarithmic function circuit using Mosfet in Subthreshold

Munir A. Al-Absi^*, Karama M. Al-Tamimi

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

-A novel CMOS current-mode controllable lowvoltage and low-power logarithmic function circuit is introduced. It consists of an OTA and two PMOS transistors biased in weak inversion region. The proposed design provides high dynamic range, controllable amplitude, high accuracy and it is insensitive to temperature variation. The circuit operates from ± 0.5V power supply and consumes 110nW. The functionality of the proposed circuit was verified by simulation using HSPICE with 0.35μm CMOS process.

Original language	English
Title of host publication	International MultiConference of Engineers and Computer Scientists, IMECS 2012
Editors	Craig Douglas, Jon Burgstone, W. S. Grundfest, S. I. Ao
Publisher	Newswood Limited
Pages	844-846
Number of pages	3
ISBN (Electronic)	9789881925244
ISBN (Print)	9789881925190
State	Published - 2012

Publication series

Name	Lecture Notes in Engineering and Computer Science
Volume	2
ISSN (Print)	2078-0958

Bibliographical note

Publisher Copyright:
© 2012 Newswood Limited. All rights reserved.

Keywords

Current mode
Logarithmic function
Weak inversion

ASJC Scopus subject areas

Computer Science (miscellaneous)

Cite this

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title = "A current-mode controllable logarithmic function circuit using Mosfet in Subthreshold",

abstract = "-A novel CMOS current-mode controllable lowvoltage and low-power logarithmic function circuit is introduced. It consists of an OTA and two PMOS transistors biased in weak inversion region. The proposed design provides high dynamic range, controllable amplitude, high accuracy and it is insensitive to temperature variation. The circuit operates from ± 0.5V power supply and consumes 110nW. The functionality of the proposed circuit was verified by simulation using HSPICE with 0.35μm CMOS process.",

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booktitle = "International MultiConference of Engineers and Computer Scientists, IMECS 2012",

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A current-mode controllable logarithmic function circuit using Mosfet in Subthreshold. / Al-Absi, Munir A.; Al-Tamimi, Karama M.
International MultiConference of Engineers and Computer Scientists, IMECS 2012. ed. / Craig Douglas; Jon Burgstone; W. S. Grundfest; S. I. Ao. Newswood Limited, 2012. p. 844-846 (Lecture Notes in Engineering and Computer Science; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A current-mode controllable logarithmic function circuit using Mosfet in Subthreshold

AU - Al-Absi, Munir A.

AU - Al-Tamimi, Karama M.

PY - 2012

Y1 - 2012

N2 - -A novel CMOS current-mode controllable lowvoltage and low-power logarithmic function circuit is introduced. It consists of an OTA and two PMOS transistors biased in weak inversion region. The proposed design provides high dynamic range, controllable amplitude, high accuracy and it is insensitive to temperature variation. The circuit operates from ± 0.5V power supply and consumes 110nW. The functionality of the proposed circuit was verified by simulation using HSPICE with 0.35μm CMOS process.

AB - -A novel CMOS current-mode controllable lowvoltage and low-power logarithmic function circuit is introduced. It consists of an OTA and two PMOS transistors biased in weak inversion region. The proposed design provides high dynamic range, controllable amplitude, high accuracy and it is insensitive to temperature variation. The circuit operates from ± 0.5V power supply and consumes 110nW. The functionality of the proposed circuit was verified by simulation using HSPICE with 0.35μm CMOS process.

KW - Current mode

KW - Logarithmic function

KW - Weak inversion

UR - https://www.scopus.com/pages/publications/85048758633

M3 - Conference contribution

AN - SCOPUS:85048758633

SN - 9789881925190

T3 - Lecture Notes in Engineering and Computer Science

SP - 844

EP - 846

BT - International MultiConference of Engineers and Computer Scientists, IMECS 2012

A2 - Douglas, Craig

A2 - Burgstone, Jon

A2 - Grundfest, W. S.

A2 - Ao, S. I.

PB - Newswood Limited

ER -

A current-mode controllable logarithmic function circuit using Mosfet in Subthreshold

Abstract

Publication series

Bibliographical note

Keywords

ASJC Scopus subject areas

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Cite this