CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration

Hacer A. Yildiz; Lida Kouhalvandi; Serdar Ozoguz

doi:10.1109/TSP.2019.8768858

CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration

Hacer A. Yildiz, Lida Kouhalvandi, Serdar Ozoguz

Elektronik ve Hab.Müh.Bölümü

Istanbul Technical University

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde Bölüm › Konferans katkısı › bilirkişi

5 Atıf (Scopus)

Özet

In this paper, CMOS realizations of exponential function generators are considered and it is shown that the inherent square-law characteristic of the CMOS can be effectively used to produce the required exponential characteristic. While many of the existing exponential function generators rely on complicated coefficient settings procedure, in order approach, the circuit inherently realizes the required approximating function. However, the additional errors due to square-law model limitation can be alleviated by using so-called cascade realization technique. The functionality of the design is confirmed with 65 nm CMOS process technology with ± 0.5 V power supply in saturation region. In this design the power dissipation is 150 μ W. Simulation results proves the correctness of the theoretical analysis and proves the viability of the proposed structure.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019
Editörler	Norbert Herencsar
Yayınlayan	Institute of Electrical and Electronics Engineers Inc.
Sayfalar	535-538
Sayfa sayısı	4
ISBN (Elektronik)	9781728118642
DOI'lar	https://doi.org/10.1109/TSP.2019.8768858
Yayın durumu	Yayınlandı - Tem 2019
Etkinlik	42nd International Conference on Telecommunications and Signal Processing, TSP 2019 - Budapest, Hungary Süre: 1 Tem 2019 → 3 Tem 2019

Yayın serisi

Adı	2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019

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???event.eventtypes.event.conference???	42nd International Conference on Telecommunications and Signal Processing, TSP 2019
Ülke/Bölge	Hungary
Şehir	Budapest
Periyot	1/07/19 → 3/07/19

Bibliyografik not

Publisher Copyright:
© 2019 IEEE.

Finansman

This work is supported by Istanbul Technical University the Scientific Research Projects Unit Under Grant No. MDK-2019-41968. There are variety purposes and applications of EXPFG generators such as variable gain amplifier (VGA) [7], [8] and automatic gain control [9], [10]. As a result of this interest, there is a notable amount of literature on CMOS EXPFGs. However, these approaches can be classified into two main groups: circuits with weak inversion and with strong inversion devices. In the former, the exponential-like characteristic of the MOSFET inherently favors the design of the EXPFGs but the circuits suffer from the well-known limitations of weak inversion operation, while in the latter, additional circuits should be used to design EXPFGs as a result of the incompatible square-law characteristic of the MOSFET [11]. Among these papers, This work is supported by Istanbul Technical University the Scientific Research Projects Unit Under Grant No. MDK-2019-41968.

Finansörler	Finansör numarası
Istanbul Technical University the Scientific Research Projects Unit
Firat University Scientific Research Projects Management Unit	MDK-2019-41968

Belgeye Erişim

10.1109/TSP.2019.8768858

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

Yildiz, H. A., Kouhalvandi, L., & Ozoguz, S. (2019). CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration. In N. Herencsar (Ed.), 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019 (pp. 535-538). Makale 8768858 (2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TSP.2019.8768858

Yildiz, Hacer A. ; Kouhalvandi, Lida ; Ozoguz, Serdar. / CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration. 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019. editör / Norbert Herencsar. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 535-538 (2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019).

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title = "CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration",

abstract = "In this paper, CMOS realizations of exponential function generators are considered and it is shown that the inherent square-law characteristic of the CMOS can be effectively used to produce the required exponential characteristic. While many of the existing exponential function generators rely on complicated coefficient settings procedure, in order approach, the circuit inherently realizes the required approximating function. However, the additional errors due to square-law model limitation can be alleviated by using so-called cascade realization technique. The functionality of the design is confirmed with 65 nm CMOS process technology with ± 0.5 V power supply in saturation region. In this design the power dissipation is 150 μ W. Simulation results proves the correctness of the theoretical analysis and proves the viability of the proposed structure.",

keywords = "Approximation, CMOS current mode design, Error, Exponential function generator, Translinear loop",

author = "Yildiz, {Hacer A.} and Lida Kouhalvandi and Serdar Ozoguz",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 42nd International Conference on Telecommunications and Signal Processing, TSP 2019 ; Conference date: 01-07-2019 Through 03-07-2019",

year = "2019",

month = jul,

doi = "10.1109/TSP.2019.8768858",

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series = "2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Yildiz, HA, Kouhalvandi, L & Ozoguz, S 2019, CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration. in N Herencsar (ed.), 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019., 8768858, 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019, Institute of Electrical and Electronics Engineers Inc., pp. 535-538, 42nd International Conference on Telecommunications and Signal Processing, TSP 2019, Budapest, Hungary, 1/07/19. https://doi.org/10.1109/TSP.2019.8768858

CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration. / Yildiz, Hacer A.; Kouhalvandi, Lida; Ozoguz, Serdar.
2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019. ed. / Norbert Herencsar. Institute of Electrical and Electronics Engineers Inc., 2019. p. 535-538 8768858 (2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019).

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde Bölüm › Konferans katkısı › bilirkişi

TY - GEN

T1 - CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration

AU - Yildiz, Hacer A.

AU - Kouhalvandi, Lida

AU - Ozoguz, Serdar

PY - 2019/7

Y1 - 2019/7

N2 - In this paper, CMOS realizations of exponential function generators are considered and it is shown that the inherent square-law characteristic of the CMOS can be effectively used to produce the required exponential characteristic. While many of the existing exponential function generators rely on complicated coefficient settings procedure, in order approach, the circuit inherently realizes the required approximating function. However, the additional errors due to square-law model limitation can be alleviated by using so-called cascade realization technique. The functionality of the design is confirmed with 65 nm CMOS process technology with ± 0.5 V power supply in saturation region. In this design the power dissipation is 150 μ W. Simulation results proves the correctness of the theoretical analysis and proves the viability of the proposed structure.

AB - In this paper, CMOS realizations of exponential function generators are considered and it is shown that the inherent square-law characteristic of the CMOS can be effectively used to produce the required exponential characteristic. While many of the existing exponential function generators rely on complicated coefficient settings procedure, in order approach, the circuit inherently realizes the required approximating function. However, the additional errors due to square-law model limitation can be alleviated by using so-called cascade realization technique. The functionality of the design is confirmed with 65 nm CMOS process technology with ± 0.5 V power supply in saturation region. In this design the power dissipation is 150 μ W. Simulation results proves the correctness of the theoretical analysis and proves the viability of the proposed structure.

KW - Approximation

KW - CMOS current mode design

KW - Error

KW - Exponential function generator

KW - Translinear loop

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U2 - 10.1109/TSP.2019.8768858

DO - 10.1109/TSP.2019.8768858

M3 - Conference contribution

AN - SCOPUS:85071065106

T3 - 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019

SP - 535

EP - 538

BT - 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019

A2 - Herencsar, Norbert

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 42nd International Conference on Telecommunications and Signal Processing, TSP 2019

Y2 - 1 July 2019 through 3 July 2019

ER -

Yildiz HA, Kouhalvandi L, Ozoguz S. CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration. In Herencsar N, editör, 2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 535-538. 8768858. (2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019). doi: 10.1109/TSP.2019.8768858

CMOS current-mode exponential/logarithmic function generator based on translinear loop configuration

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