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

Hacer A. Yildiz, Lida Kouhalvandi, Serdar Ozoguz

Araştırma sonucu: ???type-name???Konferans katkısıbilirkişi

4 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 dilİngilizce
Ana bilgisayar yayını başlığı2019 42nd International Conference on Telecommunications and Signal Processing, TSP 2019
EditörlerNorbert Herencsar
YayınlayanInstitute of Electrical and Electronics Engineers Inc.
Sayfalar535-538
Sayfa sayısı4
ISBN (Elektronik)9781728118642
DOI'lar
Yayın durumuYayınlandı - Tem 2019
Etkinlik42nd International Conference on Telecommunications and Signal Processing, TSP 2019 - Budapest, Hungary
Süre: 1 Tem 20193 Tem 2019

Yayın serisi

Adı2019 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/BölgeHungary
ŞehirBudapest
Periyot1/07/193/07/19

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.

FinansörlerFinansör numarası
Istanbul Technical University the Scientific Research Projects Unit
Firat University Scientific Research Projects Management UnitMDK-2019-41968

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