• Title/Summary/Keyword: Translinear Loop

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Analog Multiplier Using Translinear Current Conveyor

  • Chaikla, Amphawan;Kaewpoonsuk, Anucha;Wangwi-wattana, C.;Riewruja, Vanchai;Jaruvanawat, Anuchit
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.80.1-80
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    • 2002
  • In this article, an alternative analog multiplier circuit, using the translinear second-generation current conveyors with the external resistors. The realization method makes use of the inherited translinear loop of the current conveyor offering the positive-supply current that provides in the quartersquare algebraic identity. The proposed circuit operates in voltage mode and it achieves a high accuracy. The PSPICE simulation results confirm that the performances of the proposed multiplier circuit, such as dynamic range and accuracy, are agreed with the theoretical results.

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A Study on Circuit Design Method for Linearity and Range Improvement of CMOS Analog Current-Mode Multiplier (CMOS 아날로그 전류모드 곱셈기의 선형성과 동적범위 향상을 위한 회로설계 기법에 관한 연구)

  • Lee, Daniel Juhun;Kim, Hyung-Min;Park, So-Youn;Nho, Tae-Min;Kim, Seong-Kweon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.15 no.3
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    • pp.479-486
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    • 2020
  • In this paper, we present a design method for improving the linearity and dynamic range of the analog current mode multiplier circuit, which is one of the key devices in an analog current mode AI processor. The proposed circuit consists of 4 quadrant translinear loops made up of NMOS transistors only, which minimizes physical mismatches of the transistors. The proposed circuit can be implemented at 117㎛ × 109㎛ in 0.35㎛ CMOS process and has a total harmonic distortion of 0.3%. The proposed analog current mode multiplier is expected to be useful as the core circuit of a current mode AI processor.