7-BIT CURRENT-MODE ANALOG/DIGITAL CONVERTER DESIGN BASED ON CURRENT MULTIPLICATION TECHNIQUE

Öz

Current mode signal processing has some advantages over voltage mode signal processing in low voltage and low power applications because of not requiring high precision resistors or capacitors. And one reason to be chosen current mode signal processing is many signal sources are current-type, such as temperature sensors, photo sensors and many others in biomedical. This study reports development and simulation of two types of Analog/Digital Converters (ADCs)for low-power and small area applications, such as implantable telemetric biomedical recording applications. In development of these analog-to-digital (AD) converters current mode signal processing is chosen.

Anahtar Kelimeler

• Analog-digital converter, Current mode approach, Current mirror, Current multiplication

AKIM ÇARPMA TEKNİĞİ KULLANILARAK 7-SEVİYELİ AKIM-MODLU ANALOG/SAYISAL DÖNÜŞTÜRÜCÜ TASARIMI

Öz

voltage and low power applications because of not requiring high precision resistors or capacitors. And one reason to be chosen current mode signal processing is many signal sources are current-type, such as temperature sensors, photo sensors and many others in biomedical. This study reports development and simulation of two types of Analog/Digital Converters (ADCs)for low-power and small area applications, such as implantable telemetric biomedical recording applications. In development of these analog-to-digital (AD) converters current mode signal processing is chosen

Anahtar Kelimeler

• Analog sayısal çevirici, Akım modlu yaklaşım, Akım aynaları, Akım çarpma

Kaynakça

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5. Nairn D. G., Salama C. A. T. (1988): “Current-Mode Algorithmic Analog-to-Digital Converter”, International Symposium on Circuits and Systems, s. 2573-2576.
6. Nairn D. G., Salama C. A. T. (1990): “Algorithmic Analogue-to-Digital Converters Using Current-Mode Techniques”, IEE Proceedings, Cilt. 137, s. 163-168.
7. Tezel A. (1999): “VLSI Implementation of Low Power Current Mode CMOS Algorithmic Analog to Digital Converters”, MSc., Thesis. Middle East Technical University.
8. Toumazou C., Lidgey F., Haigh D. G. (1990): “Analogue IC Design: the Current-Mode Approach” Peter Peregrinus Ltd., London.