DTMOS Transistör Tabanlı OTA Kullanan Düşük-Gerilimli ve Düşük-Güçlü Analog Çarpıcı/Bölücü

Year 2021, Volume: 23 Issue: 68, 413 - 420, 24.05.2021

Melih Yıldırım

https://doi.org/10.21205/deufmd.2021236806

Abstract

Bu çalışmada düşük gerilimli ve düşük güçlü akım modlu bir analog çarpıcı/bölücü tasarımı sunulmuştur. Çarpıcı/bölücü devresi dinamik eşik gerilimli MOS (DTMOS) yapısından yararlanan işlemsel geçiş iletkenliği kuvvetlendiricisi (OTA) tabanlıdır ve sadece üç tane OTA devresinden oluşmaktadır. Devre düşük güç tüketimi ve düşük gerilim kaynağına ihtiyaç duyma özelliklerine sahiptir. Önerilen çarpıcı/bölücü tasarımının benzetimlerini gerçekleştirmek için 0.13µm IBM CMOS teknoloji parametreleri kullanılmıştır ve simülasyon sonuçları LTspice programı kullanılarak elde edilmiştir. Akım modlu analog çarpıcı/bölücü mimarisi DTMOS transistör yapısı sayesinde yalnızca 12.07nW güç tüketmekte ve ±0.2V luk besleme gerilimine ihtiyaç duymaktadır. Beklenen teorik sonuçlarla uyumlu simülasyon sonuçları elde edilmiştir.ts.

Keywords

Çarpıcı, Bölücü, DTMOS, OTA, Düşük Gerilim

Low-Voltage and Low-Power Analog Multiplier/Divider Using OTA Based on DTMOS Transistor

Abstract

A low-voltage and low-power current mode analog multiplier/divider design is presented in this paper. The multiplier/divider is based on operational transconductance amplifier (OTA) utilizing dynamic threshold MOS (DTMOS) structure and consists of only three OTAs. The circuit has the ability of consuming low power and requiring low voltage power supplies. 0.13µm IBM CMOS technology parameters are used to simulate the suggested multiplier/divider design and the simulation results are obtained using LTspice program. The current mode analog multiplier/divider architecture consumes only 12.07nW and requires ±0.2V of supply voltages thanks to employing DTMOS transistor. The simulation results agree well with the expected results.

Keywords

Multiplier, Divider, DTMOS, OTA, Low Voltage, Low Power

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