Metamutator applications: a quadrature MOS only oscillator and transconductance/transimpedance amplifiers

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• 作者：Cem Göknar ; Merih Yıldız…
• 关键词：Circuit design ; Active networks ; Mutator ; Metamutator ; Oscillator ; CMOS
• 刊名：Analog Integrated Circuits and Signal Processing
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：89
• 期：3
• 页码：801-808
• 全文大小：1,797 KB
• 刊物类别：Engineering
• 刊物主题：Circuits and Systems
  Electronic and Computer Engineering
  Signal,Image and Speech Processing
  
• 出版者：Springer Netherlands
• ISSN：1573-1979
• 卷排序：89

文摘

NMOS based circuit realizations of a sinusoidal quadrature oscillator, a transconductance, a transimpedance amplifier are presented. All the circuits are constructed with a voltage-mode “Metamutator” consisting of an analog adder and a subtractor which is one of its possible realizations. The most important feature of the proposed circuits is their extremely simple structures containing only twelve NMOS transistors (six for adder, six for subtractor). Another significant advantage of the proposed circuits is that no external passive element is needed for the oscillator and only one resistor is used for each amplifier circuit; a variable resistor can provide gain adjustability. The post-layout simulations of all the proposed circuits have been executed using TSMC 0.25 µm process parameters with ±1.25 V power supply voltage.