Publication: High-linearity open-loop fixed-gain buffers and amplifiers
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Electronics Engineering
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Institute of Science and Technology
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Bu çalışmada, yüksek hızlı açık çevrimli tampon katlar ve kuvvetlendiriciler tasarlanmıştır, ilk aşamada adaptif bir akım kaynağı devresi gerçeklenmiş ve bipolar tabanlı farksal kuvvetlendiricilerin kazancını ayarlamakta kullanılmıştır. Bu devreler belverme geriliminin kritik olduğu düşük besleme uygulamalarında kullanılabilirlik göstermektedir. Doğrusallık karakteristiğini arttırmak amacıyla, yüksek besleme gerilimleriyle çalışmaya uygun iki kazanç katı da ayrıca tasarlanmıştır. Devre gerçeklemesi Spectre devre simülatörü kullanılarak yapılmıştır. Benzetimler AMS 0.35 um SiGe BİCMOS teknolojisi model parametreleri baz alınarak yapılmıştır. Tasarlanan devrelerin çevresel koşullara karşı hassas olmadığını kanıtlamak amacıyla her devre farklı model parametreleri ve sıcaklık için analiz edilmiştir. Yapılan benzetim sonuçları tasarlanan devrelerin -3dB kesim noktasının 1GHz'in üzerinde olduğunu göstermiştir.
In this study, several high-speed bipolar open-loop buffers and amplifiers were designed. In first step an adaptive current source is generated and used in calibrating gain of bipolar based differential pairs. These circuits are feasible for low- voltage applications where breakdown voltage is critical. In order to increase linearity behavior two novel amplifier topologies are also designed for high-voltage applications. Spectre circuit simulator was used as the simulator. Circuits were verified by using AMS's 0.35u.m SiGe BiCMOS process. To validate circuits' invulnerability to environmental conditions, each circuit is simulated with different model parameter sets and temperature. Simulation results have shown that each designed circuit has -3dB intercept point over 1GHz.
In this study, several high-speed bipolar open-loop buffers and amplifiers were designed. In first step an adaptive current source is generated and used in calibrating gain of bipolar based differential pairs. These circuits are feasible for low- voltage applications where breakdown voltage is critical. In order to increase linearity behavior two novel amplifier topologies are also designed for high-voltage applications. Spectre circuit simulator was used as the simulator. Circuits were verified by using AMS's 0.35u.m SiGe BiCMOS process. To validate circuits' invulnerability to environmental conditions, each circuit is simulated with different model parameter sets and temperature. Simulation results have shown that each designed circuit has -3dB intercept point over 1GHz.
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Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2005
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Kurumsal arşive yüklenen tüm eserler telif hakkı ile korunmaktadır. Bunlar, bu kaynak üzerinden herhangi bir amaçla görüntülenebilir, ancak yazılı izin alınmadan herhangi bir biçimde yeniden oluşturulması veya dağıtılması yasaklanmıştır.
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All works uploaded to the institutional repository are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
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Metal oksit yarıiletkenler, Tamamlayıcı, İki kutuplu bütünleşmiş devreler, Metal oxide semiconductors, Complementary, Bipolar integrated circuits
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