Performance evaluation of a 32-nm CNT-OPAMP in analog circuits: Design and comparison of Elliptical filters
| Autor: | Ikram Ilyas, Fahim ur Rahman, Niger Fatema, Refaya Taskin Shama |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Engineering
Analogue electronics business.industry Bandwidth (signal processing) Electrical engineering Phase margin Hardware_PERFORMANCEANDRELIABILITY law.invention Carbon nanotube field-effect transistor Filter design CMOS law Hardware_INTEGRATEDCIRCUITS Electronic engineering Operational amplifier Elliptic filter business Hardware_LOGICDESIGN |
| Zdroj: | 2012 IEEE 11th International Conference on Solid-State and Integrated Circuit Technology. |
| DOI: | 10.1109/icsict.2012.6467737 |
| Popis: | In this paper, we have presented the design and characteristic performance evaluation of an Elliptical filter for 800 Hertz bandwidth. First we designed the filter by using Silicon-based CMOS Operational Amplifiers (Si-OPAMPs). Then we designed the filter with Carbon Nanotube-based Operational Amplifiers (CNT-OPAMPs) using a benchmark nine-transistor Operational Amplifier (OPAMP) model with singlewalled Carbon Nanotube Field-Effect Transistors (SW-CNTFETs) as primary building-blocks for 32nm technology. We compared the performance between the two and achieved higher phase margin, improved power dissipation, and significantly low output resistance for the CNT-OPAMP based filter. Then we further evaluated the performance of the CNT-OPAMP based filter by changing the number of SWNTs used for making each of the CNTFET, keeping all other design parameters the same. Our simulation-based assessment has shown a satisfactory superiority for CNT-OPAMP filter design in comparison with Si-based CMOS filter design. The results obtained suggest that the CNT-OPAMP has a promising potential for low-power, highspeed applications in both analog and mixed-signal nanoelectronic circuits. |
| Databáze: | OpenAIRE |
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