TRABALHOS PUBLICADOS
2015 |
Design and Analysis of a two-Stages Miller Compensated OpAmp for High-Speed applications Proceedings Article Cavalcante, Tássio Côrtes; Faria, Lester Abreu Resumo | Links | BibTeX | Tags: Operational amplifiers Analog integrated @inproceedings{T\'{a}ssio2015Operationalb,Defense Applications need high-performance systems. In the last few years, Brazilian Air Force has bought several new aircrafts, which are equipped with the most developed Electronic Warfare avionics. But all of these equipments are bought from foreign companies, letting BAF exposed to a probable embargo. In this context, it is highly desirable to develop our own avionics, which must be necessarily based on a SoC design and on ICs platforms. Operational Amplifiers (OpAmps) serve as the basic building blocks in almost every analog and mixed-signal electronic circuit. Especially when focusing on complex circuits, they must be fully designed from the In this beginning, achieving improved performances. paper it is presented the design of a Two-stage Miller Compensated OpAmp for high-speed Applications. The circuit is designed in the 0.35µm CMOS technology, process C35B4C3 of AustriaMicroSystems. LTSPICE software was used for simulation and results show that the OpAmp has a 88.6dB open-loop DC gain, a unity gain- bandwidth of 120.7 MHz, a Phase Margin of 60.3º and a Slew rate of 76.2V/µs, when driving a load of 1pF. It shows an improved performance when compared to previous ones found in literature, presenting a high slew rate and a high DC gain simultaneously. The device performance was verified positively both at the schematic and at the layout practical showing level, implementations. |