Design of an operational amplifier using differential evolution algorithm
- Autores: Soleyman Gholinezhad, Jafar Tafifard
- Localización: QUID: Investigación, Ciencia y Tecnología, ISSN-e 2462-9006, ISSN 1692-343X, Nº. Extra 1, 2017, págs. 2300-2306
- Idioma: inglés
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Resumen
Today, one of the most important parameters for designing integrated circuits is to choose the suitable of length and width of transistors in CMOS process. The purpose of this paper is to use a differential evolution algorithm to optimize the parameters of operational amplifier. The circuit uses a multi-objective optimization technique to optimize several charactersics of amplifier such as bandwidth, power consumption, etc. as the cost function parameters. In this paper, a new method using multi-objective genetic algorithm based on the Pareto Front for designing the telescopic cascode structure is considered. In this design, two transistors play as input drivers and the other two transistors act as active load current providing high output resistance for this class. Transistors used for cascoding input transistors and active load transistors were used to increase the output of the circuit and thus result in a high gain for the entire circuit. The maximum power consumption should be 5 mW, the gain value was equal to 2143.3 and the bias voltage for transistors was 1.6 V
