Aplicación del filtro de paso bajo (lpf) basado en el amplificador operacional de transconductancia (ota).

Ridouane Hamdaouy; Mostapha Boussetta; Khadija Slaoui.

Ridouane Hamdaouy
Mostapha Boussetta
Khadija Slaoui. University Sidi Mohamed Ben Abdellah, LESSI Laboratory, Department of Physics Faculty of Sciences, Dhar El Mehrez B.P. 1796, 30003 Fez-Atlas, Morocco

Palabras clave: Amplificador operacional de transconductancia, CMOS OTA, NMOS OTA, filtro

Resumen

Este artículo presenta el diseño del filtro de paso bajo de primer orden utilizando el amplificador operacional de transconductancia (OTA). Este documento ilustra una aplicación de OTA como un filtro de paso bajo activo. El bloque de construcción principal de una OTA es el espejo actual. Se utilizan diferentes réplicas actuales para diseñar el LPF y las respuestas de frecuencia y fase correspondientes se estudian de manera comparativa en este documento. Con OOS de CMOS OTA y NMOS de OTA de NMOS comparativos se estudiarán pero también se ilustran en este artículo.

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