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Low-voltage wide gm adjustable range highly linear bicmos OTA


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Author: Ramírez Angulo, Jaime
Sawant, Milind S.
López Martín, Antonio
González Carvajal, Ramón
Department: Universidad de Sevilla. Departamento de Ingeniería Electrónica
Date: 2005
Published in: IEICE Electronics Express, 2(4), 127-132
Document type: Article
Abstract: A low distortion low-voltage BiCMOS OTA with wide gm adjustment range and constant input range is presented. It is based on a highly linear voltage-to-current converter input stage merged with translinear loops that implement linear electronically programmable current mirrors. Experimental results are provided that confirm the characteristics of the proposed OTA with a single 1.7V supply, 1.2V input range, two decades gain adjustment range, and 0.3% THD.
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