Presentation
Accurate dynamic-feedback CMOS cross-quad suitable for low-voltage operation
Author/s | Calvo, Belén
López Martín, Antonio Ramírez Angulo, Jaime González Carvajal, Ramón |
Department | Universidad de Sevilla. Departamento de Ingeniería Electrónica |
Publication Date | 2009 |
Deposit Date | 2015-03-12 |
Published in |
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Abstract | This paper presents the implementation of a crossquad
circuit suitable for low-voltage operation. The proposed cell
exploits a dynamic positive feedback gm boosting technique to
achieve linear voltage-to-current conversion, ... This paper presents the implementation of a crossquad circuit suitable for low-voltage operation. The proposed cell exploits a dynamic positive feedback gm boosting technique to achieve linear voltage-to-current conversion, while it manages to work with low-voltage with no extra bias current and minimal additional hardware. Results for a 0.5 m CMOS implementation supplied at 3 V show a 0.972 % voltage-tocurrent accuracy, improving the 0.867 % accuracy of a previously reported cross-quad topology also suitable for lowvoltage operation which is based on folded transistors. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | A/018704/08 |
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