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On designing linearly tunable high-Q OTA-C filters with low sensitivity
(Proceedings - IEEE International Symposium on Circuits and Systems, 2004-09-07) [Trabalho apresentado em evento]
This paper discusses a design approach for a high-Q low-sensitivity OTA-C biquad bandpass section. An optimal relationship is established between transconductances defining the differenceβ - γ in the Q-factor denominator, ...
An accurate low-voltage analog memory-cell with built-in multiplication
(Proceedings - IEEE International Symposium on Circuits and Systems, 2001-01-01) [Trabalho apresentado em evento]
A CMOS memory-cell for dynamic storage of analog data and suitable for LVLP applications is proposed. Information is memorized as the gate-voltage of input-transistor of a gain-boosting triode-transconductor. The enhanced ...
A low-voltage low-sensitivity sinusoidal VCO for DPLL realizations
(Proceedings - IEEE International Symposium on Circuits and Systems, 2004-09-07) [Trabalho apresentado em evento]
A quasi-sinusoidal linearly tunable OTA-C VCO built with triode-region transconductors is presented. Oscillation upon power-on is ensured by RHP poles associated with gate-drain capacitances of OTA input devices. Since the ...
A low-voltage programmable-gain CMOS amplifier with very-low temperature-drift
(Proceedings - IEEE International Symposium on Circuits and Systems, 2001-01-01) [Trabalho apresentado em evento]
A new topology for a LVLP variable-gain CMOS amplifier is presented. Input- and load-stage are built around triode-transconductors so that voltage-gain is fully defined by a linear relationship involving only device-geometries ...