Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1998-01-07
2000-02-22
Pascal, Robert
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330255, H03F 345
Patent
active
06028479&
ABSTRACT:
A high-speed low-voltage line-driver circuit implemented using various embodiments of high speed current-feedback opamps is disclosed. The line driver of the present invention uses a fully differential architecture whereby common-mode disturbances, such as noise due to substrate or power supply, are cancelled. The driver also uses a current-feedback approach to achieve larger bandwidth. In a specific embodiment, the current-feedback opamp used in the line driver of the present invention uses class A/B structure for both input and output stages.
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Bales, "A Low-Power, High-Speed, Current-Feedback Op-Amp with a Novel Class AB High Current Output Stage," IEEE Journal of Solid-State Circuits, vol. 32, No. 9, Sep. 1997, pp. 1470-1474.
Smith et al., "Evolution of High-Speed Operational Amplifier Architectures," IEEE Journal of Solid-State Circuits, vol. 29, No. 10, Oct. 1994, pp. 1166-1179.
Nguyen Khanh Van
Pascal Robert
Plato Labs, Inc.
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