High speed voltage following device for analog-to-digital...

Details High speed voltage following device for analog-to-digital... High speed voltage following device for analog-to-digital...

2011-05-31

2011-05-31

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

With particular solid state devices

C341S155000

Reexamination Certificate

active

07952503

ABSTRACT:
A voltage following device is described, for the driving of a sampling network coupleable to an analog/digital converter, comprising at least one first transistor provided with a first terminal to receive an input signal, and a second terminal to provide an output signal to the sampling network which is representative of the input signal translation of an amount equal to a gate and source voltage of said at least one first transistor. The voltage following device having a driving network of said at least one first transistor to keep said gate and source voltage equal to a shift reference voltage.

REFERENCES:
patent: 4542370 (1985-09-01), Yamada et al.
patent: 6456214 (2002-09-01), van der Wagt
patent: 2004/0150464 (2004-08-01), Khalid
patent: 2007/0285159 (2007-12-01), Moyer
Kenney et al., “An Enhanced Slew Rate Source Follower,” IEEE Journal of Solid-State Circuits, 30(2):144-146, Feb. 1995.
Fan et al., “Analysis and Design of Low-Distortion CMOS Source Followers,” IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 52(8):1489-1501, Aug. 2005.
Fan et al., “Improving Source-Follower Buffer for High-Speed ADC Testing,” IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), Piscataway, NJ, USA, Dec. 1, 2006, pp. 21-24.

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