Active load clamp for a track-and-hold circuit

Details Active load clamp for a track-and-hold circuit Active load clamp for a track-and-hold circuit

2005-10-11

2005-10-11

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C327S094000

Reexamination Certificate

active

06954168

ABSTRACT:
A method and apparatus are provided for tracking and holding a voltage. The method includes the steps of providing an external analog voltage on an input of the track and hold circuit during a tracking mode of the track and hold circuit, storing a representation of the sampled external voltage in a storage device of the track and hold circuit, blocking a signal path between the external voltage and the storage device during a holding mode of the track and hold circuit and clamping the input of the track and hold circuit to a predetermined voltage during the holding mode.

REFERENCES:
patent: 3659117 (1972-04-01), Caveney et al.
patent: 5180932 (1993-01-01), Bengel
patent: 5291074 (1994-03-01), Nayebi
patent: 5734276 (1998-03-01), Abdi et al.

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