Disconnecting a time discrete circuit from a track-and-hold...

Details Disconnecting a time discrete circuit from a track-and-hold... Disconnecting a time discrete circuit from a track-and-hold...

2007-04-03

2007-04-03

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Sample and hold

C341S155000

Reexamination Certificate

active

10857844

ABSTRACT:
A system and method for an improved analog front-end system is disclosed. By coupling a switch to the output of a track-and-hold circuit and to the input of a time-discrete circuit, such as an analog-to-digital converter, the time-discrete circuit can be disconnected from the track-and-hold circuit during the track mode of the track-and-hold circuit. This improved system reduces the load of the T/H circuit from the full input capacitance of the time-discrete circuit to the smaller parasitics of the switch thereby providing a T/H circuit with lower power consumption and smaller area while maintaining high speed and high accuracy. When the time-discrete circuit is an analog-to-digital converter, the system and method may also include a second shorted switch coupled between the first switch and the analog-to-digital converter for canceling the charge injection of the first switch and thereby enabling the analog-to-digital converter to convert an analog signal to a digital signal during the track phase of the track-and-hold circuit.

REFERENCES:
patent: 4338665 (1982-07-01), Aono et al.
patent: 4535318 (1985-08-01), Duryee et al.
patent: 4677422 (1987-06-01), Naito
patent: 5389929 (1995-02-01), Nayebi et al.
patent: 5418533 (1995-05-01), Knierim
patent: 6127958 (2000-10-01), Chang et al.
patent: 6710734 (2004-03-01), Ono et al.

Affiliated with

Also associated with

Rating

Disconnecting a time discrete circuit from a track-and-hold... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disconnecting a time discrete circuit from a track-and-hold..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disconnecting a time discrete circuit from a track-and-hold... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3724048