Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1995-03-08
1996-05-14
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327 94, 327306, 327 91, G11C 2702
Patent
active
055171419
ABSTRACT:
A differential track and hold amplifier circuit (200) is provided. The track and hold amplifier includes an input transconductance amplifier (212), an output amplifier (111), and a second transconductance amplifier (214). The track and hold circuit further includes a switching circuit (108) for coupling the output of the input transconductance amplifier to a capacitor (110) in the output stage of the track and hold circuit during track mode, and for decoupling the capacitor from the input amplifier during hold mode. The track and hold circuit further includes a subtractor circuit (103) for reducing a common mode voltage of the output of the input transconductance amplifier, thereby maintaining a stable voltage across the capacitor during hold mode. Further, during hold mode, the second transconductance amplifier acts in a negative feedback configuration to reduce the gain of the input amplifier to attenuate its output signal.
REFERENCES:
patent: 4150310 (1979-04-01), Emile, Jr.
patent: 4370572 (1983-01-01), Cosand et al.
patent: 4845382 (1989-07-01), Eouzan et al.
patent: 5019722 (1991-05-01), Hess et al.
patent: 5220219 (1993-06-01), Barber
Abdi Behrooz
Stuhlmiller Gary
Botsch Sr. Bradley J.
Callahan Timothy P.
Dover Rennie W.
Le Dinh T.
Motorola Inc.
LandOfFree
Differential high speed track and hold amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Differential high speed track and hold amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential high speed track and hold amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1898800