Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1990-02-28
1991-11-26
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330261, 330307, 330308, H03F 345
Patent
active
050686224
ABSTRACT:
An integrated circuit amplifier having a random input offset voltage is adaptable such that the input offset voltage may be cancelled out. An inverting input node is a floating input node and is coupled to a source of input signal by a first capacitor. A second capacitor is connected between the output of the amplifier and the floating node. An ultraviolet window above the second capacitor allows the floating node to be charged, by the application of ultraviolet light, to a voltage which effectively cancels the input offset voltage. The ultraviolet window and capacitor electrodes are arranged such that the ultraviolet light may strike only the desired areas of the structure.
REFERENCES:
patent: 4665426 (1987-05-01), Allen et al.
Glasser, A UV Write-Enhanced PROM, 1985 Chapel Hill Conference on Very Large Scale Integration, pp. 61-65.
Allen Timothy P.
Mead Carver A.
D'Alessandro Kenneth
Mullins James B.
Synaptics Incorporated
LandOfFree
CMOS amplifier with offset adaptation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with CMOS amplifier with offset adaptation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CMOS amplifier with offset adaptation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2388190