Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Patent
1996-07-15
1998-05-05
Young, Brian K.
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
H03M 112
Patent
active
057481326
ABSTRACT:
According to the present invention, an A/D converter for receiving an input voltage and outputting a digital signal representing a level of the input voltage by a number n (where n is a natural number equal to or larger than 2) of upper bits and a number m (where m is a natural number equal to or larger than 2) of lower bits is provided. The A/D converter includes: a reference voltage generator for generating a plurality of reference voltages; an upper bit generator for generating the upper bits by comparing the input voltage with the plurality of reference voltages; a selector for selecting a first voltage equal to or higher than the input voltage and a second voltage equal to or lower than the input voltage from the plurality of reference voltages; a first differential amplifier for amplifying a difference between the first voltage and the input voltage and outputting an amplified voltage; a second differential amplifier for amplifying a difference between the second voltage and the input voltage and outputting an amplified voltage; a lower bit generator for generating the lower bits by using the output voltage of the first differential amplifier and the output voltage of the second differential amplifier; and a synthesis circuit for generating the digital signal by synthesizing the upper bits with the lower bits.
REFERENCES:
patent: 5151700 (1992-09-01), Matsuzawa et al.
patent: 5321402 (1994-06-01), Matsuzawa et al.
Matsushita Electric - Industrial Co., Ltd.
Young Brian K.
LandOfFree
Interpolation type A/D converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interpolation type A/D converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolation type A/D converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-58958