Pipeline type analog to digital converter including plural serie

Details Pipeline type analog to digital converter including plural serie Pipeline type analog to digital converter including plural serie

1995-11-02

1997-05-13

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341155, 341156, H03M 134

Patent

active

056297009

ABSTRACT:
An A/D converter block A/D1 converts an analog input signal Vin to a digital signal and outputs its D/A output. First SH/SUBT7, 8 sample the signal Vin and a voltage VRM at the same timing with said A/D conversion and output the results of subtraction of the respective sampling values and the D/A output during holding, respectively. The both results of subtraction are several tens mV and there is no need of taking account of the linearity of a differential amplifier DIFF11. During the sampling, a circuit SHR1 outputs the differential voltages between each reference tap voltage taken out from specific 2 points of the ladder-type resistor in the A/D converter block A/D1 and the voltage VRM while a differential amplifier DIFF12 applies the reference voltages to the next A/D converter block A/D2. Such operations are performed in each stage. Thus, it becomes possible to make any S/H circuit and amplifier of excellent linearity in the first stage unnecessary to reduce the electric power consumption.

REFERENCES:
patent: 5291198 (1994-03-01), Dingwall et al.
patent: 5387914 (1995-02-01), Mangelsdorf
patent: 5436629 (1995-07-01), Mangelsdorf
patent: 5499027 (1996-03-01), Karnicolas et al.
patent: 5534864 (1996-07-01), Ono et al.
patent: 5548287 (1996-08-01), Gendai
IEEE 1991 Custom Integrated Circuits Conference, pp. 26.4.1-26.4.4, Stephen H. Lewis, et al., "A Pipelined 9-Stage Video-Rate Analog-To-Digital Converter".
IEEE 1992 Custom Integrated Circuits Conference, pp. 16.7.1-16.7.4, Michio Yotsuyanagi, et al., "A 10BIT 50Msample/sec Pipelined CMOS A/D Converter with S/H".
Analog Devices, Design-In Reference Manual, Part Numbers AD875 and 873 Aug. 1994.

Affiliated with

Also associated with

Rating

Pipeline type analog to digital converter including plural serie does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pipeline type analog to digital converter including plural serie, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipeline type analog to digital converter including plural serie will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1388666