Ultra linear spectroscopic analog-to-digital converter

Details Ultra linear spectroscopic analog-to-digital converter Ultra linear spectroscopic analog-to-digital converter

1990-04-02

1991-04-23

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341165, 341127, H03M 134

Patent

active

050103393

ABSTRACT:
A sliding scale averaging technique is employed for an analog-to-digital converter. An analog signal is summed with a varying number prior to conversion. This causes repeated input voltage signals of the same value to be converted in different bins of the ADC converter thereby minimizing errors due to unequal bin widths. The present invention includes a comparator technique for ensuring that the summed signal does not exceed the full dynamic range of the ADC.

REFERENCES:
patent: 4839650 (1989-06-01), Geen et al.
patent: 4897650 (1990-01-01), Shott, III et al.
Giangano, D. A., "Ultra-Linear, 14-Bit Spectroscopy ADC," Grumman Corporate Research Center, Bethpage, New York.
Cottini, et al., "Letters to the Editor--A New Method for Analog to Digital Conversion," Nuclear Instruments and Methods, 24 (1963) 241-242; North--Holland Publishing Co.
Correia, et al., "An Analog-to-Digital Converter Module for Nuclear Spectrometry," Nuclear Instruments and Methods in Physics Research, A235 (1985) 536-241 North--Holland, Amsterdam.
Xianjie, et al., "A New Sliding Scale Principle and the Spectroscopic ADC Based on this Principle," Nuclear Instruments and Methods in Physics Research, A259 (1987) 521-524, North Holland, Amsterdam.
Morita, M., et al. "An Ultra High Throughput ADC," IEEE Transactions on Nuclear Science, vol. 36, No. 1, Feb. 1989.
Ditigal Device Corp., 12-bit,.+-.1/2 LSB DNL, 500 nSec, Subranging ADC.

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