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Title: Subranging technique using superconducting technology

Abstract

Subranging techniques using "digital SQUIDs" are used to design systems with large dynamic range, high resolution and large bandwidth. Analog-to-digital converters (ADCs) embodying the invention include a first SQUID based "coarse" resolution circuit and a second SQUID based "fine" resolution circuit to convert an analog input signal into "coarse" and "fine" digital signals for subsequent processing. In one embodiment, an ADC includes circuitry for supplying an analog input signal to an input coil having at least a first inductive section and a second inductive section. A first superconducting quantum interference device (SQUID) is coupled to the first inductive section and a second SQUID is coupled to the second inductive section. The first SQUID is designed to produce "coarse" (large amplitude, low resolution) output signals and the second SQUID is designed to produce "fine" (low amplitude, high resolution) output signals in response to the analog input signals.

Inventors:
 [1]
  1. (Hawthorne, NY)
Issue Date:
OSTI Identifier:
875003
Patent Number(s):
6509853
Assignee:
Hypres, Inc. (Elmsford, NY) CHO
DOE Contract Number:  
FG02-98ER82799
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
subranging; technique; superconducting; technology; techniques; digital; squids; design; systems; dynamic; range; resolution; bandwidth; analog-to-digital; converters; adcs; embodying; squid; based; coarse; circuit; fine; convert; analog; input; signal; signals; subsequent; processing; embodiment; adc; circuitry; supplying; coil; inductive; section; quantum; interference; device; coupled; designed; produce; amplitude; output; response; output signal; input signal; interference device; analog-to-digital converter; /341/

Citation Formats

Gupta, Deepnarayan. Subranging technique using superconducting technology. United States: N. p., 2003. Web.
Gupta, Deepnarayan. Subranging technique using superconducting technology. United States.
Gupta, Deepnarayan. Wed . "Subranging technique using superconducting technology". United States. https://www.osti.gov/servlets/purl/875003.
@article{osti_875003,
title = {Subranging technique using superconducting technology},
author = {Gupta, Deepnarayan},
abstractNote = {Subranging techniques using "digital SQUIDs" are used to design systems with large dynamic range, high resolution and large bandwidth. Analog-to-digital converters (ADCs) embodying the invention include a first SQUID based "coarse" resolution circuit and a second SQUID based "fine" resolution circuit to convert an analog input signal into "coarse" and "fine" digital signals for subsequent processing. In one embodiment, an ADC includes circuitry for supplying an analog input signal to an input coil having at least a first inductive section and a second inductive section. A first superconducting quantum interference device (SQUID) is coupled to the first inductive section and a second SQUID is coupled to the second inductive section. The first SQUID is designed to produce "coarse" (large amplitude, low resolution) output signals and the second SQUID is designed to produce "fine" (low amplitude, high resolution) output signals in response to the analog input signals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

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