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:
- Issue Date:
- Research Org.:
- Hypres, Inc., Elmsford, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 875003
- Patent Number(s):
- 6509853
- Application Number:
- 09/950,993
- Assignee:
- Hypres, Inc. (Elmsford, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03M - CODING
- DOE Contract Number:
- FG02-98ER82799
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2001 Sep 13
- 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}
}