Superconductor analog to digital converter
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United States of America Patent
Stats
-
May 19, 2020
Grant Date -
N/A
app pub date -
Mar 8, 2019
filing date -
Aug 15, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Superconductor analog-to-digital converters (ADC) offer high sensitivity and large dynamic range. One approach to increasing the dynamic range further is with a subranging architecture, whereby the output of a coarse ADC is converted back to analog and subtracted from the input signal, and the residue signal fed to a fine ADC for generation of additional significant bits. This also requires a high-gain broadband linear amplifier, which is not generally available within superconductor technology. In a preferred embodiment, a distributed digital fluxon amplifier is presented, which also integrates the functions of integration, filtering, and flux subtraction. A subranging ADC design provides two ADCs connected with the fluxon amplifier and subtractor circuitry that would provide a dynamic range extension by about 30-35 dB.
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- H03M Class
- 39.65 % this patent is cited more than
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