Switched memristor analog-to-digital conversion
AssigneeHewlett Packard Enterprise Development LP
InventorBrent Buchanan
Life of this patent
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Abstract
Switched memristor digital-to-analog conversion employs a set of switch-selectable programmed resistances corresponding to a digital-to-analog conversion mapping to convert a digital input into an analog output. The digital input is to establish an analog resistance of a plurality of switched memristors connected in series that are switch selectable. The plurality of switched memristors is to provide the set of switch-selectable programmed resistances in accordance with the digital-to-analog conversion mapping.
Claims15
A switched memristor digital to analog converter (DAC) comprising:
- a plurality of switched memristors connected in series to provide a set of switch-selectable programmed resistances, a switched memristor of the plurality comprising a memristor connected in parallel with a switch, the switch to select the memristor, the memristor having a programmable analog resistance to provide a programmed resistance of the set of switch-selectable programmed resistances,
- wherein the set of switch-selectable programmed resistances comprises predetermined programmed resistances to define a digital-to-analog conversion mapping, the switched memristor DAC to convert a digital input into a corresponding analog output according to the digital-to-analog conversion mapping.
A switched memristor digital-to-analog converter (DAC) system comprising:
- a switched memristor array comprising a plurality of switch selectable memristors connected in series, the switched memristor array to provide a set of switch-selectable programmed resistances corresponding to a digital-to-analog conversion mapping;
- and
- a resistance-sensing circuit connected to the switched memristor array both to sense an analog resistance of the set of switch-selectable programmed resistances corresponding to a digital input and the digital-to-analog conversion mapping and to provide an output signal determined from the sensed analog resistance,
- wherein the sensed analog resistance is provided by both switch selection of a switch selectable memristor of the plurality corresponding to the digital input and a programmed resistance of the selected switch selectable memristor.
A method of digital-to-analog conversion using a switched memristor array, the method comprising:
- programming memristors of a switched memristor array with a set of switch-selectable programmed resistances to define a digital-to-analog conversion mapping;
- activating a switch of the switched memristor array according to a digital input to establish according to the digital-to-analog conversion mapping an analog resistance of the switched memristor array corresponding to the digital input;
- and
- generating an analog output proportional to the established analog resistance,
- wherein the generated analog output is an analog representation of the digital input according to the digital-to-analog conversion mapping.
Dependencies are inferred from the claim text.