Back to results
US 11,533,027 B2Granted
Low power receiver circuit for isolated data communications
AssigneeAnalog Devices, Inc.
InventorXiao Hong Du
Life of this patent
Estimating the term…
Abstract
Data isolators are described. The data isolators include a differential receiver having cross-coupled single-ended amplifiers. The single-ended amplifiers may be referenced to a time-varying reference potential. The cross-coupling of the single-ended amplifiers may provide high speed, low power consumption operation of the data isolator.
Claims20
A low power differential data isolator circuit, comprising:
- a transmitter;
- an isolator;
- and
- a differential receiver comprising first and second single-ended amplifiers that are cross-coupled with each other, the cross-coupling comprising a coupling between the second single-ended amplifier and a non-control terminal of a transistor of the first single-ended amplifier, wherein:
- the first single-ended amplifier comprises an output terminal distinct from the non-control terminal of the transistor of the first single-ended amplifier;
- and
- the first single-ended amplifier is configured to receive a single input signal at a signal input terminal.
4 more elements
A differential data isolator circuit, comprising:
- a transmitter;
- an isolator;
- and
- a differential receiver comprising a first single-ended amplifier referenced to a time-varying reference potential, the time-varying reference potential being coupled to a non-control terminal of a transistor of the first single-ended amplifier, wherein:
- the first single-ended amplifier comprises an output terminal distinct from the non-control terminal of the transistor of the first single-ended amplifier;
- and
- the first single-ended amplifier is configured to receive a single input signal at a signal input terminal.
4 more elements
A differential receiver circuit of a data isolator system, comprising:
- a first signal path comprising a first single-ended amplifier;
- and
- a second signal path comprising a second single-ended amplifier coupled to the first single-ended amplifier, the coupling comprising a coupling between the second single-ended amplifier and a non-control terminal of a transistor of the first single-ended amplifier, wherein:
- the first single-ended amplifier comprises an output terminal distinct from the non-control terminal of the transistor of the first single-ended amplifier;
- and
- the first single-ended amplifier is configured to receive a single input signal at a signal input terminal.
3 more elements
Dependencies are inferred from the claim text.