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US 2026/0205066 A1Published application
Stacked feedback transimpedance amplifiers
OwnerRamy Awad, Amal Gaafar Ahmed Mohamedinventors
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Abstract
The techniques described herein relate to stacked feedback transimpedance amplifiers. An example transimpedance amplifier includes a first amplifier comprising a first terminal, and a second amplifier comprising a second terminal, the second terminal coupled to the first terminal, wherein the first amplifier and the second amplifier are configured to reverse bias a photodetector.
Claims20
A transimpedance amplifier comprising:
- a first amplifier comprising a first terminal;
- and
- a second amplifier comprising a second terminal, the second terminal coupled to the first terminal, wherein the first amplifier and the second amplifier are configured to reverse bias a photodetector.
A circuit comprising:
- a transimpedance amplifier comprising:
- a first amplifier comprising a first terminal;
- and
- a second amplifier comprising a second terminal, the second terminal coupled to the first terminal, wherein the first amplifier and the second amplifier are configured to reverse bias a photodetector;
- and
- a filter circuit coupled to the transimpedance amplifier and configured to reduce the bias from an output of the transimpedance amplifier.
3 more elements
An optical receiver comprising:
- a transimpedance amplifier circuit configured to receive a current converted from an optical signal by a photodetector, the transimpedance amplifier circuit comprising a first amplifier and a second amplifier in a stacked arrangement configured to reverse bias the photodetector;
- a first direct current control loop configured to control current through a first feedback network of the first amplifier;
- and
- a second direct current control loop configured to control current through a second feedback network of the first amplifier.
1 more element
Dependencies are inferred from the claim text.