Invention Grant
- Patent Title: Photo receiver circuits
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Application No.: US16275786Application Date: 2019-02-14
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Publication No.: US11067439B2Publication Date: 2021-07-20
- Inventor: Hae-Seung Lee
- Applicant: Omni Design Technologies Inc.
- Applicant Address: US CA Milpitas
- Assignee: Omni Design Technologies Inc.
- Current Assignee: Omni Design Technologies Inc.
- Current Assignee Address: US CA Milpitas
- Agency: Intrinsic Law Corp.
- Main IPC: G01J1/44
- IPC: G01J1/44 ; H03F3/45 ; H03F3/68

Abstract:
Photo receiver circuits comprising photo diode, a first amplifier, a second amplifier, and a feedback resistor are disclosed. The photo diode receives a light signal producing a photo current and the circuit produces an output voltage proportional to the photo current. In one example, the second amplifier coupled across the photo diode provides a voltage level shift between the input terminal and the output terminal, bootstrapping the parasitic capacitance out.
Information query