Invention Grant
- Patent Title: Feedback compensation for multistage amplifiers
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Application No.: US15011635Application Date: 2016-01-31
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Publication No.: US09768740B2Publication Date: 2017-09-19
- Inventor: Xu Zhang , Gregory A. Blum
- Applicant: SKYWORKS SOLUTIONS, INC.
- Applicant Address: US MA Woburn
- Assignee: Skyworks Solutions, Inc.
- Current Assignee: Skyworks Solutions, Inc.
- Current Assignee Address: US MA Woburn
- Agency: Chang & Hale LLP
- Main IPC: H03F1/34
- IPC: H03F1/34 ; H03F1/48 ; H03F3/195 ; H03F3/45 ; H03F3/24

Abstract:
Feedback compensation for multistage amplifiers. In some embodiments, an amplifier can include a first stage, a second stage, and a third stage implemented in series between an input node and an output node. The amplifier can further include a first feedback path implemented between an output of the third stage and a node between the first and second stages, with the first feedback including a first capacitance. The amplifier can further include a second feedback path implemented between the output of the third stage and an output of the second stage. The second feedback pack can include a transconductance element and a second capacitance arranged in series. In some embodiments, such an amplifier can be configured as an operational-amplifier.
Public/Granted literature
- US20170026007A1 FEEDBACK COMPENSATION FOR MULTISTAGE AMPLIFIERS Public/Granted day:2017-01-26
Information query
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