Invention Grant
- Patent Title: Complementary variable gain amplification
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Application No.: US16115475Application Date: 2018-08-28
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Publication No.: US10651807B2Publication Date: 2020-05-12
- Inventor: Timothy Donald Gathman , Chirag Dipak Patel , Lai Kan Leung , Xinmin Yu
- Applicant: Qualcomm Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Colby Nipper/QUALCOMM Incorporated
- Main IPC: H03F3/04
- IPC: H03F3/04 ; H03F1/22 ; H03F3/68 ; H03F1/02 ; H03F3/195

Abstract:
An apparatus is disclosed for complementary variable gain amplification. In an example aspect, the apparatus includes a variable gain amplifier that includes multiple amplifiers. The multiple amplifiers include at least one first amplifier and at least one second amplifier cascaded together in series. The first amplifier includes a first set of transistors having a first doping type. At least a portion of the first set of transistors is configured to implement a first current mirror. The second amplifier includes a second set of transistors having a second doping type. At least a portion of the second set of transistors is configured to implement a second current mirror. The second current mirror is coupled to the first current mirror.
Public/Granted literature
- US20200076387A1 Complementary Variable Gain Amplification Public/Granted day:2020-03-05
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