Programmable gain amplifier with linear in dB gain control
US10845440B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 26, 2018 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Jun 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/543
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various approaches of adjusting a gain of received signals in integrated circuitry include implementing an open-loop source-degenerated amplifier having a pair of input devices for amplifying the received signals; boosting an effective transconductance of the input devices (e.g., using a pair of super-gm feedback loops); and setting a bias current of devices in the open-loop source-degenerated amplifier (e.g., using a constant-gm bias circuit).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.