Operational transconductance amplifier
US10658992B1 · kind B1 · utility
1Cited by
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11Claims
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Key dates
| Filing date | Dec 28, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jan 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45352
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for implementing an operational transconductance amplifier (OTA) based on telescopic topology, wherein cascode transistors of the operational transconductance amplifier (OTA) are self-biased without using additional biasing circuitry, which not only reduces power consumption but also achieves high gain without extra current, and each cascode stage of the OTA has a pair of transistors so that the swing of the output differential signals of the OTA can be completely symmetrical so as to benefit second-order harmonic rejection, CMRR and PSRR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.