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The design of CMOS power amplifiers (PAs) is still a challenging task. In this paper, a broadband amplifier for wireless applications in a 90 nm CMOS process is presented. The PA uses class-E topology to exploit its soft-switching property for high efficiency. The differential amplifier is based on a finite DC-feed inductance concept and includes an on-chip output balun. The circuit has been integrated...
A PMOS-based active inductor circuit for high-speed I/O applications is presented. The active inductor can operate with low voltage headroom and requires no voltage boosting. A prototype output driver circuit using the active inductor is implemented in 90 nm CMOS. The peaking frequency and its corresponding gain magnitude of the active-inductor circuit can be adjusted to facilitate channel loss compensation...
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