A Decade-Bandwidth Low-Noise Mixer RFIC with a Distortion-Canceling Output Amplifier
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Authors
El-Gabaly, Ahmed M.
Li, Hao
Saavedra, Carlos E.
Date
2016-08-08
Type
journal article
Language
en
Keyword
Wideband Receivers , Transconductor , High Frequencies
Alternative Title
Abstract
This paper presents a 1-10 GHz low-noise downconvert mixer RFIC suitable for wideband receivers. A switched transconductor mixing core is adopted to reduce noise at high frequencies. By adding a series inductor to the RF transconductor, a flat 4-5 dB noise figure (NF) and a high gain of 26.5 dB can be achieved over a broad bandwidth out to 10 GHz. A CMOS output amplifier is also integrated on-chip, employing derivative superposition (DS) for high linearity and an OIP3 of 16.5 dBm. The circuit consumes less than 20 mW of dc power and occupies an active chip area of less than 0.2 mm2.