A 100MHz CMOS wideband IF amplifier

Henrik Sjöland; Sven Mattisson

doi:10.1109/4.663569

A 100MHz CMOS wideband IF amplifier

Henrik Sjöland, Sven Mattisson

Department of Electrical and Information Technology

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Abstract

When the data rates of communication systems increase, wideband IF amplifiers are needed. It is also possible to use a single wideband intermediate frequency (IF) amplifier for a radio band with several narrow-band channels of varying strengths. The linearity is then critical, if intermodulation products are not to disturb weak channels. We try to find a topology for this new amplifier application, suitable for integration in a standard CMOS process. To get low distortion, we use an output stage with high linearity, which is further linearized by feedback in a double-nested Miller configuration. A 0.8-μm standard CMOS IF amplifier design with low distortion up to 20 MHz is presented.

Original language	English
Pages (from-to)	631-634
Journal	IEEE Journal of Solid-State Circuits
Volume	33
Issue number	4
DOIs	https://doi.org/10.1109/4.663569
Publication status	Published - 1998

Subject classification (UKÄ)

Electrical Engineering, Electronic Engineering, Information Engineering

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10.1109/4.663569

A100663569

Cite this

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AB - When the data rates of communication systems increase, wideband IF amplifiers are needed. It is also possible to use a single wideband intermediate frequency (IF) amplifier for a radio band with several narrow-band channels of varying strengths. The linearity is then critical, if intermodulation products are not to disturb weak channels. We try to find a topology for this new amplifier application, suitable for integration in a standard CMOS process. To get low distortion, we use an output stage with high linearity, which is further linearized by feedback in a double-nested Miller configuration. A 0.8-μm standard CMOS IF amplifier design with low distortion up to 20 MHz is presented.

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A 100MHz CMOS wideband IF amplifier

Abstract

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