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A 100-MHz CMOS wide-band IF amplifier

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2 Author(s)
H. Sjoland ; Dept. of Appl. Electron., Lund Univ., Sweden ; S. Mattisson

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

Published in:

IEEE Journal of Solid-State Circuits  (Volume:33 ,  Issue: 4 )