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In the paper, the folded-cascode operational amplifier with constant-gm is proposed and analyzed. The proposed low-noise operational amplifier (LNA) can be expanded the ratio of W/L in the differential pair transistor by the channel-length split method that the performance of amplifier for the product of gain and bandwidth, noise and offset voltage to improved The area of the transistor (W, L) can...
A 10GHz double balanced Gilbert-cell mixer using 0.18-mum complementary metal oxide semiconductor (CMOS) technology is presented in this paper. This mixer has a noise figure of 13.1 dB and conversion gain 10.3 dB at 10GHz RF frequency under the supply voltage of 1.8 V. The power consumption of this mixer is about 0.6 mW at an IF frequency of 10 MHz. The active chip area is 1.1 times 0.9 mm2. The mixer...
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