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A 5th-order switched-capacitor (SC) complex filter is implemented in 0.2-??m CMOS technology. In order to reduce the die size and current consumption of the complex filter, a novel SC integrator is developed. The filter is centered at 24.8 kHz with bandwidth of 20.2 kHz. The Image channel is attenuated by more than 40 dB. The in-band 3rd order harmonic input intercept point (IIP3) is 15 dBm and the...
A 3rd order complex band-pass filter (BPF) with auto-tuning architecture is proposed in this paper. It is implemented in 0.18 ??m standard CMOS technology. The complex filter is centered at 4.092 MHz with bandwidth of 2.4 MHz. The in-band 3rd order harmonic input intercept point (IIP3) is larger than 19 dBm, with 50 ?? as the source impedance. The input referred noise is about 80 ??Vrms. The RC tuning...
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