Analytical Synthesis of High-Pass, Band-Pass and Low-Pass Biquadratic Filters and its Quadrature Oscillator Application Using Current-Feedback Operational Amplifiers
نویسندگان
چکیده
In this paper, a method of realizing voltage-mode (VM) non-inverting high-pass filter (HPF), band-pass (BPF), low-pass (LPF), and inverting (ILPF) transfer functions structure with two grounded capacitors four resistors through an analytical synthesis is presented. The the VM biquadratic consists voltage proportional block lossless integrators based on use current feedback operational amplifiers (CFOAs). It demonstrated that derived can simultaneously realize HPF, BPF ILPF or LPF at high-input impedance terminal. independently adjust resonance angular frequency quality factor. By slightly modifying proposed filter, quadrature sinusoidal oscillator be achieved. have been simulated by OrCAD PSpice appropriate hardware has implemented AD844-type CFOAs. order to reduce power consumption, chip area, costs, improve system integration, integrated CFOA-based circuits are very important. further fabricated in $0.18~\mu \text{m}$ 1P6M CMOS process technology. entire area 0.974 mm 2 , including cell cell. Under supply ±0.9 V, total dissipation 5.4 mW, figure-of-merit (FOM) 66.7%. measured value third-order intermodulation distortion −55.29 dBc intercept point 19.9 dBm. phase noise 1 kHz offset less than −99.76 dBc/Hz.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2021
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2021.3050751