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This article presents a current-mode multifunction biquadratic filter performing completely standard functions low-pass, high-pass, band-pass, band-reject and all-pass functions. The circuit principle is based on second-generation current-controlled current conveyor (CCCII) with three input terminals and one output terminal. The features of the circuit are that, the pole frequency can be electronically...
This article presents a four-inputs single output biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on single current controlled current follower transconductance amplifier (CCCFTA). The features of the circuit are that; the quality factor and natural frequency can be tuned electronically via the input bias current;...
A new current-controlled current-mode universal filter with three inputs and single output employing two translinear current conveyor and two grounded capacitors is presented. The proposed circuit provides low-pass, band-pass, high-pass, bandstop and all-pass current responses from the same configuration at a high impedance terminal. The filter also offers independent electronic control of the natural...
A new current-mode current-controlled single-input multiple-output universal filter, which employing only three translinear current conveyors and two grounded capacitors. The proposed configuration provides lowpass, bandpass, highpass, bandstop and allpass current responses at a high output impedance terminal, which enable easy cascadability of the circuit. The circuit parameters natural frequency...
This paper reports a new programmable Gm-C-OTA integrator and filter, which allows on-chip periodic analog signal generation and in essence, fulfils the function of the D/A converter. The method has the attributes of digital programming and control capability, robustness and reduced area overhead, which make it suitable for built-in self-test applications. The circuit has been fabricated in standard...
A voltage-mode Buck converter with a novel pseudo-type III compensation is presented. It maintains the fast load transient response, as confirmed by the measured loop gain, and 7 mus settling time for 500 mA load current step. It also transforms the type III compensator into a summation of an area- and power-efficient error amplifier plus a low-power band-pass filter. Consequently, the area and power...
In this paper, a new current-mode second-order square-root-domain notch filter is proposed. The design is based on the state-space synthesis method with two subcircuit; square-root and squarer/divider circuits. In the circuit, the input and the output values, and dominant variables are all currents. Only MOS transistors and grounded capacitors are required to realize the filter circuit. Three cases...
In this paper, current-mode second-order square-root-domain highpass, and allpass filters are proposed by using only a circuit. Literature survey showed that, current-mode second-order highpass and allpass filters are not proposed. The proposed circuit is derived from first-order blocks. The presented of the first-order blocks are based on the state-space synthesis method with two subcircuit; square-root...
A new current-mode universal biquadratic filter with two inputs and two outputs employing only two translinear current conveyors with controlled gain and two grounded capacitors is proposed. The proposed circuit offers the following features: realization of lowpass, bandpass, highpass, bandstop and allpass current responses from the same configuration, no requirements for component-matching conditions,...
This paper presents switched-capacitor bandpass filters used within the sense system of implantable medical devices such as cardiac pacemakers and defibrillators. This work examines the methods; including filter architecture, discrete-time transformation, and operational amplifier (opamp) topology; to reduce current consumption and to lower supply voltages for switched capacitor filters to reach nano-watt...
In this study, a CMOS current controlled current differencing buffered amplifier (C-CDBA) implementation is presented. Also, a novel first-order all-pass filter is proposed to show its advantages. Simulation results are in good agreement with the theoretical ones.
This paper presents a new current-mode universal filter with three inputs and three outputs employing only two multiple-output current-controlled current conveyors and two grounded capacitors. The proposed circuit can simultaneously realize of lowpass, bandpass, highpass and bandstop current responses from same configuration. The proposed filter also enjoys an independent current control of parameters...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
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