This paper presents a new common-mode stabilization method for a CMOS differential cascode Class-E power amplifier with LCtank based driver stage. The stabilization method is based on the identification of the poles and zeros of the closed-loop transfer function at a critical node. By adding a series resistor at the common-gate node of the cascode transistor, the right-half-plane poles are move...

This paper presents a third-order Butterworth low-pass filter (LPF) with continuously tuning capability to be used in the receiver front-end for Wireless Body Area Network (WBAN). To realize bandwidth multi-standard operation WBAN receivers ultra-low power consumption and minimized area, novel transconductor-capacitor (Gm-C) is proposed. The proposed transconductor core uses an additional gain ...

A low noise amplifier has been designed using a 2SK117 N channel J-FET as the input device in a cascode [1] configuration. Noise measurements on this amplifier yield a low frequency noise current of 0.25 fA/Yfu and a voltage noise of less than 1.2 n V NHz in the 500 Hz to 50 kHz region. Bloyet et al. [2] suggest a figure of merit of the product of the noise voltage and current as being appropri...

Now days, low power and low energy have become an important issue in consumer electronics and it is necessary to do research in combinational circuits. One of the important elements in digital circuits is a multiplexer or data selector for processing multiple inputs with a single output. Presently, multiplexers have become a universal logic element used to design any digital combinational logic...

This paper reports an extensive analysis of the physical mechanisms responsible for the failure of GaN-based metal–insulator–semiconductor (MIS) high electron mobility transistors (HEMTs). When stressed under high applied electric fields, the traps at the dielectric/III-N barrier interface and inside the III-N barrier cause an increase in dynamic on-resistance and a shift of threshold voltage, ...

This paper describes a self-oscillation in the bias network of an amplifier which is commordy used for the output stage in mobile transmitters. It is demonstrated how some often observed spurious oscillations may be related to the self-osciffation and a method for sl.abitiiingthe amplifier is derived and discussed.

This study reports a general methodology for making stable high-performance photosensitive field effect transistors (FET) from self-assembled columns of polycyclic aromatic hydrocarbons by using single-walled carbon nanotubes (SWNTs) as point contacts. In particular, the molecules used in this work are liquid crystalline materials of tetra(dodecyloxy)hexabenzocoronenes (HBCs) that are able to s...

Abstract: In the paper, the folded-cascode low-noise operational amplifier (LNA) with constant-gm is proposed and analyzed. The channel-length split technique adopted to expand ratio of W/L of the differential pair transistor to improve the performance of LNA for the gain bandwidth product, noise and offset voltage. The channel-length split method is separated differential input transistor into...

In conventional CMOS charge pump circuits there are some current mismatching characteristics which result in a phase offset in phase-locked loop circuits. This paper presents a new charge pump circuit after scrutinizing the deeper examination of the existing current mismatch problem. It combines an error amplifier with reference current sources to achieve good current matching characteristics a...

This paper presents a wideband low-noise amplifier (LNA) designed to be used as the first stage of the receiver in the Square Kilometer Array radio telescope. The LNA design procedure and its layout features are discussed. The noise figure optimization procedure determines the signal-source resistance that results in reduced noise figure. When used in the radio telescope, the required signal-so...