CMOS continuous-time and switched-capacitor filters which operate at high frequencies with high Quality factor Q are difficult to realize. The finite gain and tlie fulite bandwidth of the integrator amplifiers are the main limitation. This paper describes two techniques to siniultaneously increase bandwidth. transconductance. and DC-gain of an amplifier without changing the excess bias or the p...

CMOS continuous-time and switched-capacitor filters which operate at high frequencies with high Quality factor Q are difficult to realize. The finite gain and the finite bandwidth of the integrator amplifiers are the main limitation. This paper describes two techniques to simultaneously increase bandwidth, transconductance, and DC-gain of an amplifier without changing the excess bias or the pow...

This paper is about a new dc-dc converter based on VOLTAGE MULTIPLIER CELL and MULTI STATE SWITCHING CELL. This method can be applied for all type of converters like BUK, BOOST,BUKBOOST,CUK,SEPIC &ZETA. To verify the operating principle BOOST converter is chosen. Experimental analysis is obtained from 1Kw lab prototype and the results are verified using simulation software. The output current a...

INTRODUCTION: In our previous work on passive current source RF power amplifiers, it was noted that additional inter-element isolation in a parallel transmit coil array was possible when the lengths of the coaxial cables that connected the amplifiers to the coils were reduced [1,2]. In addition, shorter cable lengths also lead to reduced power loss and cost. This can be achieved by placing the ...

Transient response; Power supply rejection. Abstract—To realize DC voltage conversion from 3.3V to 1.8V for SoC application, a fully on-chip Low Drop-Out (LDO) voltage regulator with 150mA driving capability is presented. Implemented in 0.18μm CMOS technology, the proposed LDO voltage regulator utilizes paralleled input differential pairs and current amplifiers to provide fast transient respons...

Exploratory work on the behavior of dc and pulse excited COlaser amplifiers has resulted in the design and construction of a prototype laser radar transmitter. It is capable of an output of 1 kW average power in a train of 10 |j.sec pulses at a pulse repetition rate of 10 kc. This report summarizes the experimental results leading to the final design, outlines the design features and discusses ...

A novel circuit topology for high-gain distributed amplifiers is presented in this study. Based on the conventional distributed architecture, the gain cells are realized by cascading cascode stages for gain enhancement. In addition, the stagger-tuning technique is extensively utilized in the design of the cascode stages as well as the cascaded stages, leading to significant improvement in terms...

Compact low-voltage power-efficient operational amplifiers are described that are very suitable as very-largescale-integration library cells because of the small die area of 0.08 mm and the minimum supply voltage of 1.8 V. A key part of the circuit is the rail-to-rail class-AB output stage with folded mesh feedback control that combines power efficiency with operation down to 1.8 V and allows s...

Abstract: Telescopic amplifiers are often preferred for their large DC gain, low power dissipation and low flicker noise. On the other side, they suffer from serious problems like poor input common mode range and output swing. In this work, a simple technique to improve the input common mode range of telescopic structure is presented. To achieve this, two telescopic amplifiers using complementa...

AC amplifiers can introduce significant distortions into the low frequency and DC components of recorded electrophysiological data such as event-related potentials (ERPs). Methods for correcting such distortions (i.e., estimating the waveform of the original data) after the data have been amplified and recorded rely on an accurate estimate of the amplifier's time constant (TC). We show that the...