This paper presented a method for the design of a high frequency CMOS operational amplifier. The OPAMP is designed using tsmc 0.18 micron CMOS technology which operates at 2.5V power supply. This is a two stage CMOS OPAMP which employs a miller capacitor. To design a two stage OPAMP is a multi-dimensional optimization problem where optimization of one or more parameters may easily result into d...

AbstractChopping is a proficient way to reduce the low frequency offset and 1/f noise in amplifiers. In this paper, a low power low noise CMOS chopper amplifier is presented. It is composed of a two stage amplifier. The first stage’s high output impedance and the equivalent Miller capacitance of the second stage constitute together a low pass filter, which reduces the power consumption. The cir...

Time-domain responses of wideband CMOS amplifiers using several inductive peaking techniques are presented. Transient performance considerations are described including the effects of transistor parasitics on settling time, edge rates, etc. A combination of timeand frequency-domain performance is derived for a given bandwidth extension technique and tradeoffs are discussed. Measured results for...

PURPOSE In several studies, gain of the distal long arm of chromosome 17 was shown to be a frequent and prognostically relevant factor in neuroblastoma, in addition to MYCN amplification (MNA) or 1p deletion. We asked whether this observation could be confirmed in a German cohort. EXPERIMENTAL DESIGN To evaluate the frequency and prognostic impact of 17q gain, we investigated tissue samples f...

abstract background: the readiness of mothers to take care for infants at discharge is a critical issue. poor readiness of mothers in taking care of premature infants at the time of discharge is associated with potential adverse consequences. this study examined the effect of implementing mothers’ empowerment program on the weight gain and duration of hospitalization in premature infants. mater...

Comparative genomic hybridization was applied to 51 primary esophageal squamous cell carcinomas (ESCCs) to clarify the relation between DNA sequence copy number aberrations (DSCNAs) and the clinicopathology of the disease. The average number of DSCNAs was 10.9 DSCNAs/tumor (6.1 gains and 4.9 losses), ranging from 1-30 DSCNAs/tumor. Gain of 3q26-qter and loss of 18q22-qter were detected in >60% ...

In a never-ending effort to reduce power consumption and gate oxide thickness, the integrated circuit industry is constantly developing smaller power supplies. Furthermore, in an effort to reduce costs and integrate analog and digital circuits onto a single chip, MOS devices are used in the weak inversion region or the subthreshold inversion region to minimize dc source power. A feasible config...

High-resolution electronic interface circuits for transducers with nonlinear capacitive impedance need an operational amplifier, which is stable for a wide range of load capacitance. Such operational amplifier in a conventional design requires a large area for compensation capacitors, increasing costs and limiting applications. In order to address this problem, we present a gain-boosted two-sta...

This paper presents a high-frequency frdly differential BiCMOS operational amplifier designed for use in switched-capacitor circuits. The OP amp is integrated in a 3. O-GHZ, 2~m BiCMOS process with an active die area of 1.0 mm x 1.2 mm. This BiCMOS op amp offers an infinite input resistance, a dc gain of 100 dB, a nnity-gain freqnency of 90 MHz with 45° phase margin, and a slew rate of 150 V/ p...