The laccase enzyme is the largest group of Oxidoreductase enzymes and is capable of oxidizing a wide range of organic substrates to water along with molecular oxygen resuscitation. ZnO nanoparticles are known for their specific properties such as chemical stability, high electrochemical coupling rates, and wide range of absorption of radiation as multifunctional compounds. In this study, ZnO po...

In a direct-conversion wireless receiver the baseband filter should be able to handle large blockers, resulting in a very challenging spurious free dynamic range (SFDR) requirement. In particular, the noise added in-band trades off with the linearity required to handle close out-of-band interferers [1]. Since the integrated noise generally is proportional to kT/C, once the noise floor for the f...

The adjustable balanced-signal current amplifier presented in this paper amplifies a current by first transforming it into a voltage signal using two poly-silicon resistors and then back into a current signal using a single MOSFET resistor operating in the linear region. We implemented the amplifier in the double-poly 0.6 μm CMOS process by Austria Mikro Systeme International. It consumes 12.4 ...

This paper gives an overview of some of the effects caused by circuit mismatch and parasitics in binary weighted digital-to-analog (DAC) converters, and, as a special case, a current-steering CMOS converter. Matlab is used as a behavior-level simulator. In telecommunications applications, the frequency-domain parameters are of the greatest importance. Therefore, the characterization of the devi...

High-linearity, low-noise DFB lasers are necessary for analog optical communications, including subcarrier multiplexed systems, wireless personal communication systems (PCS) service and phased array radar. In this thesis, we examine the dynamic range and distortion for a Fujitsu DFB laser. We extract parameters from the device and use these parameters to simulate the distortion characteristics....

After doing a literature survey on the DFFS algorithms ([1] ~ [6]) proposed in recent years (after 2000), we select the algorithm presented in [1] to be implemented in our project. Compared with other algorithm we study in the literature survey, the selected algorithm is able to achieve highest clock frequency and spurious free dynamic range (SFDR) while requires a modest implementation complex...

The integral nonlinearity (INL) is used for the post-correction of analog-digital converters (ADCs). An inputfrequency-dependent INL-model is developed for the postcorrection. The model consists of a static term that is dependent on the ADC output code and a dynamic term that has an additional dependence on the input frequency. The concept of ADC digital output post-correction by INL is first i...

The laccase enzyme is the largest group of Oxidoreductase enzymes and is capable of oxidizing a wide range of organic substrates to water along with molecular oxygen resuscitation. ZnO nanoparticles are known for their specific properties such as chemical stability, high electrochemical coupling rates, and wide range of absorption of radiation as multifunctional compounds. In this study, ZnO po...