40 research outputs found

    Circuit design in complementary organic technologies

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    Printed organic TFTs on flexible substrate for complementary circuits

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    Organic Thin film Transistors (OTFT) have been widely investigated in these last years as potential candidate for the development of low cost, flexible and lightweight active-matrix backplanes for display applications. Indeed the organic semiconductors provide both promising electrical performances tunable by chemistry and the ability to be processed at low temperature with innovative printing technics on various large scale substrates. Thanks to the recent developments on both n-type and p-type solution-processed organic semiconductors, we have developed a printable organic complementary technology compatible with flexible PEN substrates. By combining state of the art materials exhibiting mobility in the range of 1 cm 2 /V.s and silicon inspired compact modeling and simulation approach, we were able to design and fabricate circuit's building blocks that provide the switching, digital and analog functions required for the fabrication of printed systems on foil

    A new architecture for low-power high-speed pipelined ADCs using double-sampling and opamp-sharing techniques

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    This paper presents a low-voltage low-power pipelined ADC with 1V supply voltage in a 90nm CMOS process. A new architecture is proposed to reduce the power consumption in high-speed pipelined analog-to-digital converters (ADCs). The presented architecture utilizes a combination of two current power-reduction techniques, double sampling and amplifier sharing. To decrease the power dissipation more efficiently, the stage scaling technique has been applied to the ADC and dynamic comparators have been used in sub-ADCs. Using this approach, a 10-bit 200MSample/s pipelined ADC has been designed in a 90nm CMOS technology. HSPICE simulation results show a signal-to-noise plus distortion ratio (SNDR) of 58.5dB with a 9.375MHz, 1-VP-P,diff input signal while consuming only 30.9mW power from a 1V supply voltage

    The relationship between religious orientation and spiritual experience, self-esteem of pregnant mother’s city of Susa

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    Faith a significant impact on the human soul because confidence and her strength, patience and tolerance have increased the hardships of life and a sense of security and peace in his soul established and within comfort remember creates. Method of present study is descriptive and correlational. The study population included all of pregnant mother’s city of Susa in 2015 that of this number (50) were selected by simple random sampling. The tool measuring data include: religious orientation questionnaire (Allport), scale of Spiritual Experience (DSES) and self-esteem scale (Rosenberg). To analyze the data using statistical software SPSS and correlation coefficient and regression analysis were used. Pearson correlation coefficients showed that the spiritual experience and there is no significant relationship between self-esteem and also found that between self-esteem and there is a significant negative relationship between the religious orientation. Given the importance of the role of religion, mental health and physical recommended mothers in the promotion and fostering spirituality among of pregnant mothers more attention. © Medwell Journals, 2016

    A low-voltage low-power 10-bit 200 MS/s pipelined ADC in 90 nm CMOS

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    This paper presents a low-power 10-bit 200 MS/s pipelined ADC in a 90 nm CMOS technology with 1 V supply voltage. To decrease the power dissipation efficiently, a new architecture using a combination of two power reduction techniques named double-sampling and opamp-sharing has been used to reduce the power consumption significantly, without any degradation in the performance of the ADC. In addition, the stage scaling technique has been applied to the ADC efficiently, and two-stage class A/AB and class A amplifiers and dynamic comparators have been used in sample and hold and sub-ADCs. According to HSPICE simulation results, the 10-bit 200 MSample/s pipeline ADC with a 9.375 MHz, 1-VP-P,diff input signal in a 90 nm CMOS process achieves a SNDR of 58.5 dB while consuming only 30.9 mW power from a 1 V supply voltage

    Organic and amorphous-metal-oxide flexible analogue electronics

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    Recent years have witnessed significant research efforts in flexible organic and amorphous-metal-oxide analogue electronics, in view of its formidable potential for applications such as smart sensor systems. This Element provides a comprehensive overview of this growing research area. After discussing the properties of organic and amorphous-metal-oxide technologies relevant to analogue circuits, this Element focuses on their application to two key circuit blocks: amplifiers and analogue-to-digital converters. The Element thus provides a fresh look at the evolution and immediate opportunities of the field, and identifies the remaining challenges for these technologies to become the platform of choice for flexible analogue electronics
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