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Antonio Liscidini - One of the best experts on this subject based on the ideXlab platform.
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a 150 μw 3 rd order butterworth passive switched capacitor filter with 92 db sfdr
Symposium on VLSI Circuits, 2017Co-Authors: Zeynep S Lulec, D A Johns, Antonio LiscidiniAbstract:For the first time, complex conjugate poles are integrated on silicon by using only switches and capacitors. A general design methodology is proposed to implement low-pass transfer functions with sharper frequency profile compared to the passive-switched-capacitor topologies present in the Literature. Theory and simulation results are validated through the measurements of a 0.13μm prototype filter. The 3rd-order filter has a cut-off frequency of 540 kHz, an integrated input referred noise of 17μV and out-of-band IIP3 of 55dBm, while consuming 150μW in the phase clock generator.
Zeynep S Lulec - One of the best experts on this subject based on the ideXlab platform.
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a 150 μw 3 rd order butterworth passive switched capacitor filter with 92 db sfdr
Symposium on VLSI Circuits, 2017Co-Authors: Zeynep S Lulec, D A Johns, Antonio LiscidiniAbstract:For the first time, complex conjugate poles are integrated on silicon by using only switches and capacitors. A general design methodology is proposed to implement low-pass transfer functions with sharper frequency profile compared to the passive-switched-capacitor topologies present in the Literature. Theory and simulation results are validated through the measurements of a 0.13μm prototype filter. The 3rd-order filter has a cut-off frequency of 540 kHz, an integrated input referred noise of 17μV and out-of-band IIP3 of 55dBm, while consuming 150μW in the phase clock generator.
Maria Ft Loho - One of the best experts on this subject based on the ideXlab platform.
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Secretory Leukocyte Protease Inhibitor in Preterm Labor and Pregnancy: Secretory Leukocyte Protease Inhibitor pada Persalinan dan Kehamilan Prematur
'Indonesian Society of Obstetrics and Gynecology', 2018Co-Authors: Sutiono Ferriyanto, Kaeng, Juneke J, Maria Ft LohoAbstract:Objective: To investigate the levels of secretory leukocyteprotease inhibitor (SLPI) in women with preterm labor andpregnancy. Methods: SLPI level examination conducted to 32 samples ofpregnant women who meet the inclusion and exclusion criteria,consists of 16 preterm labor and 16 preterm pregnancy.Sample analysis carried out in Prodia Laboratory Jakarta. SLPIlevel examination used ELISA method. The obtained dataprocessed by SPSS software version 20.0 and discussed withexisting Literature Theory. Results: Mean plasma SLPI level in patients with preterm laboris 30.319 ng/ml and median: 29.950 ng/ml with p value: 0.652,while the mean on preterm pregnancy is 45.975 ng/ml andmedian: 41.600 ng/ml with p value: 0.005. Conclusion: There are significant differences of SLPI level betweenpreterm labor and preterm pregnancy. Keywords: preterm labor, preterm pregnancy, SLP
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Secretory Leukocyte Protease Inhibitor in Preterm Labor and Pregnancy
Indonesian Society of Obstetrics and Gynecology, 2018Co-Authors: Ferriyanto Sutiono, Juneke J Kaeng, Maria Ft LohoAbstract:Objective: To investigate the levels of secretory leukocyte protease inhibitor (SLPI) in women with preterm labor and pregnancy. Methods: SLPI level examination conducted to 32 samples of pregnant women who meet the inclusion and exclusion criteria, consists of 16 preterm labor and 16 preterm pregnancy. Sample analysis carried out in Prodia Laboratory Jakarta. SLPI level examination used ELISA method. The obtained data processed by SPSS software version 20.0 and discussed with existing Literature Theory. Results: Mean plasma SLPI level in patients with preterm labor is 30.319 ng/ml and median: 29.950 ng/ml with p value: 0.652, while the mean on preterm pregnancy is 45.975 ng/ml and median: 41.600 ng/ml with p value: 0.005. Conclusion: There are significant differences of SLPI level between preterm labor and preterm pregnancy. Keywords: preterm labor, preterm pregnancy, SLP
D A Johns - One of the best experts on this subject based on the ideXlab platform.
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a 150 μw 3 rd order butterworth passive switched capacitor filter with 92 db sfdr
Symposium on VLSI Circuits, 2017Co-Authors: Zeynep S Lulec, D A Johns, Antonio LiscidiniAbstract:For the first time, complex conjugate poles are integrated on silicon by using only switches and capacitors. A general design methodology is proposed to implement low-pass transfer functions with sharper frequency profile compared to the passive-switched-capacitor topologies present in the Literature. Theory and simulation results are validated through the measurements of a 0.13μm prototype filter. The 3rd-order filter has a cut-off frequency of 540 kHz, an integrated input referred noise of 17μV and out-of-band IIP3 of 55dBm, while consuming 150μW in the phase clock generator.
Lulec, Sevil Zeynep - One of the best experts on this subject based on the ideXlab platform.
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A Continuous-Time Modelling and Design Approach for Oversampled Passive Switched-Capacitor Filters
2019Co-Authors: Lulec, Sevil ZeynepAbstract:Integrated technology advances towards shorter length transistors with faster operation frequencies and lower supply and threshold voltages. While these trends are pushed by digital performance, analog and RF designs do not necessarily benefit from them. Traditional high gain and high bandwidth operational amplifiers become harder to design, and thus topologies based on "digital friendly" components such as switches and capacitors can become preferable. In terms of filter design, these trends favour passive switched-capacitor networks, where active components (such as operational amplifiers) are not needed to transfer charge in between capacitors. This thesis proposes a simplified continuous-time approach for modelling, design, analysis, and simulation of oversampled switched-capacitor circuits focusing on the passive switched-capacitor filters. The model provides an intuitive understanding of these structures by letting designers reach transfer functions and noise characteristics with good accuracy and without the need to go through complicated charge-balance equations. The aim of the model is mainly to give designers a tool that can lead to innovations through intuitive understanding. It is applicable to a variety of topologies including multi-phase passive switched-capacitor filters, switched-capacitor integrators, as well as switched-capacitor DC/DC converters. With the proposed model, for the first time, complex-conjugate poles are integrated on silicon by using only switches and capacitors. A continuous-time approach is reported to implement low-pass transfer functions with a sharper frequency profile compared to the passive switched-capacitor topologies present in the Literature. Theory and simulation results are verified with measurements performed on the filter prototype integrated in a 0.13 um CMOS technology. The prototype has a cut-off frequency of 470 kHz, 150 uW power consumption from a 1.2 V power supply, 92 dB SFDR, and an active area of 0.06 mm2.Ph.D