The Experts below are selected from a list of 5856 Experts worldwide ranked by ideXlab platform
Kana Washio - One of the best experts on this subject based on the ideXlab platform.
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A wide-dynamic-range, high-transimpedance Si bipolar preamplifier IC for 10-Gb/s optical fiber links
IEEE Journal of Solid-State Circuits, 1999Co-Authors: Kazuhiro Ohhata, R. Takeyari, K Imai, T Masuda, Kana WashioAbstract:A wide-dynamic-range, high-transimpedance preamplifier IC for 10-Gb/s optical fiber links was developed using a 0.3-/spl mu/m Si bipolar process. The preamplifier with a limiting amplifier enables a wide dynamic range from 16 /spl mu/App to 2.5 mApp and a high transimpedance of 1 k/spl Omega/ (2 k/spl Omega/ in the differential output mode). Moreover, careful circuit design achieves a transimpedance fluctuation of 0.5 dBR and an average Equivalent Input Noise current density of 12 pA//spl radic/Hz. This preamplifier IC has the highest transimpedance of any Si bipolar preamplifier for 10-Gb/s operation. Thus, the preamplifier is suitable for 10-Gb/s short-haul optical fiber links and can be used to provide a low-cost system.
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a wide dynamic range 1 k spl omega transimpedance si bipolar preamplifier ic for 10 gb s optical fiber links
Custom Integrated Circuits Conference, 1997Co-Authors: T Masuda, Kazuhiro Ohhata, R. Takeyari, K Imai, Kana WashioAbstract:A wide dynamic range and high transimpedance Si bipolar preamplifier IC for 10-Gb/s optical fiber links is described. A limiting amplifier was introduced after the transimpedance stage to overcome the trade-off between high transimpedance and a wide dynamic range. A high transimpedance of 1 k/spl Omega/ and a wide Input current dynamic range up to 2 mApp were achieved with a bandwidth of 10.5 GHz, a low transimpedance fluctuation of 0.5 dB/spl Omega/, and an Equivalent Input Noise current density of 12 pA//spl radic/(Hz), using 35-GHz Si bipolar technology.
H Wernz - One of the best experts on this subject based on the ideXlab platform.
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low Noise high gain si bipolar preamplifiers for 10 gb s optical fiber links design and realization
IEEE Journal of Solid-state Circuits, 1996Co-Authors: M Neuhauser, H M Rein, H WernzAbstract:Design principles and circuit configurations of Si-bipolar transimpedance preamplifiers for 10 Gb/s optical-fiber links are discussed. The target specifications of the amplifier are near the limit achievable by the available technology. Therefore, the different amplifier stages had to be carefully optimized with respect to both flat magnitude and constant group delay of the total transimpedance up to about 7.5 GHz. Two different versions of preamplifiers were fabricated in an advanced production technology (f/sub T//spl ap/23 GHz). High transimpedance (710 /spl Omega/) and low Equivalent Input Noise current density (averaged: /spl ap/9 pA//spl radic/(Hz)) were achieved.
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design and realization of low Noise high gain si bipolar transimpedance preamplifiers for 10 gb s optical fiber links
Bipolar BiCMOS Circuits and Technology Meeting, 1994Co-Authors: M Neuhauser, H M Rein, H WernzAbstract:Design principles and circuit configurations of Si-bipolar preamplifiers for 10 Gb/s optical-fiber links are discussed. The ICs were fabricated in an advanced production technology. High transimpedance (710 /spl Omega/) and low Equivalent Input Noise current density (averaged: 9 pA//spl radic/(Hz)) were achieved.
M Neuhauser - One of the best experts on this subject based on the ideXlab platform.
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20 gbit s transimpedance preamplifier and modulator driver in sige bipolar technology
Electronics Letters, 1997Co-Authors: R Schmid, M Neuhauser, T F Meister, A Felder, W Bogner, M Rest, J Rupeter, H M ReinAbstract:A transimpedance preamplifier and a modulator driver used in a 20 Gbit/s fibre-optic TDM transmission system are presented. The ICs were fabricated in an advanced SiGe bipolar technology. The amplifier is noted for its high gain (58 dB/spl Omega/) and low Equivalent Input Noise current density (/spl sime/12 pA//spl radic/Hz) and the driver for its high output voltage swing (2.3 V single-ended, 4.6 V differential).
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low Noise high gain si bipolar preamplifiers for 10 gb s optical fiber links design and realization
IEEE Journal of Solid-state Circuits, 1996Co-Authors: M Neuhauser, H M Rein, H WernzAbstract:Design principles and circuit configurations of Si-bipolar transimpedance preamplifiers for 10 Gb/s optical-fiber links are discussed. The target specifications of the amplifier are near the limit achievable by the available technology. Therefore, the different amplifier stages had to be carefully optimized with respect to both flat magnitude and constant group delay of the total transimpedance up to about 7.5 GHz. Two different versions of preamplifiers were fabricated in an advanced production technology (f/sub T//spl ap/23 GHz). High transimpedance (710 /spl Omega/) and low Equivalent Input Noise current density (averaged: /spl ap/9 pA//spl radic/(Hz)) were achieved.
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design and realization of low Noise high gain si bipolar transimpedance preamplifiers for 10 gb s optical fiber links
Bipolar BiCMOS Circuits and Technology Meeting, 1994Co-Authors: M Neuhauser, H M Rein, H WernzAbstract:Design principles and circuit configurations of Si-bipolar preamplifiers for 10 Gb/s optical-fiber links are discussed. The ICs were fabricated in an advanced production technology. High transimpedance (710 /spl Omega/) and low Equivalent Input Noise current density (averaged: 9 pA//spl radic/(Hz)) were achieved.
Kazuhiro Ohhata - One of the best experts on this subject based on the ideXlab platform.
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A wide-dynamic-range, high-transimpedance Si bipolar preamplifier IC for 10-Gb/s optical fiber links
IEEE Journal of Solid-State Circuits, 1999Co-Authors: Kazuhiro Ohhata, R. Takeyari, K Imai, T Masuda, Kana WashioAbstract:A wide-dynamic-range, high-transimpedance preamplifier IC for 10-Gb/s optical fiber links was developed using a 0.3-/spl mu/m Si bipolar process. The preamplifier with a limiting amplifier enables a wide dynamic range from 16 /spl mu/App to 2.5 mApp and a high transimpedance of 1 k/spl Omega/ (2 k/spl Omega/ in the differential output mode). Moreover, careful circuit design achieves a transimpedance fluctuation of 0.5 dBR and an average Equivalent Input Noise current density of 12 pA//spl radic/Hz. This preamplifier IC has the highest transimpedance of any Si bipolar preamplifier for 10-Gb/s operation. Thus, the preamplifier is suitable for 10-Gb/s short-haul optical fiber links and can be used to provide a low-cost system.
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a wide dynamic range 1 k spl omega transimpedance si bipolar preamplifier ic for 10 gb s optical fiber links
Custom Integrated Circuits Conference, 1997Co-Authors: T Masuda, Kazuhiro Ohhata, R. Takeyari, K Imai, Kana WashioAbstract:A wide dynamic range and high transimpedance Si bipolar preamplifier IC for 10-Gb/s optical fiber links is described. A limiting amplifier was introduced after the transimpedance stage to overcome the trade-off between high transimpedance and a wide dynamic range. A high transimpedance of 1 k/spl Omega/ and a wide Input current dynamic range up to 2 mApp were achieved with a bandwidth of 10.5 GHz, a low transimpedance fluctuation of 0.5 dB/spl Omega/, and an Equivalent Input Noise current density of 12 pA//spl radic/(Hz), using 35-GHz Si bipolar technology.
Qing Zhong Liu - One of the best experts on this subject based on the ideXlab platform.
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unified analytical expressions for calculating resonant frequencies transimpedances and Equivalent Input Noise current densities of tuned receiver front ends
IEEE Transactions on Microwave Theory and Techniques, 1992Co-Authors: Qing Zhong LiuAbstract:Unified analytical expressions have been derived for calculating the resonant frequencies, transimpedance and Equivalent Input Noise current densities of the four most widely used tuned optical receiver front ends built with FETs and p-i-n diodes. A more accurate FET model has been used to improve the accuracy of the analysis. The Miller capacitance has been taken into account, and its impact on the performances of the tuned front ends has been demonstrated. The accuracy of the expressions has been verified by Touchstone simulations. The agreement between the calculated and simulated performances of the front ends is very good. The expressions can be used to investigate the performances of different tuned front ends in a very simple way and provide a good starting point for further computer optimizations of the front ends. >
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accurate prediction of transimpedances and Equivalent Input Noise current densities of tuned optical receiver front ends
European Microwave Conference, 1991Co-Authors: Qing Zhong LiuAbstract:Novel analytical expressions have been derived for calculating transimpedances and Equivalent Input Noise current densities of five tuned optical receiver front ends based on PIN diode and MESFETs or HEMTs. Miller's capacitance, which has been omitted in previous studies, has been taken into account. The accuracy of the expressions has been verified by using Touchstone simulator. The agreement between the calculated and simulated front end performances is very good.