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AD8015 Scheda tecnica(PDF) 1 Page - Analog Devices |
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AD8015 Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 8 page FUNCTIONAL BLOCK DIAGRAM 10k Ω 5 6 7 8 4 3 2 1 AD8015 50 Ω +1 NC IIN NC VBYP –VS –OUTPUT +OUTPUT +VS G = 3 G = 30 NC = NO CONNECT 50 Ω +1 – + +VS 1.7V 25.0E+3 20.0E+3 000.E+0 10.0E+6 100.0E+6 1.0E+9 15.0E+3 10.0E+3 5.0E+3 FREQUENCY – Hz DIFFERENTIAL SINGLE-ENDED Figure 1. Differential/Single-Ended Transimpedance vs. Frequency 5.0 4.5 4.0 3.5 3.0 2.5 2.0 100.0E+6 20.0E+6 000.0E+0 80.0E+6 60.0E+6 40.0E+6 FREQUENCY – Hz 3.0pF 2.0pF 1.5pF 1.0pF 0.5pF Figure 2. Noise vs. Frequency (SO-8 Package with Added Capacitance) REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a Wideband/Differential Output Transimpedance Amplifier AD8015 FEATURES Low Cost, Wide Bandwidth, Low Noise Bandwidth: 240 MHz Pulse Width Modulation: 500 ps Rise Time/Fall Time: 1.5 ns Input Current Noise: 3.0 pA/ √Hz @ 100 MHz Total Input RMS Noise: 26.5 nA to 100 MHz Wide Dynamic Range Optical Sensitivity: –36 dBm @ 155.52 Mbps Peak Input Current: 350 A Differential Outputs Low Power: 5 V @ 25 mA Wide Operating Temperature Range: –40 C to +85 C APPLICATIONS Fiber Optic Receivers: SONET/SDH, FDDI, Fibre Channel Stable Operation with High Capacitance Detectors Low Noise Preamplifiers Single-Ended to Differential Conversion I-to-V Converters PRODUCT DESCRIPTION The AD8015 is a wide bandwidth, single supply transimpedance amplifier optimized for use in a fiber optic receiver circuit. It is a complete, single chip solution for converting photodiode current into a differential voltage output. The 240 MHz bandwidth enables AD8015 application in FDDI receivers and SONET/SDH receivers with data rates up to 155 Mbps. This high bandwidth supports data rates beyond 300 Mbps. The differential outputs drive ECL directly, or can drive a comparator/ fiber optic post amplifier. In addition to fiber optic applications, this low cost, silicon al- ternative to GaAs-based transimpedance amplifiers is ideal for systems requiring a wide dynamic range preamplifier or single- ended to differential conversion. The IC can be used with a standard ECL power supply (–5.2 V) or a PECL (+5 V) power supply; the common mode at the output is ECL compatible. The AD8015 is available in die form, or in an 8-pin SOIC package. © Analog Devices, Inc., 1996 One Technology Way, P.O. Box 9106, Norwood, 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 |
Codice articolo simile - AD8015_15 |
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Descrizione simile - AD8015_15 |
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