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AD8132AR датащи(PDF) 1 Page - Analog Devices |
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AD8132AR датащи(HTML) 1 Page - Analog Devices |
1 / 20 page REV. 0 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 AD8132 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2000 Low-Cost, High-Speed Differential Amplifier FUNCTIONAL BLOCK DIAGRAM AD8132 + 1 2 3 4 NC = NO CONNECT –IN +IN VOCM NC V+ V– +OUT –OUT 8 7 6 5 FEATURES High Speed 350 MHz –3 dB Bandwidth 1200 V/ s Slew rate Resistor-Settable Gain Internal Common-Mode Feedback to Improve Gain and Phase Balance –68 dB @ 10 MHz Separate Input to Set the Common-Mode Output Voltage Low Distortion –99 dBc SFDR @ 5 MHz 800 Load Low Power 10.7 mA @ 5 V Power Supply Range +2.7 V to 5.5 V APPLICATIONS Low Power Differential ADC Driver Differential Gain and Differential Filtering Video Line Driver Differential In/Out Level-Shifting Single-Ended Input to Differential Output Driver Active Transformer GENERAL DESCRIPTION The AD8132 is a low-cost differential or single-ended input to differential output amplifier with resistor-settable gain. The AD8132 is a major advancement over op amps for driving differ- ential input ADCs or for driving signals over long lines. The AD8132 has a unique internal feedback feature that provides output gain and phase matching balanced to –68 dB at 10 MHz, suppressing harmonics, and reducing radiated EMI. Manufactured on ADI’s next generation of XFCB bipolar pro- cess, the AD8132 has a –3 dB bandwidth of 350 MHz and delivers a differential signal with –99 dBc SFDR at 5 MHz, despite its low cost. The AD8132 eliminates the need for a transformer with high-performance ADCs, preserving the low frequency and dc information. The common-mode level of the differential output is adjustable by applying a voltage on the VOCM pin, easily level-shifting the input signals for driving single supply ADCs. Fast overload recovery preserves sampling accuracy. The AD8132 can also be used as a differential driver for the transmission of high-speed signals over low-cost twisted pair or coaxial cables. The feedback network can be adjusted to boost the high-frequency components of the signal. The AD8132 can be used for either analog or digital video signals or for other high- speed data transmission. The AD8132 is capable of driving either cat3 or cat5 twisted pair or coaxial with minimal line attenu- ation. The AD8132 has considerable cost and performance improvements over discrete line driver solutions. Differential signal processing reduces the effects of ground noise which plagues ground referenced systems. The AD8132 can be used for differential signal processing (gain and filtering) through- out a signal chain, easily simplifying the conversion between differential and single-ended components. The AD8132 is available in both SOIC and µSOIC packages for operation over –40 °C to +85°C temperatures. FREQUENCY – MHz 6 1 3 0 –3 –6 –9 –12 10 100 1k VS = 5V G = 1 VO,dm = 2V p-p RL,dm = 499 Figure 1. Large Signal Frequency Response |
Аналогичный номер детали - AD8132AR |
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Аналогичное описание - AD8132AR |
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