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AD8038AR bảng dữ liệu(PDF) 1 Page - Analog Devices |
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AD8038AR bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 17 page Low Power, 350 MHz Voltage Feedback Amplifiers AD8038/AD8039 Rev. G Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2002–2009 Analog Devices, Inc. All rights reserved. FEATURES Low power: 1 mA supply current/amp High speed 350 MHz, −3 dB bandwidth (G = +1) 425 V/μs slew rate Low cost Low noise 8 nV/√Hz @ 100 kHz 600 fA/√Hz @ 100 kHz Low input bias current: 750 nA maximum Low distortion −90 dB SFDR @ 1 MHz −65 dB SFDR @ 5 MHz Wide supply range: 3 V to 12 V Small packaging: 8-lead SOT-23, 5-lead SC70, and 8-lead SOIC APPLICATIONS Battery-powered instrumentation Filters A/D drivers Level shifting Buffering Photo multipliers FUNCTIONAL BLOCK DIAGRAM NC 1 –IN 2 +IN 3 –VS 4 DISABLE 8 +VS 7 VOUT 6 NC 5 NC = NO CONNECT AD8038 Figure 1. 8-lead SOIC (R) AD8038 VOUT 1 +IN 3 –VS 2 +VS 5 –IN 4 Figure 2. 5-Lead SC70 (KS) NC = NO CONNECT VOUT1 1 –IN1 2 +IN1 3 –VS 4 +VS 8 VOUT2 7 –IN2 6 +IN2 5 AD8039 Figure 3. 8-Lead SOIC (R) and 8-Lead SOT-23 (RJ) GENERAL DESCRIPTION The AD8038 (single) and AD8039 (dual) amplifiers are high speed (350 MHz) voltage feedback amplifiers with an exceptionally low quiescent current of 1.0 mA/amplifier typical (1.5 mA maximum). The AD8038 single amplifier in the 8-lead SOIC package has a disable feature. Despite being low power and low cost, the amplifier provides excellent overall performance. Additionally, it offers a high slew rate of 425 V/μs and a low input offset voltage of 3 mV maximum. The Analog Devices, Inc., proprietary XFCB process allows low noise operation (8 nV/√Hz and 600 fA/√Hz) at extremely low quiescent currents. Given a wide supply voltage range (3 V to 12 V), wide bandwidth, and small packaging, the AD8038 and AD8039 amplifiers are designed to work in a variety of applications where power and space are at a premium. The AD8038 and AD8039 amplifiers have a wide input common- mode range of 1 V from either rail and swing to within 1 V of each rail on the output. These amplifiers are optimized for driving capacitive loads up to 15 pF. If driving larger capacitive loads, a small series resistor is needed to avoid excessive peaking or overshoot. The AD8039 amplifier is available in a 8-lead SOT-23 package, and the single AD8038 is available in both an 8-lead SOIC and a 5-lead SC70 package. These amplifiers are rated to work over the industrial temperature range of −40°C to +85°C. –6 1000 0.1 1 10 100 –3 0 3 6 9 12 15 18 21 24 FREQUENCY (MHz) G = +5 G = +2 G = +1 G = +10 Figure 4. Small Signal Frequency Response for Various Gains, VOUT = 500 mV p-p, VS = ±5 V |
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