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AD8648 데이터시트(PDF) 1 Page - Analog Devices |
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AD8648 데이터시트(HTML) 1 Page - Analog Devices |
1 / 18 page 24 MHz Rail-to-Rail Amplifiers with Shutdown Option Data Sheet AD8646/AD8647/AD8648 Rev. F Document Feedback 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 ©2006–2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Offset voltage: 2.5 mV maximum Single-supply operation: 2.7 V to 5.5 V Low noise: 8 nV/√Hz Wide bandwidth: 24 MHz Slew rate: 11 V/μs Short-circuit output current: 120 mA Qualified for automotive applications No phase reversal Low input bias current: 1 pA Low supply current per amplifier: 2 mA maximum Unity gain stable APPLICATIONS Battery-powered instruments Multipole filters ADC front ends Sensors Barcode scanners ASIC input or output amplifiers Audio amplifiers Photodiode amplifiers Datapath/mux/switch control PIN CONFIGURATIONS OUTA 1 –INA 2 +INA 3 V– 4 V+ 8 OUTB 7 –INB 6 +INB 5 AD8646 TOP VIEW (Not to Scale) Figure 1. 8-Lead SOIC and MSOP OUTA 1 –INA 2 +INA 3 V– 4 SDA 5 V+ 10 OUTB 9 –INB 8 +INB 7 SDB 6 AD8647 TOP VIEW (Not to Scale) Figure 2. 10-Lead MSOP 1 2 3 4 5 6 7 AD8648 –INA +INA V+ OUTB –INB +INB OUTA 14 13 12 11 10 9 8 –IND +IND V– OUTC –INC +INC OUTD TOP VIEW (Not to Scale) 1 2 3 4 5 6 7 AD8648 14 13 12 11 10 9 8 TOP VIEW (Not to Scale) Figure 3. 14-Lead SOIC and TSSOP GENERAL DESCRIPTION The AD8646 and the AD8647 are the dual, and the AD8648 is the quad, rail-to-rail, input and output, single-supply amplifiers featuring low offset voltage, wide signal bandwidth, low input voltage, and low current noise. The AD8647 also has a low power shutdown function. The combination of 24 MHz bandwidth, low offset, low noise, and very low input bias current makes these amplifiers useful in a wide variety of applications. Filters, integrators, photodiode amplifiers, and high impedance sensors all benefit from the combination of performance features. AC applications benefit from the wide bandwidth and low distortion. The AD8646/ AD8647/AD8648 offer high output drive capability, which is excellent for audio line drivers and other low impedance applications. The AD8646 and AD8648 are available for automotive applications (see the Ordering Guide). Applications include portable and low powered instrumenta- tion, audio amplification for portable devices, portable phone headsets, barcode scanners, and multipole filters. The ability to swing rail to rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in single-supply systems. |
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