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ADA4817-1 Datasheet(PDF) 1 Page - Analog Devices |
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ADA4817-1 Datasheet(HTML) 1 Page - Analog Devices |
1 / 24 page Low Noise, 1 GHz FastFET Op Amps ADA4817-1/ADA4817-2 Rev. 0 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 ©2008 Analog Devices, Inc. All rights reserved. FEATURES High speed −3 dB bandwidth (G = 1, RL = 100 Ω): 1050 MHz Slew rate: 870 V/μs 0.1% settling time: 9 ns Low input bias current: 2 pA Low input capacitance Common-mode capacitance: 1.5 pF Differential-mode capacitance: 0.1 pF Low noise 4 nV/√Hz @ 100 kHz 2.5 fA/√Hz @ 100 kHz Low distortion −90 dBc @ 10 MHz (G = 1, RL = 1 kΩ) Offset voltage: 2 mV maximum High output current: 70 mA Supply current per amplifier: 19 mA Power-down supply current per amplifier: 1 mA APPLICATIONS Photodiode amplifiers Data acquisition front ends Instrumentation Filters ADC drivers CCD output buffers CONNECTION DIAGRAMS NC = NO CONNECT 1 PD 2 FB 3 –IN 4 +IN 7OUT 8+VS 6NC 5–VS ADA4817-1 TOP VIEW (Not to Scale) Figure 1. 8-Lead ADA4817-1 LFCSP (CP-8-2) 1 –IN1 2 +IN1 3 NC 4 –VS2 11 NC 12 –VS1 10 +IN2 9–IN2 ADA4817-2 TOP VIEW (Not to Scale) NC = NO CONNECT Figure 2. 16-Lead ADA4817-2 LFSCP (CP-16-4) GENERAL DESCRIPTION The ADA4817-1 (single) and ADA4817-2 (dual) FastFET™ amplifiers are unity-gain stable, ultrahigh speed voltage feedback amplifiers with FET inputs. These amplifiers are developed in the Analog Devices, Inc., proprietary eXtra Fast Complementary Bipolar (XFCB) process, which allows the amplifiers to achieve ultralow noise (4 nV/√Hz; 2.5 fA/√Hz) as well as very high input impedances. With 1.5 pF of input capacitance, low noise (4 nV/√Hz), low offset voltage (2 mV maximum), and 1050 MHz −3 dB bandwidth, the ADA4817-1/ADA4871-2 are ideal for data acquisition front ends as well as wideband transimpedance applications, such as photodiode preamps. With a wide supply voltage range from 5 V to 10 V, the ability to operate on either single or dual supplies, the ADA4817-1/ ADA4817-2 are designed to work in a variety of applications including active filtering and ADC driving. The ADA4817-1 is available in a 3 mm × 3 mm 8-lead LFCSP and the ADA4817-2 is available in a 4 mm × 4 mm 16-lead LFSCP. Both packages feature a low distortion pinout, which improves second harmonic distortion and simplifies the layout of the circuit board. In addition, both packages feature an exposed paddle that provides a low thermal resistance path to the printed circuit board (PCB). This enables more efficient heat transfer and increases reliability. Both products are rated to work over the extended industrial temperature range (−40°C to +105°C). |
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