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ADA4841-1YRJZ-R2 Datasheet(PDF) 1 Page - Analog Devices |
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ADA4841-1YRJZ-R2 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifiers Data Sheet ADA4841-1/ADA4841-2 Rev. G Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©2005–2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Low power: 1.1 mA/amp Low wideband noise 2.1 nV/√Hz 1.4 pA/√Hz Low 1/f noise 7 nV/√Hz @ 10 Hz 13 pA/√Hz @ 10 Hz Low distortion: −105 dBc @ 100 kHz, VO = 2 V p-p High speed 80 MHz, −3 dB bandwidth (G = +1) 12 V/µs slew rate 175 ns settling time to 0.1% Low offset voltage: 0.3 mV maximum Rail-to-rail output Power down Wide supply range: 2.7 V to 12 V APPLICATIONS Low power, low noise signal processing Battery-powered instrumentation 16-bit PulSAR® ADC drivers CONNECTION DIAGRAMS VOUT 3 4 6 5 2 7 1 8 –VS –IN +IN +VS NC NC POWER DOWN ADA4841-1 TOP VIEW (Not to Scale) Figure 1. 8-Lead SOIC (R) VOUT 1 –VS 2 +IN 3 +VS 6 POWER DOWN 5 –IN 4 ADA4841-1 Figure 2. 6-Lead SOT-23 (RJ) OUT1 1 –IN1 2 +IN1 3 –VS 4 +VS 8 OUT2 7 –IN2 6 +IN2 5 ADA4841-2 TOP VIEW (Not to Scale) NOTES 1. FOR 8-LEAD LFCSP_WD, CONNECT EXPOSED PADDLE TO GND. Figure 3. 8-Lead MSOP (RM), 8-Lead SOIC_N (R), and 8-Lead LFCSP_WD (CP) GENERAL DESCRIPTION The ADA4841-1/ADA4841-2 are unity gain stable, low noise and distortion, rail-to-rail output amplifiers that have a quiescent current of 1.5 mA maximum. In spite of their low power consumption, these amplifiers offer low wideband voltage noise performance of 2.1 nV/√Hz and 1.4 pA/√Hz current noise, along with excellent spurious-free dynamic range (SFDR) of −105 dBc at 100 kHz. To maintain a low noise environment at lower frequencies, the amplifiers have low 1/f noise of 7 nV/√Hz and 13 pA/√Hz at 10 Hz. The ADA4841-1/ADA4841-2 output can swing to less than 50 mV of either rail. The input common-mode voltage range extends down to the negative supply. The ADA4841-1/ ADA4841-2 can drive up to 10 pF of capacitive load with minimal peaking. The ADA4841-1/ADA4841-2 provide the performance required to efficiently support emerging 16-bit to 18-bit ADCs and are ideal for portable instrumentation, high channel count, industrial measurement, and medical applications. The ADA4841-1/ ADA4841-2 are ideally suited to drive the AD7685/AD7686, 16-bit PulSAR ADCs. The ADA4841-1/ADA4841-2 packages feature RoHS compliant lead finishes. The amplifiers are rated to work over the industrial temperature range (−40°C to +125°C). –30 –120 0.01 1 FREQUENCY (MHz) 0.1 2V p-p THIRD –40 –50 –60 –70 –80 –90 –100 –110 VS = ±5V G = +1 2V p-p SECOND Figure 4. Harmonic Distortion |
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