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AD8675ARZ-REEL Datasheet(PDF) 1 Page - Analog Devices |
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AD8675ARZ-REEL Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page 36 V Precision, 2.8 nV/√Hz Rail-to-Rail Output Op Amp AD8675 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 © 2005 Analog Devices, Inc. All rights reserved. FEATURES Very low voltage noise 2.8 nV/√Hz Rail-to-rail output swing Low input bias current: 2 nA maximum Very low offset voltage: 75 μV maximum Low input offset drift: 0.6 μV/°C maximum Very high gain: 120 dB Wide bandwidth: 10 MHz typical ±5 V to ±18 V operation APPLICATIONS Precision instrumentation PLL filters Laser diode control loops Strain gage amplifiers Medical instrumentation Thermocouple amplifiers PIN CONFIGURATIONS NULL 1 –IN 2 +IN 3 V– 4 NULL 8 V+ 7 OUT 6 NC 5 NC = NO CONNECT AD8675 TOP VIEW (Not to Scale) Figure 1. 8-Lead SOIC_N (R-8) NULL 1 –IN 2 +IN 3 V– 4 NULL 8 V+ 7 OUT 6 NC 5 NC = NO CONNECT AD8675 TOP VIEW (Not to Scale) Figure 2. 8-Lead MSOP (RM-8) GENERAL DESCRIPTION The AD8675 precision operational amplifier has ultralow offset, drift, and voltage noise combined with very low input bias currents over the full operating temperature range. The AD8675 is a precision, wide bandwidth op amp featuring rail-to-rail output swings and very low noise. Operation is fully specified from ±5 V to ±15 V. The AD8675 features a rail-to-rail output like that of the OP184, but with wide bandwidth and even lower voltage noise, com- bined with the precision and low power consumption like that of the industry-standard OP07 amplifier. Unlike other low noise, rail-to-rail op amps, the AD8675 has very low input bias current and low input current noise. With typical offset voltage of only 10 μV, offset drift of 0.2 μV/°C, and noise of only 0.10 μV p-p (0.1 Hz to 10 Hz), the AD8675 is perfectly suited for applications where large error sources cannot be tolerated. For applications with even lower offset tolerances, the proprietary nulling capability allows a combination of both device and system offset errors up to 3.5 mV (referred to the input) to be compensated externally. Unlike previous circuits, the AD8675 accommodates this adjustment without adversely affecting the offset drift, CMRR, and PSRR of the amplifier. Precision instrumentation, PLL, and other precision filter circuits, position and pressure sensors, medical instru- mentation, and strain gage amplifiers benefit greatly from the very low noise, low input bias current, and wide bandwidth. Many systems can take advantage of the low noise, dc precision, and rail-to-rail output swing provided by the AD8675 to maximize SNR and dynamic range. The smaller packages and low power consumption afforded by the AD8675 allow maximum channel density or minimum board size for space-critical equipment. The AD8675 is specified for the extended industrial temperature range (−40°C to +125°C). The AD8675 amplifier is available in the tiny MSOP-8, and the popular 8-lead, narrow SOIC, lead- free packages. MSOP packaged devices are only available in tape and reel format. |
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