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AD8502 Datasheet(PDF) 1 Page - Analog Devices |
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AD8502 Datasheet(HTML) 1 Page - Analog Devices |
1 / 6 page 1μ Micropower Precision CMOS Operational Amplifier Preliminary Technical Data AD8502/AD8504 Rev. PrB 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 ©2006 Analog Devices, Inc. All rights reserved. FEATURES Supply current: 1 μA maximum/amplifier Offset voltage: 3 mV maximum Single-supply or dual-supply operation Rail-to-rail input and output No phase reversal Unity gain stable APPLICATIONS Portable equipment Remote sensors Low power filters Threshold detectors Current sensing GENERAL DESCRIPTION The AD850x family are low power, precision CMOS op amps featuring a maximum supply current of 1 μA. The AD850x family has a maximum offset voltage of 3 mV and a typical input bias current of 1 pA, and it operates rail-to-rail on both the input and output. The AD850x family can operate from a single- supply voltage of +1.8 V to +5.5 V or a dual-supply voltage of ±0.9 V to ±2.75 V. With its low power consumption, low input bias current, and rail-to-rail input and output, the AD850x family is ideally suited for a variety of battery-powered portable applications. Potential applications include bedside monitors, pulse monitors, glucose meters, smoke and fire detectors, vibration monitors, and backup battery sensors. PIN CONFIGURATIONS OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 AD8502 TOP VIEW (Not to Scale) Figure 1. 8-Lead SOT23 1 2 3 4 5 6 7 AD8504 IN A +IN A V+ OUT B –IN B +IN B OUT A 14 13 12 11 10 9 8 –IN D +IN D V– OUT C –IN C +IN C OUT D TOP VIEW (Not to Scale) Figure 2. 14-Lead TSSOP (RU-14) The ability to swing rail-to-rail at both the input and output helps maximize dynamic range and signal-to-noise ratio in systems that operate at very low voltages. The low offset voltage allows the AD850x family to be used in systems with high gain without having excessively large output offset errors, and it provides high accuracy without the need for system calibration. The AD850x family is fully specified over the industrial temperature range (−40°C to +85°C) and is operational over the extended industrial temperature range (−40°C to +125°C). The AD8502 is available in a 8-lead, SOT23 surface-mount package. The AD8504 is available in 14-lead TSSOP surface-mount package. |
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