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AD8469WBRMZ-RL Datasheet(PDF) 1 Page - Analog Devices |
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AD8469WBRMZ-RL Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page Fast, Rail-to-Rail, Low Power, 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator Data Sheet AD8469 Rev. 0 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 www.analog.com Fax: 781.461.3113 ©2012 Analog Devices, Inc. All rights reserved. FEATURES Qualified for automotive applications Fully specified rail-to-rail at VCC = 2.5 V to 5.5 V Input common-mode voltage: VEE − 0.2 V to VCC + 0.2 V Low glitch TTL-/CMOS-compatible output stage 40 ns propagation delay Low power: 1.4 mW at 2.5 V Shutdown pin Programmable hysteresis Power supply rejection better than −50 dB −40°C to +125°C operation APPLICATIONS High speed instrumentation Clock and data signal restoration Logic level shifting or translation High speed line receivers Threshold detection Peak and zero-crossing detectors High speed trigger circuitry Pulse-width modulators Current/voltage controlled oscillators GENERAL DESCRIPTION The AD8469 is a fast comparator fabricated on XFCB2, an Analog Devices, Inc., proprietary process. This comparator is exceptionally versatile and easy to use. Features include an input range from VEE − 0.2 V to VCC + 0.2 V, low noise, TTL- and CMOS-compatible output drivers, adjustable hysteresis control, and a shutdown input. The device offers a 40 ns propagation delay driving a 15 pF load with 10 mV overdrive on 500 µA typical supply current. A flexible power supply scheme allows the device to operate from a single +2.5 V positive supply with a −0.2 V to +2.7 V input signal range up to a +5.5 V positive supply with a −0.2 V to +5.7 V input signal range. The TTL-/CMOS-compatible output stage is designed to drive up to 15 pF with full rated timing specifications and to degrade in a graceful and linear fashion as additional capacitance is added. The input stage of the comparator offers robust protection against large input overdrive, and the outputs do not phase reverse when the valid input signal range is exceeded. The AD8469 is available in an 8-lead MSOP package and features a shutdown pin and hysteresis control. It is fully specified over an operating temperature range of −40°C to +125°C. FUNCTIONAL BLOCK DIAGRAM VP NONINVERTING INPUT VN INVERTING INPUT SDN INPUT Q OUTPUT Q OUTPUT HYS INPUT AD8469 TTL/CMOS Figure 1. |
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