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AD8468WBKSZ-R7 Datasheet(PDF) 1 Page - Analog Devices |
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AD8468WBKSZ-R7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page Rail-to-Rail, Fast, Low Power 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator AD8468 FEATURES Fully specified rail to rail at VCC = 2.5 V to 5.5 V Input common-mode voltage from −0.2 V to VCC + 0.2 V Low glitch CMOS-/TTL-compatible output stage 40 ns propagation delay Low power: 2 mW at 2.5 V Shutdown pin Power supply rejection > 60 dB −40°C to +125°C operation Qualified for automotive applications APPLICATIONS Automotive 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 FUNCTIONAL BLOCK DIAGRAM AD8468 NONINVERTING INPUT INVERTING INPUT Q OUTPUT + – SDN Figure 1. GENERAL DESCRIPTION The AD8468 is a fast comparator fabricated on XFCB2.0, an Analog Devices, Inc., proprietary process. This comparator is exceptionally versatile and easy to use. Features include an input range from −0.2 V to VCC + 0.2 V, low noise, TTL-/CMOS- compatible output drivers, and shutdown inputs. The device offers 40 ns propagation delays 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 with a single 2.5 V positive supply with a −0.2 V to + 2.7 V input signal range and 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 protec- tion against large input overdrive, and the outputs do not phase reverse when the valid input signal range is exceeded. The AD8468 is available in a tiny 6-lead SC70 package with a single-ended output and a shutdown pin. 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 ©2010 Analog Devices, Inc. All rights reserved. |
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