Fast, Rail-to-Rail, Low Power, 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator Data Sheet AD8469 FEATURES GENERAL DESCRIPTION Qualified for automotive applications The AD8469 is a fast comparator fabricated on XFCB2, an Fully specified rail-to-rail at V = 2.5 V to 5.5 V CC Analog Devices, Inc., proprietary process. This comparator is Input common-mode voltage: V 0.2 V to V + 0.2 V EE CC exceptionally versatile and easy to use. Features include an input Low glitch TTL-/CMOS-compatible output stage range from VEE 0.2 V to VCC + 0.2 V, low noise, TTL- and 40 ns propagation delay CMOS-compatible output drivers, adjustable hysteresis control, Low power: 1.4 mW at 2.5 V and a shutdown input. The device offers a 40 ns propagation Shutdown pin delay driving a 15 pF load with 10 mV overdrive on 500 A Programmable hysteresis typical supply current. Power supply rejection better than 50 dB A flexible power supply scheme allows the device to operate 40C to +125C operation 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 APPLICATIONS to +5.7 V input signal range. High speed instrumentation Clock and data signal restoration The TTL-/CMOS-compatible output stage is designed to drive Logic level shifting or translation up to 15 pF with full rated timing specifications and to degrade High speed line receivers in a graceful and linear fashion as additional capacitance is added. Threshold detection The input stage of the comparator offers robust protection against Peak and zero-crossing detectors large input overdrive, and the outputs do not phase reverse when High speed trigger circuitry the valid input signal range is exceeded. Pulse-width modulators The AD8469 is available in an 8-lead MSOP package and features Current/voltage controlled oscillators a shutdown pin and hysteresis control. It is fully specified over an operating temperature range of 40C to +125C. FUNCTIONAL BLOCK DIAGRAM V NONINVERTING P INPUT Q OUTPUT AD8469 TTL/CMOS Q OUTPUT V INVERTING N INPUT HYS INPUT S INPUT DN Figure 1. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 10490-001AD8469 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Applications Information .................................................................8 Applications ....................................................................................... 1 Power/Ground Layout and Bypassing ........................................8 General Description ......................................................................... 1 TTL-/CMOS-Compatible Output Stage ....................................8 Functional Block Diagram .............................................................. 1 Optimizing Performance ..............................................................8 Revision History ............................................................................... 2 Comparator Propagation Delay Dispersion ................................8 Specifications ..................................................................................... 3 Comparator Hysteresis .................................................................9 Electrical Characteristics ............................................................. 3 Crossover Bias Point .....................................................................9 Absolute Maximum Ratings ............................................................ 4 Minimum Input Slew Rate Requirement ................................ 10 Thermal Resistance ...................................................................... 4 Typical Applications Circuits ........................................................ 11 ESD Caution .................................................................................. 4 Outline Dimensions ....................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 Ordering Guide .......................................................................... 12 Typical Performance Characteristics ............................................. 6 Automotive Products ................................................................. 12 REVISION HISTORY 1/12Revision 0: Initial Version Rev. 0 Page 2 of 12