Datasheet AD8469 (Analog Devices)

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 VCC = 2.5 V to 5.5 V
Analog Devices, Inc., proprietary process. This comparator is
Input common-mode voltage: VEE − 0.2 V to VCC + 0.2 V
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 µA
Programmable hysteresis
typical supply current.
Power supply rejection better than −50 dB
A flexible power supply scheme allows the device to operate
−40°C to +125°C operation
from a single +2.5 V positive supply with a −0.2 V to +2.7 V
APPLICATIONS
input signal range up to a +5.5 V positive supply with a −0.2 V
High speed instrumentation
to +5.7 V input signal range.
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 −40°C to +125°C.
FUNCTIONAL BLOCK DIAGRAM VP NONINVERTING INPUT Q OUTPUT AD8469 TTL/CMOS Q OUTPUT VN INVERTING INPUT HYS INPUT
001
SDN INPUT
10490- Figure 1.
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Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Electrical Characteristics Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Applications Information Power/Ground Layout and Bypassing TTL-/CMOS-Compatible Output Stage Optimizing Performance Comparator Propagation Delay Dispersion Comparator Hysteresis Crossover Bias Point Minimum Input Slew Rate Requirement Typical Applications Circuits Outline Dimensions Ordering Guide Automotive Products