Datasheet AD8468 (Analog Devices)

Rail-to-Rail, Fast, Low Power 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator Data Sheet AD8468 FEATURES FUNCTIONAL BLOCK DIAGRAM 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 NONINVERTING + INPUT 40 ns propagation delay AD8468 Q OUTPUT Low power: 2 mW at 2.5 V Shutdown pin INVERTING – INPUT Power supply rejection > 60 dB −40°C to +125°C operation
001
Qualified for automotive applications SDN
08853-
APPLICATIONS
Figure 1.
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 GENERAL DESCRIPTION
The AD8468 is a fast comparator fabricated on XFCB2.0, an The TTL-/CMOS-compatible output stage is designed to drive Analog Devices, Inc., proprietary process. This comparator is up to 15 pF with full rated timing specifications and to degrade exceptionally versatile and easy to use. Features include an input in a graceful and linear fashion as additional capacitance is range from −0.2 V to VCC + 0.2 V, low noise, TTL-/CMOS- added. The input stage of the comparator offers robust protec- compatible output drivers, and shutdown inputs. The device tion against large input overdrive, and the outputs do not phase offers 40 ns propagation delays driving a 15 pF load with 10 mV reverse when the valid input signal range is exceeded. overdrive on 500 µA typical supply current. The AD8468 is available in a tiny 6-lead SC70 package with a A flexible power supply scheme allows the device to operate single-ended output and a shutdown pin. 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.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION 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 PROPAGATIONDELAY DISPERSION CROSSOVER BIAS POINT MINIMUM INPUT SLEW RATE REQUIREMENT TYPICAL APPLICATION CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS