Datasheet AD8465 (Analog Devices) - 5

link to page 5 link to page 5 link to page 5
Data Sheet AD8465 TIMING INFORMATION
Figure 2 il ustrates the AD8465 latch timing relationships. Table 2 provides definitions of the terms shown in Figure 2.
1.1V LATCH ENABLE tS tPL tH DIFFERENTIAL VIN VN ± VOS INPUT VOLTAGE VOD tPDL tPLOH Q OUTPUT 50% tF tPDH 50% Q OUTPUT tPLOL
002
tR
07958- Figure 2. System Timing Diagram
Table 2. Timing Descriptions Symbol Timing Description
tPDH Input-to-Output High Delay Propagation delay measured from the time the input signal crosses the reference (± the input offset voltage) to the 50% point of an output low-to-high transition. tPDL Input-to-Output Low Delay Propagation delay measured from the time the input signal crosses the reference (± the input offset voltage) to the 50% point of an output high-to-low transition. tPLOH Latch Enable-to-Output High Delay Propagation delay measured from the 50% point of the latch enable signal low-to-high transition to the 50% point of an output low-to-high transition. tPLOL Latch Enable-to-Output Low Delay Propagation delay measured from the 50% point of the latch enable signal high-to-low transition to the 50% point of an output high-to-low transition. tH Minimum Hold Time Minimum time after the negative transition of the latch enable signal that the input signal must remain unchanged to be acquired and held at the outputs. tPL Minimum Latch Enable Pulse Width Minimum time that the latch enable signal must be high to acquire an input signal change. tS Minimum Setup Time Minimum time before the negative transition of the latch enable signal occurs that an input signal change must be present to be acquired and held at the outputs. tR Output Rise Time Amount of time required to transition from a low-to-high output as measured at the 20% and 80% points. tF Output Fall Time Amount of time required to transition from a high-to-low output as measured at the 20% and 80% points. VOD Voltage Overdrive Difference between the input voltages, VP and VN. Rev. B | Page 5 of 14 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS TIMING INFORMATION ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATION INFORMATION POWER/GROUND LAYOUT AND BYPASSING LVDS-COMPATIBLE OUTPUT STAGE USING/DISABLING THE LATCH FEATURE OPTIMIZING PERFORMANCE COMPARATOR PROPAGATION DELAY DISPERSION COMPARATOR HYSTERESIS CROSSOVER BIAS POINTS MINIMUM INPUT SLEW RATE REQUIREMENT TYPICAL APPLICATION CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS