ADCMP551BRQZ Analog Devices Inc, ADCMP551BRQZ Datasheet - Page 10

• Manufacturer Part Number: ADCMP551BRQZ
• Description: Single Supply Hi Speed PECL Comparator
• Manufacturer: Analog Devices Inc
• Type: with Latchr

Specifications of ADCMP551BRQZ

• Number Of Elements: 2
• Output Type: Complementary, Differential, LVPECL, Open-Emitter, PECL
• Voltage - Supply: 3.14 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 16-LSSOP (0.154", 3.91mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADCMP551BRQZ - BOARD EVALUATION ADCMP551BRQZ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADCMP551/ADCMP552/ADCMP553
TIMING INFORMATION
Figure 17 shows the compare and latch features of the ADCMP55x family. Table 4 describes the terms in the diagram.
Table 4. Timing Descriptions
Symbol
t
t
t
t
t
t
t
t
t
V
PDH
PDL
PLOH
PLOL
H
PL
S
R
F
OD
Timing
Input to Output High Delay
Input to Output Low Delay
Latch Enable to Output High Delay
Latch Enable to Output Low Delay
Minimum Hold Time
Minimum Latch Enable Pulse Width
Minimum Setup Time
Output Rise Time
Output Fall Time
Voltage Overdrive
INPUT VOLTAGE
LATCH ENABLE
LATCH ENABLE
DIFFERENTIAL
Q OUTPUT
Q OUTPUT
V
IN
Description
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
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
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
Propagation delay measured from the 50% point of the latch enable signal low-to-high
transition to the 50% point of an output high-to-low transition
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
Minimum time the latch enable signal must be high to acquire an input signal change
Minimum time before the negative transition of the latch enable signal that an input
signal change must be present to be acquired and held at the outputs
Amount of time required to transition from a low to a high output as measured at the
20% and 80% points
Amount of time required to transition from a high to a low output as measured at the
20% and 80% points
Difference between the differential input and reference input voltages
V
Figure 17. System Timing Diagram
t
S
OD
t
t
PDL
PDH
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t
H
t
R
t
F
t
PL
t
t
PLOH
PLOL
50%
V
50%
50%
REF
± V
OS