ADCMP600/ADCMP601/ADCMP602
TIMING INFORMATION
Figure 2 illustrates the ADCMP600/ADCMP601/ADCMP602 latch timing relationships. Table 2 provides definitions of the terms shown
in Figure 2.
1.1V
LATCH ENABLE
tS
tPL
tH
V
IN
DIFFERENTIAL
INPUT VOLTAGE
V
± V
OS
N
V
OD
tPDL
tPLOH
Q OUTPUT
50%
tF
Figure 2. System Timing Diagram
Table 2. Timing Descriptions
Symbol Timing
Description
tPDH
tPDL
tPLOH
tPLOL
tH
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.
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.
Input to output low delay
Latch enable to output high delay
Latch enable to output low delay
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
tS
Minimum latch enable pulse width
Minimum setup time
Minimum time that the latch enable signal must be high to acquire an input signal change.
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
Output fall time
Voltage overdrive
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.
tF
VOD
Difference between the input voltages VA and VB.
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