ADCMP606/ADCMP607
TIMING INFORMATION
Figure 2 illustrates the ADCMP606/ADCMP607 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%
50%
tF
tPDH
Q OUTPUT
tPLOL
tR
Figure 2. System Timing Diagram
Table 2. Timing Descriptions
Symbol Timing
Description
tF
Output fall time
Amount of time required to transition from a high to a low output as measured at the 20%
and 80% points.
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.
tPDH
tPDL
tPL
Input to output high delay
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 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.
Minimum time that the latch enable signal must be high to acquire an input signal
change.
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.
Amount of time required to transition from a low to a high output as measured at the 20%
and 80% points.
Minimum latch enable pulse width
Latch enable to output high delay
Latch enable to output low delay
Output rise time
tPLOH
tPLOL
tR
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.
VOD
Voltage overdrive
Difference between the input voltages VA and VB.
Rev. A | Page 5 of 16