Datasheet

MAX912/MAX913
Single/Dual, Ultra-Fast, Low-Power
Precision TTL Comparators
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Note 1: All specifications are 100% tested at T
A
= +25°C, unless otherwise noted. Specification limits over temperature (T
A
= T
MIN
to T
MAX
) are guaranteed by design.
Note 2: Input Offset Voltage (V
OS
) is defined as the average of the two input offset voltages, measured by forcing first one output,
then the other to 1.4V. Input Offset Current (I
OS
) is defined the same way.
Note 3: Supply currents are measured with V
Q
driven to both V
OH
and V
OL
(not 1.4V).
Note 4: Propagation Delay (t
PD
) and Differential Propagation Delay (∆t
PD
) cannot be measured in automatic handling equipment
with low input overdrive values. Characterization and correlation tests have shown that t
PD
and ∆t
PD
limits can be guaran-
teed by design. Electrical Characteristic DC tests are performed to guarantee that all internal bias conditions are correct.
For low overdrive conditions, V
OS
is added to overdrive. Differential Propagation Delay is defined as ∆t
PD
= t
PD+
- t
PD-
.
Note 5: Input latch setup time (t
SU
) is the interval in which the input signal must be stable prior to asserting the latch signal. The hold
time (t
H
) is the interval after the latch is asserted in which the input signal must be stable. These parameters are guaranteed
by design.
Note 6: Latch Propagation Delay (t
LPD
) is the delay time for the output to respond when the latch-enable pin is deasserted (see
Timing Diagram).
ELECTRICAL CHARACTERISTICS (continued)
V+ = +5V, V- = -5V, V
Q
= 1.4V, V
LE
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
T
A
= +25°C1014
∆V
IN
= 100mV,
V
OD
= 5mV
T
A
= T
MIN TO
T
MAX
16
T
A
= +25°C912
Propagation Delay (Note 4) t
PD+
, t
PD-
∆V
IN
= 100mV,
V
OD
= 20mV
T
A
= T
MIN TO
T
MAX
15
ns
MAX913 2 4
Differential Propagation Delay
(Note 4)
∆t
PD
∆V
IN
= 100mV,
V
OD
= 5mV
T
A
= +25°C
MAX912 3 5
ns
Channel-to-Channel Propagation
Delay (Note 4)
∆V
IN
= 100mV,
V
OD
= 5mV
(MAX912 only)
T
A
= +25°C 500 ps
Latch Setup Time (Note 5) t
SU
20 ns
Latch Hold Time (Note 5) t
H
52 ns
Latch Propagation Delay (Note 6) t
LPD
7ns