High-Speed, Low-Power, 3V/5V,
Rail-to-Rail Single-Supply Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 2.7V to 6.0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C. See Note 14.)
PARAMETER
SYMBOL
V+ = 3V
Supply Current per Comparator
I
CC
V+ = 5V
CONDITIONS
MAX941
MAX942/MAX944
MAX941
MAX942/MAX944
MAX941
MAX942/MAX944
MAX94_C
MAX94_E/M
MIN
TYP
380
350
430
400
12
1.0
1.0
80
80
10
10
V
+
––
+ 0.4
––
2
V
+
––
––
2
V
+
––
––
2
V
+
––
- 0.4
––
2
MAX941/MAX942/MAX944
MAX
600
500
700
600
60
4.2
3.6
150
200
UNITS
µA
MAX941 only, shutdown mode (V+ = 3V)
Power Dissipation per
Comparator
Propagation Delay
Differential Propagation Delay
Propagation Delay Skew
Logic Input Voltage High
Logic Input Voltage Low
Logic Input Current
Data-to-Latch Setup Time
Latch-to-Data Hold Time
Latch Pulse Width
Latch Propagation Delay
Shutdown Time
Shutdown Disable Time
Note 1:
Note 2:
V
IH
V
IL
I
IL
, I
IH
t
S
t
H
t
LPW
t
LPD
PD
t
PD+
,
t
PD-
dt
PD
(Note 7)
(Note 8)
(Note 9)
(Note 10)
(Note 11)
(Note 11)
V
LOGIC
= 0V or V+ (Note 11)
(Note 12)
(Note 12)
MAX941 only
MAX941 only
(Note 13)
(Note 13)
mW
ns
ns
ns
V
V
µA
ns
ns
ns
ns
µs
µs
2
20
30
50
70
3
10
10
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
Note 12:
Note 13:
Note 14:
Inferred from the CMRR test. Note also that either or both inputs can be driven to the absolute maximum limit (0.3V
beyond either supply rail) without damage or false output inversion.
The input-referred trip points are the extremities of the differential input voltage required to make the comparator output
change state. The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis
zone. See Figure 1.
V
OS
is defined as the center of the input-referred hysteresis zone. See Figure 1.
The polarity of I
B
reverses direction as V
CM
approaches either supply rail. See
Typical Operating Characteristics
for more
detail.
Specified over the full common-mode range (V
CMR
).
Applies to the MAX941 only when in shutdown mode. Specification is for current flowing into or out of the output pin for
V
OUT
driven to any voltage from V+ to GND.
Typical power dissipation specified with V+ = 3V; maximum with V+ = 6V.
Parameter is guaranteed by design and specified with V
OD
= 5mV and C
LOAD
= 15pF in parallel with 400µA of sink or
source current. V
OS
is added to the overdrive voltage for low values of overdrive. See Figure 2.
Specified between any two channels in the MAX942/MAX944.
Specified as the difference between t
PD+
and t
PD-
for any one comparator.
–— –
— —
–——
—— –
Applies to the MAX941 only for both SHDN and LATCH pins.
–——
—— –
–——
—— –
Applies to the MAX941 only. Comparator is active with LATCH pin driven high and is latched with LATCH pin driven low.
See Figure 2.
–— –
— —
–— –
— —
Applicable to the MAX941 only. Comparator is active with SHDN pin driven high and is in shutdown with SHDN pin driven
–— –
— —
low. Shutdown disable time is the delay when SHDN is driven high to the time the output is valid.
The MAX941EUA and MAX942EUA are 100% production tested at T
A
= +25°C. Specifications over temperature are
guaranteed by design.
_______________________________________________________________________________________
3
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