Owner's manual
MAX976/MAX978/MAX998
Single/Dual/Quad, SOT23, Single-Supply,
High-Speed, Low-Power Comparators
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.7V to +5.5V, V
CM
= 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Note 1: The MAX998EUT specifications are 100% tested at T
A
= +25°C. Limits over the extended temperature range are guaran-
teed by design, not production tested.
Note 2: Inferred from CMRR test. Either input can be driven to the absolute maximum limit without false output inversion, as long as
the other input is within the common-mode voltage range.
Note 3: V
OS
is defined as the mean of trip points. The trip points are the extremities of the differential input voltage required to make
the comparator output change state (Figure 1).
Note 4: The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis zone (Figure 1).
Note 5: Propagation Delay is guaranteed by design. For low overdrive conditions, V
TRIP
(Figure 1) is added to the overdrive.
Note 6: Propagation-Delay Skew is the difference between the positive-going and the negative-going propagation delay.
Note 7: For design purposes, the t
EN
can be as high as 60µs.
CONDITIONS
MAX998 only, V
CC
= 5V, I
CC
= 90% of typical
(Note 7)
µs15t
EN
Wake-Up from Shutdown
UNITSMIN TYP MAXSYMBOLPARAMETER
V
CC
= 0V to 5V step, output valid µs3t
PU
Power-Up Delay
__________________________________________Typical Operating Characteristics
(V
CC
= +5V, V
CM
= 0V, T
A
= +25°C, unless otherwise noted.)
125
175
275
225
325
375
-60 -20 0-40 20 40 60 80 100
SUPPLY CURRENT PER COMPARATOR
vs. TEMPERATURE
MAX976 TOC01
TEMPERATURE (°C)
SUPPLY CURRENT PER COMPARATOR (µA)
V
CC
= 5.5V,
V
OUT
= LOW
V
CC
= 5.5V,
V
OUT
= HIGH
V
CC
= 2.7V,
V
OUT
= HIGH
V
CC
= 2.7V,
V
OUT
= LOW
10
30
20
50
40
70
60
80
100
90
110
-60 -20 0-40 20 40 60 80 100
SHORT-CIRCUIT OUTPUT CURRENT
vs. TEMPERATURE
MAZX976 TOC2
TEMPERATURE (°C)
OUTPUT CURRENT (mA)
V
CC
= 5.5V, SOURCING
V
CC
= 2.7V, SOURCING
V
CC
= 5.5V, SINKING
V
CC
= 2.7V, SINKING
1.6
0
0.1 1 10 100
OUTPUT LOW VOLTAGE vs.
OUTPUT SINK CURRENT
0.4
0.8
0.6
0.2
1.0
1.2
1.4
MAX976 TOC03
OUTPUT CURRENT (mA)
OUTPUT LOW VOLTAGE (V)
V
CC
= 5.5V
V
CC
= 2.7V
6
0
0.1 1 10 100
OUTPUT HIGH VOLTAGE vs.
OUTPUT SOURCE CURRENT
2
3
1
4
5
MAX976 TOC04
OUTPUT CURRENT (mA)
OUTPUT HIGH VOLTAGE (V)
V
CC
= 5.5V
V
CC
= 2.7V
17
19
18
21
20
22
24
23
25
26
27
-60 -20 0-40 20 40 60 80 100
PROPAGATION DELAY
vs. TEMPERATURE
MAZX976 TOC5
TEMPERATURE (°C)
PROPAGATION DELAY (ns)
V
CC
= 5.5V
V
CC
= 2.7V
V
OD
= 50mV
C
LOAD
= 15pF
40
10
10 100 1000
PROPAGATION DELAY
vs. CAPACITIVE LOAD
MAX976 TOC06
CAPACITIVE LOAD (pF)
PROPAGATION DELAY (ns)
15
25
20
30
35
V
OD
= 50mV