User Manual

MAX907/MAX908/MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power,
Single-Supply TTL Comparators
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ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, T
A
= +25°C; MAX909 only: V- = 0, V
LATCH
= 0; unless otherwise noted.)
PARAMETER
SYMBOL CONDITIONS MIN TYP MAX UNITS
Propagation Delay
t
PD+,
t
PD-
40 50 ns
Differential Propagation Delay
∆t
PD
1 ns
Propagation Delay Skew
t
PD
skew
2 ns
Latch Input Voltage High
V
IH
(Note 12) 2.0 V
Latch Input Voltage Low
V
IL
(Note 12) 0.8 V
Latch Input Current
I
IH
, I
IL
(Note 12) 20 µA
Latch Setup Time
t
s
(Note 12) 2 ns
Latch Hold Time
t
h
(Note 12) 2 ns
V
IN
= 100mV, V
OD
= 5mV,
(Note 9)
V
IN
= 100mV, V
OD
= 5mV,
(Note 10)
MAX909 only: V
IN
= 100mV,
V
OD
= 5mV, (Note 11)
ELECTRICAL CHARACTERISTICS
(V+ = 5V, T
A
= T
MIN
to T
MAX
; MAX909 only: V- = 0, V
LATCH
= 0; unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Positive Trip Point V
TRIP+
(Note 1) 2 5 mV
Negative Trip Point V
TRIP-
(Note 1) -2 -5 mV
Input Offset Voltage V
OS
(Note 2) 1 3 mV
Input Bias Current I
B
V
CM
= 0, V
IN
= V
OS
200 500 nA
Input Offset Current I
OS
V
CM
= 0, V
IN
= V
OS
50 100 nA
MAX907/MAX908/MAX909 -0.2 V+ - 1.5
Input Voltage Range V
CMR
C/E temp.
ranges
(Notes 3, 4)
MAX909 only, V- = -5V -5.2 V+ - 1.5
V
Common-Mode Rejection Ratio CMRR (Notes 4, 5) 75 200 µV/V
Power-Supply Rejection Ratio PSRR (Notes 4, 6) 75 200 µV/V
Output High Voltage V
OH
I
SOURCE
= 100µA 2.8 3.5 V
T
A
= T
MAX
0.4
T
MIN
= 0°C 0.425
Output Low Voltage V
OL
I
SINK
= 3.2mA
T
MIN
= -40°C 0.450
V
MAX907/MAX908 0.8 1.2
Positive Supply Current per
Comparator
I+ (Note 7)
MAX909 1.2 2.0
mA
Negative Supply Current I- MAX909 only; V- = -5V 100 200 µV
MAX907/MAX908 4 7
Power Dissipation per
Comparator
PD (Note 8)
MAX909 6 11
mW