Datasheet

Ultra-Low-Power, Open-Drain,
Single/Dual-Supply Comparators
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V+ = 5V, V- = GND = 0V, T
A
= +25°C, unless otherwise noted.)
1000
1
1.0 2.0 2.2 2.4
RESPONSE TIME
AT LOW SUPPLY VOLTAGES (V
OHL
)
10
100
MAX971-4/981-4 TOC13
SINGLE-SUPPLY VOLTAGE (V)
RESPONSE TIME (µs)
1.2 1.4 1.6 1.8
-20mV
-100mV
R
PULLUP
= 10kΩ
100
0.1
1.0 2.0 2.5
MAX9_4
SINK CURRENT
AT LOW SUPPLY VOLTAGES
1
10
MAX971-4/981-4 TOC14
SINGLE-SUPPLY VOLTAGE (V)
CURRENT (mA)
1.5
SINK CURRENT AT V
OUT
= 0.4V
20
15
0
010
SHORT-CIRCUIT SINK CURRENT
vs. SUPPLY VOLTAGE
MAX971-4/981-4 TOC15
TOTAL SUPPLY VOLTAGE (V)
SINK CURRENT (mA)
5
10
5
25
OUT CONNECTED TO V+
GND CONNECTED TO V-
5.0
0
-0.3 -0.1 0.3
MAX9_1/MAX972/MAX9_4
TRANSFER FUNCTION
1.0
4.0
MAX971-4/981-4 TOC10
IN+ INPUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
0.1
3.0
2.0
4.5
0.5
3.5
2.5
1.5
-0.2 0
0.2
100kΩ
+5V
10kΩ
V
0
10µF
18
2
0 20 60 100
RESPONSE TIME vs.
LOAD CAPACITANCE
6
14
MAX971-4/981-4 TOC11
LOAD CAPACITANCE (nF)
RESPONSE TIME (µs)
40 80
10
16
4
12
8
V- = 0V
V
OHL
-2 2 10 18
RESPONSE TIME FOR VARIOUS
INPUT OVERDRIVES (V
OHL
)
0
4
MAX971-4/981-4 TOC12
RESPONSE TIME (µs)
V
OUT
(V)
614
2
0
5
100
3
1
50mV
100mV
20mV
10mV
V
IN
(mV)