Datasheet

(V+ = +12V, V
RS+
= 12V, R
OUT
= 1kΩ, T
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
40
-5
0.1m 10m
100m1m 1
ERROR vs. SENSE VOLTAGE
0
MAX4172-04
V
SENSE
(V)
ERROR (%)
10
5
15
20
25
30
35
35
0
0.01
0.1 1 10 100 1000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
5
MAX4172-05
POWER-SUPPLY FREQUENCY (kHz)
ERROR (%)
15
10
20
30
25
5mV
P-P
1.0V
P-P
0.5V
P-P
V
SENSE
= 100mV
1.0
0.6
-1.8
0 84 28 32
OUTPUT ERROR
vs. COMMON MODE VOLTAGE
-1.4
-1.0
0.2
-0.2
MAX4172-06
V+ (V)
OUTPUT ERROR (%)
12 16 20
-0.6
24
V
SENSE
= 100mV
T
A
= +25°C
T
A
= +105°C
T
A
= -40°C
T
A
= +85°C
2.98
2.88
2.38
-50 -25 0 125
V+ THRESHOLD FOR PG OUTPUT LOW
vs. TEMPERATURE
2.78
2.68
2.58
2.48
MAX4172-07
TEMPERATURE (°C)
V+ TRIP THRESHOLD (V)
25 50 75 100
10µs/div
0 to 10mV V
SENSE
TRANSIENT RESPONSE
GND
V
SENSE
5mV/div
V
OUT
50mV/div
GND
MAX4172-08
10µs/div
0 to 100mV V
SENSE
TRANSIENT RESPONSE
GND
V
SENSE
50mV/div
V
OUT
500mV/div
GND
MAX4172-09
MAX4172 Low-Cost, Precision, High-Side
Current-Sense Amplier
Maxim Integrated │ 4
www.maximintegrated.com