Datasheet

MAX4373/MAX4374/MAX4375
Low-Cost, Micropower, High-Side Current-Sense
Amplifier + Comparator + Reference ICs
_______________________________________________________________________________________ 5
5
4
3
2
1
0
-1
-2
-3
-4
-5
2684 10121416182022242628
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE
MAX4373 toc04
SUPPLY VOLTAGE (V)
OUTPUT ERROR (%)
A
V
= +50V/V
A
V
= +20V/V
A
V
= +100V/V
V
SENSE
= 6.25mV
-2.5
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
05025 75 100 125 150
TOTAL OUTPUT ERROR
vs. SENSE VOLTAGE
MAX4373 toc05
V
SENSE
(mV)
OUTPUT ERROR (%)
A
V
= +50V/V
A
V
= +20V/V
A
V
= +100V/V
V
CC
= +5.5V
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
05025 75 100 125 150
TOTAL OUTPUT ERROR
vs. SENSE VOLTAGE
MAX4373 toc06
V
SENSE
(mV)
OUTPUT ERROR (%)
A
V
= +50V/V
A
V
= +100V/V
A
V
= +20V/V
0
1.0
0.5
2.0
1.5
2.5
3.0
0507525 100 125 150
TOTAL OUTPUT ERROR
vs. SENSE VOLTAGE
MAX4373 toc07
V
SENSE
(mV)
OUTPUT ERROR (%)
A
V
= +50V/V
A
V
= +20V/V
A
V
= +100V/V
V
CC
= +28V
12
10
8
6
4
2
-2
0
2684 10121416182022242628
TOTAL OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
MAX4373 toc08
COMMON-MODE VOLTAGE (V)
OUTPUT ERROR (%)
A
V
= +50V/V
A
V
= +100V/V
A
V
= +20V/V
INPUT
OUTPUT
20µs/div
200mV
600mV
30mV
10mV
SMALL-SIGNAL PULSE RESPONSE
(A
V
= +20V/V)
MAX4373 toc09
INPUT
OUTPUT
20µs/div
500mV
1.5V
30mV
10mV
SMALL-SIGNAL PULSE RESPONSE
(A
V
= +50V/V)
MAX4373 toc10
Typical Operating Characteristics (continued)
(V
RS+
= +12V, V
CC
= +12V, R
LOAD
= 1MΩ, V
RESET
= 0V, V
SENSE
= 100mV, V
PULL-UP
= +5V, R
PULL-UP
= 10kΩ, T
A
= +25°C, unless
otherwise noted.)
INPUT
OUTPUT
20µs/div
1V
3V
30mV
10mV
SMALL-SIGNAL PULSE RESPONSE
(A
V
= +100V/V)
MAX4373 toc11