Datasheet

MAX4373/MAX4374/MAX4375
Low-Cost, Micropower, High-Side Current-Sense
Amplifier + Comparator + Reference ICs
6 _______________________________________________________________________________________
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
150mV
50mV
LARGE-SIGNAL PULSE RESPONSE
(A
V
= +20V/V)
MAX4373 toc12
INPUT
OUTPUT
20µs/div
2.5V
7.5V
150mV
50mV
LARGE-SIGNAL PULSE RESPONSE
(A
V
= +50V/V)
MAX4373 toc13
INPUT
OUTPUT
20µs/div
500mV
9.5V
95mV
5mV
LARGE-SIGNAL PULSE RESPONSE
(A
V
= +100V/V)
MAX4373 toc14
0
-10
-100
10 100 1k 10k 100k
COMMON-MODE REJECTION
vs. FREQUENCY
-50
-60
-70
-80
-90
MAX4373 toc15
FREQUENCY (Hz)
CMR (dB)
-40
-30
-20
0
-10
-100
10 100 1k 10k 100k
POWER-SUPPLY REJECTION
vs. FREQUENCY
-50
-60
-70
-80
-90
MAX4373 toc16
FREQUENCY (Hz)
PSR (dB)
-40
-30
-20
-5
-2
-3
-4
-1
0
1
2
3
4
5
1k 100k10k 1000k
SMALL-SIGNAL GAIN
vs. FREQUENCY
MAX4373 toc17
FREQUENCY (Hz)
GAIN (dB)
A
V
= +50V/V
A
V
= +100V/V
A
V
= +20V/V
5
4
-5
1k 10k 100k
LARGE-SIGNAL GAIN
vs. FREQUENCY
-3
-4
MAX4373 toc18
FREQUENCY (Hz)
GAIN (dB)
0
-1
-2
3
2
1
V
IN
= 100mV
P-P
(20, 50)
V
IN
= 50mV
P-P
(100)
A
V
= +50V/V
A
V
= +20V/V
A
V
= +100V/V