MAX4373/MAX4374/MAX4375

Low-Cost, Micropower, High-Side

Current-Sense Amplifier +

Comparator + Reference ICs

Maxim Integrated | 6

www.maximintegrated.com

20

μs/div

1V

3V

150mV

50mV

LARGE-SIGNAL PULSE RESPONSE

(AV = +20V/V)

MAX4373 toc12

20

μs/div

2.5V

7.5V

150mV

50mV

LARGE-SIGNAL PULSE RESPONSE

(AV = +50V/V)

MAX4373 toc13

20

μs/div

500mV

9.5V

95mV

5mV

LARGE-SIGNAL PULSE RESPONSE

(AV = +100V/V)

MAX4373 toc14

0

-10

-100

10

100

1k

10k

100k

COMMON-MODE REJECTION

vs. FREQUENCY

-50

-60

-70

-80

-90

FREQUENCY (Hz)

-40

-30

-20

0

-10

-100

10

100

1k

10k

100k

POWER-SUPPLY REJECTION

vs. FREQUENCY

-50

-60

-70

-80

-90

FREQUENCY (Hz)

-40

-30

-20

-5

-2

-3

-4

-1

0

1

2

3

4

5

1k

100k

10k

1000k

SMALL-SIGNAL GAIN

vs. FREQUENCY

FREQUENCY (Hz)

AV = +50V/V

AV = +100V/V

AV = +20V/V

5

4

-5

1k

10k

100k

LARGE-SIGNAL GAIN

vs. FREQUENCY

-3

-4

FREQUENCY (Hz)

0

-1

-2

3

2

1

VIN = 100mVP-P (20, 50)

VIN = 50mVP-P (100)

AV = +50V/V

AV = +20V/V

AV = +100V/V

Typical Operating Characteristics (continued)

(VRS+ = +12V, VCC = +12V, RLOAD = 1MΩ, VRESET = 0V, VSENSE = 100mV, VPULL-UP = +5V, RPULL-UP = 10kΩ, TA = +25°C, unless

otherwise noted.)