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MAX472

Precision, High-Side Current-Sense Amplifiers

Maxim Integrated 

Precision, High-Side

Current-Sense Amplifiers

____________________________Typical Operating Characteristics (continued)

(Typical Operating Circuit (MAX471) or circuit of Figure 4, RG1 = RG2 = 200Ω, ROUT = 2kΩ (MAX472), TA = +25°C, unless

otherwise noted.)

MAX472

ERROR vs. SENSE VOLTAGE

25

MAX471

NOISE vs. LOAD CURRENT

0.5

15

0.4

VRG1-VRG2

5

0.3

0

-5

0.2

VRG2-VRG1

-15

0.1

-25

0.1

1

10

100

VSENSE (mV)

1000

0

1mA

10mA

100mA

1A

ISENSE

MAX471

0mA to 100mA TRANSIENT RESPONSE

LOAD

CURRENT

50mA/div

0A

VOUT

50mV/div

100µs/div

VCC = 10V, ROUT = 2kΩ 1%, SIGN PULL-UP = 50kΩ 1%

MAX471

START-UP DELAY

MAX471

-100mA to +100mA TRANSIENT RESPONSE

LOAD

0A

CURRENT

100mA/div

VOUT

50mV/div

50mA/div

100µs/div

VCC = 10V, ROUT = 2kΩ 1%, SIGN PULL-UP = 50kΩ 1%

SIGN

50mV/div

MAX471

0A TO 3A TRANSIENT RESPONSE

ILOAD

1A/div

VOUT

500mV/div

VSHDN

5V/div

VOUT

10mV/div

10µs/div

ILOAD = 1A, ROUT = 2kΩ 1%

ROUT = 2kΩ 1%

10µs/div

_______________________________________________________________________________________ 5

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