(VRS+ = 0 to 28V, VCC = 2.7V to 28V, VSENSE = 0V, RLOAD = 1MΩ, TA = TMIN to TMAX, unless otherwise noted. Typical values are

at TA = +25°C.) (Note 1)

Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 2: Guaranteed by PSR test.

Note 3: Guaranteed by OUT voltage error test.

Note 4: Output voltage is internally clamped not to exceed 12V.

Note 5: VOS is extrapolated from the gain accuracy tests.

Note 6: Total OUT voltage error is the sum of gain and offset voltage errors.

Note 7: Measured at IOUT = -500μA (RLOAD = 4kΩ for gain = 20V/V, RLOAD = 10kΩ for gain = 50V/V, RLOAD = 20kΩ for gain = 100V/V).

Note 8: 6.25mV = 1/16 of 100mV full-scale voltage (C/16).

Note 9: The device does not reverse phase when overdriven.

MAX4372T/F/H

Low-Cost, UCSP/SOT23, Micropower, High-Side

Current-Sense Amplifier with Voltage Output

www.maximintegrated.com

Maxim Integrated │ 3

Electrical Characteristics (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

OUT Low Voltage

(MAX4372T, MAX4372F)

VOL

VCC = 2.7V,

VSENSE = -10mV,

VRS+ = 28V

IOUT = 10μA

2.6

mV

IOUT = 100μA

9

65

OUT Low Voltage

(MAX4372H)

VOL

VCC = 2.7V,

VSENSE = -10mV,

VRS+ = 12V

IOUT = 10μA

2.6

mV

IOUT = 100μA

9

65

OUT High Voltage

VCC - VOH

VCC = 2.7V, IOUT = -500μA,

VSENSE = 250mV, VRS+ = 28V

0.1

0.25

V

-3dB Bandwidth

BW

VRS+ = 12V,

VCC = 12V,

CLOAD = 10pF

VSENSE = 20mV,

gain = 20V/V

275

kHz

VSENSE = 20mV,

gain = 50V/V

200

VSENSE = 20mV,

gain = 100V/V

110

VSENSE = 6.25mV

50

Gain

MAX4372T

20

V/V

MAX4372F

50

MAX4372H

100

Gain Accuracy

VSENSE = 20mV

to 100mV, VRS+=12V

TA = +25°C

±0.25

±2.5

%

TA = -40°C to +85°C

±5.5

OUT Settling Time to 1% of

Final Value

Gain = 20V/V,

VCC = 12V,

VRS+ = 12V,

CLOAD = 10pF

VSENSE = 6.25mV to

100mV

20

µs

VSENSE = 100mV to

6.25mV

20

Capacitive-Load Stability

No sustained oscillations

1000

pF

OUT Output Resistance

ROUT

VSENSE = 100mV

1.5

Ω

Power-Supply Rejection

PSR

VOUT = 2V, VRS+ > 2V

75

85

dB

Power-Up Time to 1% of

Final Value

VCC = 12V, VRS+ = 12V,

VSENSE = 100mV, CLOAD = 10pF

0.5

ms

Saturation Recovery Time

(Note 9)

VCC = 12V, VRS+ = 12V, CLOAD = 10pF

0.1

ms