MAX4372F datasheet(3/11 Pages) MAXIM

3 / 11 page

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

Current-Sense Amplifier with Voltage Output

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ELECTRICAL CHARACTERISTICS (continued)

(VRS+ = 0 to 28V, VCC = 2.7V to 28V, VSENSE = 0, 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 will not reverse phase when overdriven.

VRS+ = 12V,

VCC = 12V,

CLOAD = 10pF

CONDITIONS

MAX4372T

VSENSE = 20mV,

gain = 20V/V

kHz

275

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

VSENSE = 20mV,

gain = 50V/V

200

VSENSE = 20mV,

gain = 100V/V

110

-3dB Bandwidth

MAX4372F

MAX4372H

V/V

100

Gain

No sustained oscillations

VSENSE = 100mV

1.5

ROUT

OUT Output Resistance

1000

Capacitive-Load Stability

VSENSE = 20mV

to 100mV

±5.5

Gain Accuracy

VOUT = 2V, VRS+ > 2V

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

0.1

Saturation Recovery Time

(Note 9)

VCC = 12V, VRS+ = 12V,

VSENSE = 100mV, CLOAD = 10pF

0.5

Power-Up Time to 1% of

Final Value

PSR

Power-Supply Rejection

VSENSE = 6.25mV

±0.25

±2.5

TA = +25°C

TA = -40°C to +85°C

VSENSE = 6.25mV to

100mV

VSENSE = 100mV to

6.25mV

Gain = 20V/V,

VCC = 12V,

VRS+ = 12V,

CLOAD = 10pF

µs

OUT Settling Time to 1% of

Final Value

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