MAX9634TERS+ datasheet(3/11 Pages) MAXIM

Part #	MAX9634TERS+

Description	1μA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier

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Manufacturer	MAXIM [Maxim Integrated Products]

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1µA, 4-Bump UCSP/SOT23,

Precision Current-Sense Amplifier

_______________________________________________________________________________________

3

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

Note 2: VOUT = 0. ICC is the total current into RS+ plus RS- pins.

Note 3: VOS is extrapolated from measurements for the gain-error test.

Note 4: Gain error is calculated by applying two values of VSENSE and calculating the error of the slope vs. the ideal:

Gain = 25, VSENSE is 20mV and 120mV.

Gain = 50, VSENSE is 10mV and 60mV.

Gain = 100, VSENSE is 5mV and 30mV.

Gain = 200, VSENSE is 2.5mV and 15mV.

Note 5: The device is stable for any external capacitance value.

Note 6: VOH is the voltage from VRS- to VOUT with VSENSE = 3.6V/gain.

ELECTRICAL CHARACTERISTICS (continued)

(VRS+ = VRS- = 3.6V, VSENSE = (VRS+ - VRS-) = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

OUT High Voltage

VOH

VOH = VRS- - VOUT (Note 6)

0.1

0.2

V

VSENSE = 50mV, gain = 25

125

VSENSE = 50mV, gain = 50

60

VSENSE = 50mV, gain = 100

30

Small-Signal Bandwidth

(Note 5)

BW

VSENSE = 50mV, gain = 200

15

kHz

Output Settling Time

tS

1% final value, VSENSE = 50mV

100

µs

Power-Up Time

tON

1% final value, VSENSE = 50mV

200

µs

Typical Operating Characteristics

(VRS+ = VRS- = 3.6V, TA = +25°C, unless otherwise noted.)

0

10

5

20

15

25

30

-0.4 -0.3 -0.2 -0.1

0

0.2

0.3

0.1

0.4

INPUT OFFSET VOLTAGE HISTOGRAM

INPUT OFFSET VOLTAGE (mV)

0

10

5

20

15

25

30

-0.4 -0.3 -0.2 -0.1

0

0.2

0.3

0.1

0.4

GAIN ERROR HISTOGRAM

GAIN ERROR (%)

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

10

-15

35

60

0.4

0.2

0.6

0.8

1.0

1.2

1.4

28V

3.6V

1.8V

0

-40

85

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