MAX4072ATA Просмотр технического описания (PDF) - Maxim Integrated

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MAX4072ATA

Bidirectional, High-Side, Current-Sense Amplifiers with Reference

Maxim Integrated 

MAX4069–MAX4072

Bidirectional, High-Side, Current-Sense

Amplifiers with Reference

Electrical Characteristics (continued)

(VRS+ = VRS- = VCC = 2.7V to 24V, VSENSE = VRS+ - VRS- = 0V, IREFOUT = 0, VSHDN = VCC, VGSEL = GND, VREFIN = 2.5V

(MAX4072), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C and at VCC = VRS+ = 12V.) (Notes 1, 2)

PARAMETER

SYMBOL

REFOUT (MAX4069/MAX4070/MAX4071)

CONDITIONS

MIN TYP MAX UNITS

Reference Output Voltage

Reference Output Voltage

Temperature Coefficient

Load Regulation

Line Regulation

REF Capacitive-Load Stability

Reference Adjust Voltage

Threshold

Reference Output Voltage Range

Reference Adjust Input Current

REFIN (MAX4072 ONLY)

Input-Voltage Range

Input Current

MAX4069,

VCC = 12V

(Note 2)

TA = +25°C

TA = TMIN to TMAX

VREF

TCVREF

∆VREFOUT

/∆IREF

∆VREF/

∆VCC

MAX4070,

VCC = 12V

TA = +25°C

TA = TMIN to TMAX

MAX4071,

VCC = 12V

TA = +25°C

TA = TMIN to TMAX

VCC = 12V

-40°C ≤ TA ≤ +85°C

TA = TMIN to TMAX

IREFOUT = 0 to 500µA

IREFOUT = 0 to -100µA

2.7V ≤ VCC ≤ 24V

VADJ

IADJ

MAX4069, VCC = 12V

MAX4069, range adjustable with R1 and

R2, VCC = 12V

MAX4069, VCC = 12V, VADJ = 1.23V

VCC = 12V

REFIN = 2.5V, VCC = 12V

2.44 2.49 2.54

2.39

2.59

2.45

2.5

2.55

V

2.40

2.60

1.47

1.5

1.53

1.44

1.56

15

ppm/°C

20

2

mV/mA

4

20

µV/V

500

pF

1.230

V

VADJ

to +4

V

100

nA

1

4

V

-60

+20

µA

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

Note 2: R1 = 215kΩ, R2 = 210kΩ for the MAX4069 only (see Functional Diagram). This sets REFOUT to 2.49V nominal.

Note 3: Guaranteed by the PSRR test.

Note 4: The REFOUT voltage for the MAX4069 should be set such that it does not exceed VCC - 1.1V. Similarly, the maximum

REFIN voltage for the MAX4072 should also be less than VCC - 1.1V.

Note 5: Input-Referred Offset Voltage is defined as the voltage difference between OUT and REFOUT, divided by the selected gain

of either 50 or 100, when VSENSE = VRS+ - VRS- = 0V.

Note 6: The negative full-scale sense voltage is limited by the voltage range of OUT from VREFOUT to GND.

Note 7: Total OUT Voltage Error is the sum of offset voltage and gain errors. The output voltage is measured relative to the

reference (REFOUT or REFIN).

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