MAX31782_12 datasheet(3/20 Pages) MAXIM

Part #	MAX31782

Description	System Management Microcontroller

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Manufacturer	MAXIM [Maxim Integrated Products]

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System Management Microcontroller

3

DC ELECTRICAL CHARACTERISTICS (continued)

(VDD = 2.7V to 5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25NC, unless otherwise

noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

System Clock Startup

tSU:MOSC From POR, MOSC inactive

1000

MOSC

Cycles

Output Logic-Low

VOL

IOL = 4mA (Note 1)

0.4

V

Output Logic-High (all pins

except SDA, SLL, MSDA, MSCL)

VOH

IOH = -2mA (Note 1)

VDD -

0.5

V

GPIO Mode Pullup Current

IPU

VPIN = VSS, VDD = 3.3V

38

55

107

F

A

ADC Voltage Conversion Time

tCONV_V

(Note 4)

137

150

µs

ADC Temperature Conversion

Time

tCONV_T

(Note 4)

7

ms

ADC Internal Reference

1.225

V

ADC Voltage Measurement Error

VERR

-1

+1

%

ADC Internal Reference

Temperature Drift

-0.5

+0.5

%

ADC Internal Reference Initial

Accuracy (+25NC)

-1

+1

mV

ADC External Reference Buffer

Accuracy

(Note 5)

Q

0.25

%

ADC Operating Current

IADC

This current is in addition to ICPU

2.2

mA

ADC Full-Scale Input Voltage

(Note 6)

VFS

ADGAIN = 0, factory set, internal reference

1.213

1.225

1.237

V

ADGAIN = 1, factory set, internal reference

5.445

5.5

5.555

ADC Measurement Resolution

VLSB

ADGAIN = 0

300

F

V

ADGAIN = 1

1343

ADC Bit Resolution

12

Bits

AD0P–AD5P Input Resistance

RIN

15

MI

ADC Integral Nonlinearity

INL

(Note 7)

Q

8

LSB

ADC Offset

VOFFSET

Q

2

LSB

Internal Temperature

Measurement Error

TA = -40NC to +85NC

-3

+3

N

C

Remote Temperature

Measurement Error

(MAX31782 Error Only)

TA = 0NC to +60NC,

TDIODE = +60NC to +120NC

-1.5

+1.5

N

C

TA = 0NC to +60NC,

TDIODE = -45NC to +120NC

-1.75

+1.75

TA = -40NC to +85NC,

TDIODE = +60 to +120NC

-2.75

+2.75

TA = -40NC to +85NC,

TDIODE = -45NC to +120NC

-3.0

+3.0

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