Digital Thermometers and Thermostats

with SPI/3-Wire Interface

2

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

Voltage Range on Any Other Pin Relative to GND...-0.3V to +6.0V

F

MAX (derate 4.5mW/NC above +70NC)......................362mW

EEPROM Programming Temperature Range . ...-40NC to +85NC

Operating Junction Temperature Range ......... -55NC to +125NC

Storage Temperature Range............................ -55NC to +125NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

RECOMMENDED OPERATING CHARACTERISTICS

DC ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

(Note 1)

1.7

3.7

V

Input Logic-High

(Note 1)

V

Input Logic-Low

(Note 1)

-0.3

V

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

MAX31722 Thermometer Error

-40NC to +85NC

Q

2.0

N

C

-55NC to +125NC

Q

3.0

MAX31723 Thermometer Error

0NC to +70NC

Q

0.5

N

C

-55NC to +125NC

Q

2.0

Resolution

9

12

Bits

Conversion Time

9-bit conversions

25

ms

10-bit conversions

50

11-bit conversions

100

12-bit conversions

200

Logic 0 Output (SDO, TOUT)

(Note 2)

0.4

V

Logic 1 Output (SDO)

(Note 3)

0.4

V

Leakage Current

-1

+1

F

A

Active Current

Active temperature conversions (Note 4)

1150

F

A

Communication only

100

EEPROM writes (-40NC to +85NC)

1150

EEPROM writes during active temperature

conversions (-40NC to +85NC)

1200

Shutdown Current

2

F

A