DS1821

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ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

-0.5V to +7.0V

Operating Temperature

-55

°C to +125°C

Storage Temperature

-55

°C to +125°C

Soldering Temperature

260

°C for 10 seconds

* This is a stress rating only and functional operation of the device at these or any other conditions above

those indicated in the operation sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods of time may affect reliability.

RECOMMENDED DC OPERATING CONDITIONS

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

NOTES

Supply Voltage

Operation

2.7V

5.5

V

1

Data Pin

DQ

-0.5

5.5

V

1

Logic 1

2.0

VCC+0.3

V

1, 2

Logic 0

-0.3

+0.8

V

1, 3

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

NOTES

Thermometer Error

0°C to

+85°C

±1

°C

7, 8

-55°C to

-40°C and

85°C to

+125°C

See Typical Curve

Open Drain Output

Logic Low (DQ pin)

-0.3

+0.8

V

1, 3

Sink Current

-4.0

mA

1

Standby Current

1.0

3.0

µA

9

Active Current

Temperature

Conversions,

Programming

500

1000

µA

4

Input Resistance

500

KΩ

5