DS1822

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

-0.5V to +6.0V

Operating Temperature Range

-55

°C to +125°C

Storage Temperature Range

-55

°C to +125°C

Solder Dip Temperature

See IPC/JEDEC J-STD-020A Specification

Reflow Oven Temperature

+220°C

*These are stress ratings 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.

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

NOTES

Supply Voltage

Local Power

+3.0

+5.5

V

1

Pullup Supply

Voltage

Parasite Power

+3.0

+5.5

V

1, 2

Local Power

+3.0

Thermometer Error

-10°C to

+85°C

±2

°C

3

-55°C to

+125°C

±3

Input Logic Low

-0.3

+0.8

V

1, 4, 5

Input Logic High

Local Power

+2.2

The lower of

5.5

or

V

1, 6

Parasite Power

+3.0

Sink Current

4.0

mA

1

Standby Current

750

1000

nA

7, 8

Active Current

1

1.5

mA

9

DQ Input Current

5

µA

10

Drift

±0.2

°C

11

NOTES:

1.

All voltages are referenced to ground.

2.

The Pullup Supply Voltage specification assumes that the pullup device is ideal, and therefore the

supply rail for the strong pullup transistor must include margin for the voltage drop across the

3.

See typical performance curve in Figure 17.

4.

Logic low voltages are specified at a sink current of 4mA.

5.

reduced to as low as 0.5V.

6.

Logic high voltages are specified at a source current of 1mA.

7.

Standby current specified up to +70

°C. Standby current typically is 3µA at +125°C.

8.

0.3V

≤ DQ ≤ V

9.

Active current refers to supply current during active temperature conversions or EEPROM writes.

10. DQ line is high (high-Z state).

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