Data Sheet

DS18B20
24 of 27
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground -0.5V to +6.0V
Operating Temperature -55°C to +125°C
Storage Temperature -55°C to +125°C
Soldering Temperature See J-STD-020A specification
* 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 V
DD
Local Power 3.0 5.5 V 1
Data Pin DQ -0.3 +5.5 V 1
Logic 1 V
IH
2.2
V
CC
+
0.3
V 1,2
Logic 0 V
IL
-0.3 +0.8 V 1,3,7
DC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; V
DD
=3.0V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Thermometer Error t
ERR
-10°C to +85°C
±½ °C
-55°C to +125°C ±2
Input Logic High V
IH
Local Power
Parasite Power
2.2
3.0
5.5 V
V
1,2
1,2
Input Logic Low V
IL
-0.3 +0.8 V 1,3,7
Sink Current I
L
V
I/O
=0.4V -4.0 mA 1
Standby Current I
DDS
750 1000 nA 6,8
Active Current I
DD
1 1.5 mA 4
DQ-Input Load
Current
I
DQ
5µA5
AC ELECTRICAL CHARACTERISTICS: NV MEMORY
(-55°C to +125°C; V
DD
=3.0V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
NV Write Cycle
Time
t
wr
210ms
EEPROM Writes N
EEWR
-55°C to +55°C 50k writes
EEPROM Data
Retention
t
EEDR
-55°C to +55°C 10 years