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DS18B20 Datasheet(PDF) 20 Page - Maxim Integrated Products

Part # DS18B20
Description  1-Wire Digital Thermometer
PDF  22 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS18B20 Datasheet(HTML) 20 Page - Maxim Integrated Products

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DS18B20
20 of 22
AC ELECTRICAL CHARACTERISTICS—NV MEMORY
(-55°C to +100°C; VDD = 3.0V to 5.5V)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
NV Write Cycle Time
tWR
2
10
ms
EEPROM Writes
NEEWR
-55°C to +55°C
50k
writes
EEPROM Data Retention
tEEDR
-55°C to +55°C
10
years
AC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; VDD = 3.0V to 5.5V)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
NOTES
Temperature Conversion
Time
tCONV
9-bit resolution
93.75
ms
1
10-bit resolution
187.5
11-bit resolution
375
12-bit resolution
750
Time to Strong Pullup On
tSPON
Start Convert T
Command Issued
10
µs
Time Slot
tSLOT
60
120
µs
1
Recovery Time
tREC
1
µs
1
Write 0 Low Time
tLOW0
60
120
µs
1
Write 1 Low Time
tLOW1
1
15
µs
1
Read Data Valid
tRDV
15
µs
1
Reset Time High
tRSTH
480
µs
1
Reset Time Low
tRSTL
480
µs
1,2
Presence-Detect High
tPDHIGH
15
60
µs
1
Presence-Detect Low
tPDLOW
60
240
µs
1
Capacitance
CIN/OUT
25
pF
NOTES:
1) See the timing diagrams in Figure 18.
2) Under parasite power, if tRSTL > 960µs, a power-on reset may occur.
Figure 17. Typical Performance Curve
DS18B20 Typical Error Curve
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0
10
20
30
40
50
60
70
Temperature (°C)
Mean Error
+3s Error
-3s Error



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