參數(shù)資料
型號(hào): DS18B20Z
廠商: DALLAS SEMICONDUCTOR
元件分類: Switch/Digital Output Temperature Sensor
英文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
封裝: 0.150 INCH, SOIC-8
文件頁(yè)數(shù): 11/20頁(yè)
文件大小: 149K
代理商: DS18B20Z
DS18B20
19 of 20
AC ELECTRICAL CHARACTERISTICS: NV MEMORY
(-55°C to +100°C; VDD=3.0V to 5.5V)
PARAMETER
SYMBOL
CONDITION
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
CONDITION
MIN
TYP
MAX
UNITS
NOTES
Temperature Conversion
tCONV
9-bit resolution
93.75
ms
1
Time
10-bit resolution
187.5
ms
1
11-bit resolution
375
ms
1
12-bit resolution
750
ms
1
Time to Strong Pullup On
tSPON
Start Convert T
Command Issued
10
s
Time Slot
tSLOT
60
120
s
1
Recovery Time
tREC
1
s
1
Write 0 Low Time
rLOW0
60
120
s
1
Write 1 Low Time
tLOW1
1
15
s
1
Read Data Valid
tRDV
15
s
1
Reset Time High
tRSTH
480
s
1
Reset Time Low
tRSTL
480
s
1,2
Presence Detect High
tPDHIGH
15
60
s
1
Presence Detect Low
tPDLOW
60
240
s
1
Capacitance
CIN/OUT
25
pF
NOTES:
1.
Refer to timing diagrams in Figure 18.
2.
Under parasite power, if tRSTL > 960
s, a power on reset may occur.
TYPICAL PERFORMANCE CURVE Figure 17
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
1020
3040
5060
70
Reference Temp (°C)
T
herm
o
m
e
te
rE
rror
C)
Mean Error
+3s Error
-3s Error
相關(guān)PDF資料
PDF描述
DS18B20 DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20U+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
DS18B20-SL+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20/T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20U DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
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