参数资料
型号: DS18B20+
厂商: Maxim Integrated
文件页数: 20/22页
文件大小: 528K
描述: IC THERM MICROLAN PROG-RES TO-92
产品培训模块: 1-Wire Communications
Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 500
功能: 温度计,恒温计
传感器类型: 内部
感应温度: -55°C ~ 125°C
精确度: ±2°C(最小值)
拓扑: 寄存器库,变签式暂存器
输出类型: 1-Wire?
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: -55°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-226-3、TO-92-3 标准主体
供应商设备封装: TO-92-3
包装: 管件
产品目录页面: 1435 (CN2011-ZH PDF)
DS18B20
 
20 of 22 
AC ELECTRICAL CHARACTERISTICSNV MEMORY
(-55癈 to +100癈; V
DD
= 3.0V to 5.5V)
PARAMETER
SYMBOL     CONDITIONS
MIN
TYP
MAX
UNITS
NV Write C cle Time
t   
 
 
2
10
ms
EEPROM Writes
N
EE   R
 
-55癈 to +55癈
50k
 
 
writes
EEPROM Data Retention
t
EEDR
 
-55癈 to +55癈
10
 
 
ears
 
AC ELECTRICAL CHARACTERISTICS (-55?/SPAN>C to +125?/SPAN>C; V
DD
= 3.0V to 5.5V) 
PARAMETER
SYMBOL    CONDITIONS    MIN   TYP   MAX   UNITS   NOTES
Temperature Conversion
Time
t
CONV
 
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
t
SPON
 
Start Convert T
Command Issued
 
 
10
 
Time Slot
t
L  T
 
 
60
 
120
1
Recover Time
t
RE
 
 
1
 
 
s
1
Write 0 Low Time
t
LOW0
 
 
60
 
120
s
1
Write 1 Low Time
t
LOW1
 
 
1
 
15
1
Read Data Valid
t
RDV
 
 
 
 
15
1
Reset Time Hi  h
t
RSTH
 
 
480
 
 
1
Reset Time Low
t
R TL
 
 
480
 
 
s
1 2
Presence-Detect Hi h
t
     
15
 
60
1
Presence-Detect Low
t
PDLOW
 
 
60
 
240
1
Ca acitance
C
     
 
 
25
F
 
NOTES:    
1) See the timing diagrams in Figure 18.
2) Under parasite power, if t
RSTL
 > 960祍, 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 (癈)
Mean Error
3s Error
-3s Error
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