参数资料
型号: DS1822Z/T&R
厂商: Maxim Integrated
文件页数: 20/21页
文件大小: 0K
描述: IC THERMOMETER ECONO DIG 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
感应温度: -55°C ~ 125°C
输出类型: 数字
电源电压: 3 V ~ 5 V
精确度: ±2°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
DS1822
AC ELECTRICAL CHARACTERISTICS: NV MEMORY
(-55°C to +100°C; V DD = 3.0V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
NV Write Cycle Time t wr 2 10 ms
EEPROM Writes N EEWR -55°C to +55°C 50k writes
EEPROM Data Retention t EEDR -55°C to +55°C 10 years
AC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; V DD = 3.0V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Temperature Conversion t CONV 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 t SPON Start Convert T 10 μs
Command Issued
Time Slot t SLOT 60 120 μs 1
Recovery Time t REC 1 μs 1
Write 0 Low Time r LOW0 60 120 μs 1
Write 1 Low Time t LOW1 1 15 μs 1
Read Data Valid t RDV 15 μs 1
Reset Time High t RSTH 480 μs 1
Reset Time Low t RSTL 480 μs 1,2
Presence Detect High t PDHIGH 15 60 μs 1
Presence Detect Low t PDLOW 60 240 μs 1
Capacitance C IN/OUT 25 pF
NOTES:
1. Refer to timing diagrams in Figure 18.
2. Under parasite power, if t RSTL > 960 μ s, a power on reset may occur.
TYPICAL PERFORMANCE CURVE Figure 17
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-1.2
DS1822 Typical Performance Curve
+3s Error
Mean Error
-3s Error
-10
0
10
20
30 40
Temperature (°C)
50
60
70
80
20 of 21
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