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參數(shù)資料
| 型號： | DS1821 |
| 元件分類： | 溫度傳感器 |
| 英文描述： | Programmable Digital Thermostat |
| 文件頁數(shù)： | 14/16頁 |
| 文件大小： | 570K |
| 代理商： | DS1821 |
DS1821
14 of 16
AC ELECTRICAL CHARACTERISTICS:
PARAMETER
Temperature Conversion Time
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
EEPROM Write Time
V
DD
Low to Mode Toggle Clock Low
Mode Toggle Clock 16 High to V
DD
High
Mode Toggle Clock Pulse Low Time
Mode Toggle Clock Pulse High Time
Mode Toggle Clock High-to-Low or
Low-to-High Transition Time
Capacitance
(-55°C to +125°C; V
DD
=3.6V to 5.5V)
MIN
TYP
MAX
0.4
1.0
60
120
1
60
120
1
15
15
480
480
15
60
60
240
10
50
100
100
SYMBOL
t
CONV
t
SLOT
t
REC
t
LOW0
t
LOW1
t
RDV
t
RSTH
t
RSTL
t
PDHIGH
t
PDLOW
t
WR
t
PC
t
CP
UNITS
s
μs
μs
μs
μs
μs
μs
μs
μs
μs
ms
ns
ns
NOTES
6
t
CL
t
CH
t
T
0.1
0.1
10
μs
μs
ns
100
C
IN/OUT
25
pF
NOTES:
1.
All voltages are referenced to ground.
2.
Logic 1 voltages are specified at a source current of 1 mA.
3.
Logic 0 voltages are specified at a sink current of 4 mA.
4.
I
DD
specified with V
CC
at 5.0V.
5.
DQ line in “hi-Z” state and Idq=0.
6.
Time for part to disable thermostat output.
7.
For T<0
°
C, accuracy degrades by 0.5
°
C/V for V
CC
<4.3V.
8.
See typical curve for specification limits outside the 0
°
C to +85
°
C range. Thermometer error reflects
sensor accuracy as tested during calibration.
9.
Standby current is specified up to 85
°
C. Standby current is typically 5 uA at 125
°
C.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1821_07 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Programmable Digital Thermostat and Thermometer |
| DS1821+ | 功能描述:板上安裝溫度傳感器 Programmable Digital Thermostat/Thrmmtr RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1821C+ | 功能描述:恒溫器 Programmable Digital Thermo-stat/monitor RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| DS1821-C02 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1821-C04 | 制造商:DSC 功能描述: |
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