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參數資料
| 型號： | DS1822Z/T&R |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Switch/Digital Output Temperature Sensor |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | SO-8 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 222K |
| 代理商： | DS1822Z/T&R |
1 of 21
101107
FEATURES
Unique 1-Wire
interface requires only one
port pin for communication.
Each device has a unique 64-bit serial code
stored in an on-board ROM.
Multidrop capability simplifies distributed
temperature-sensing applications.
Requires no external components.
Can be powered from data line. Power supply
range is 3.0V to 5.5V.
Measures temperatures from -55°C to +125°C
(-67°F to +257°F).
±2.0°C accuracy from -10°C to +85°C.
Thermometer resolution is user-selectable
from 9 to 12 bits.
Converts temperature to 12-bit digital word in
750ms (max.)
User-definable
nonvolatile
(NV)
alarm
settings.
Alarm
search
command
identifies
and
addresses
devices
whose
temperature
is
outside of programmed limits (temperature
alarm condition).
Software compatible with the DS18B20.
Applications include thermostatic controls,
industrial
systems,
consumer
products,
thermometers, or any thermally sensitive
system.
PIN ASSIGNMENT
PIN DESCRIPTION
GND - Ground
DQ
- Data In/Out
VDD
- Power Supply Voltage
NC
- No Connect
DESCRIPTION
The DS1822 digital thermometer provides 9- to 12-bit centigrade temperature measurements and has an
alarm function with NV user-programmable upper and lower trigger points. The DS1822 communicates
over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a
central microprocessor. It has an operating temperature range of –55°C to +125°C and is accurate to
±2.0°C over the range of –10°C to +85°C. In addition, the DS1822 can derive power directly from the
data line (“parasite power”), eliminating the need for an external power supply.
Each DS1822 has a unique 64-bit serial code, which allows multiple DS1822s to function on the 1-Wire
bus; thus, it is simple to use one microprocessor to control many DS1822s distributed over a large area.
Applications that can benefit from this feature include HVAC environmental controls, temperature
monitoring systems inside buildings, equipment or machinery, and process monitoring and control
systems.
1
(BOTTOM VIEW)
2
3
DS1822
Econo 1-Wire Digital
Thermometer
www.maxim-ic.com
8-Pin 150mil SO
(DS1822Z)
TO-92
(DS1822)
DALLAS
1822
1
GND
DQ
V
DD
2 3
NC
GND
DQ
VDD
NC
6
8
7
5
3
1
2
4
DS182
2
1-Wire is a registered trademark of Dallas Semiconductor.
相關PDF資料 |
PDF描述 |
|---|---|
| DS1822/T&R | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| DS1822 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| DS1822+T&R | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| DS1822Z | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| DS18B20-PAR/T&R | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1825 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Programmable Resolution 1-Wire Digital Thermometer With 4-Bit ID |
| DS1825U | 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1825U/T&R | 制造商:Maxim Integrated Products 功能描述:1-W PROGRAMMABLE DGT THERM 8P USOP - Tape and Reel |
| DS1825U/T&R | 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| DS1825U/TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Programmable Resolution 1-Wire Digital Thermometer With 4-Bit ID |
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