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参数资料
| 型号： | DS1822 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Switch/Digital Output Temperature Sensor |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| 封装： | TO92-3 |
| 文件页数： | 1/21页 |
| 文件大小： | 222K |
| 代理商： | DS1822 |
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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.
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| DS18B20-PAR | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, ROUND, THROUGH HOLE MOUNT |
| DS18B20P | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1822/T&R | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1822+ | 功能描述:板上安装温度传感器 1-Wire Digital Thermometer RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1822+PAR | 功能描述:板上安装温度传感器 1-Wire Digital Thermometer RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| DS1822+T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Econo 1-Wire Digital Thermometer |
| DS1822+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 1-WIRE 3PIN TO-92 - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER ECONO DIG TO-92 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors 1-Wire Digital Thermometer |
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