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| 型号： | DS1822+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/21页 |
| 文件大小： | 0K |
| 描述： | IC THERMOMETER ECONO DIG TO-92 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 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： | TO-226-3、TO-92-3（TO-226AA）成形引线 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 带卷 (TR) |
AVAILAB
LE
DS1822
Econo 1-Wire Digital
Thermometer
Unique 1-Wire interface requires only one
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.
8-Pin 150mil SO
(DS1822Z)
User-definable nonvolatile (NV) alarm
settings.
Alarm search command identifies and
PIN DESCRIPTION
Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
monitoring systems inside buildings, equipment or machinery, and process monitoring and control
systems. is a trademark of Maxim Integrated Products, Inc.
FEATURES PIN ASSIGNMENT
?
port pin for communication. DALLAS NC 1 8 NC
1822
NC 2 7 NC
1 2 3
V DD 3 6 NC
DQ 4 5 GND
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.)
1 2 3
(BOTTOM VIEW)
addresses devices whose temperature is TO-92
outside of programmed limits (temperature (DS1822)
alarm condition).
Software compatible with the DS18B20.
Functional Diagrams
GND - Ground
DQ - Data In/Out
system. V DD - 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
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP
1-Wire is a registered trademark of Dallas Semiconductor.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
101107
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1822-W | 制造商:Maxim Integrated Products 功能描述:1-WIRE DIGITAL THERMOMETER SOIC - Rail/Tube |
| DS1822Z | 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 |
| DS1822Z/T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Econo 1-Wire Digital Thermometer |
| DS1822Z/T&R | 制造商:Maxim Integrated Products 功能描述:1-WIRE DIGITAL THERMOMETER SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER ECONO DIG 8-SOIC |
| DS1822Z/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 |
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