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参数资料
| 型号： | DS1821T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/19页 |
| 文件大小： | 793K |
| 描述： | IC THERMOMETER/STAT PROG TO-220 |
| 标准包装： | 1 |
| 系列： | 1-Wire® |
| 功能： | 温度计，恒温计 |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±1°C（最小值） |
| 拓扑： | 比较器，寄存器库 |
| 输出类型： | 数字 |
| 输出警报： | 无 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220-3 |
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FEATURES
? Requires no external components
? Unique 1-Wire
?/DIV>
interface requires only one
port pin for communication
? Operates over a -55癈 to +125癈 (-67癋 to
+257癋) temperature range
? Functions as a standalone thermostat with
user-definable trip-points
? Provides 8-bit (1癈 resolution) centigrade
temperature measurements
? Accuracy is ?癈 over 0癈 to +85癈 range
? Converts temperature to a digital word in
1 second (max)
? Available in 3-pin TO92 and 8-pin SO
packages
? Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
system
PIN ASSIGNMENT
PIN DESCRIPTION
GND - Ground
DQ
- Data In/Out and Thermostat Output
V
DD
- Power Supply Voltage
NC
- No Connect
DESCRIPTION
The DS1821 can function as a standalone thermostat with user-programmable trip-points or as 8-bit
temperature sensor with a 1-Wire digital interface. The thermostat trip-points are stored in nonvolatile
memory, so DS1821 units can be programmed prior to system insertion for true standalone operation.
The DS1821 has an operating temperature range of 55癈 to +125癈 and is accurate to ?癈 over a range
of 0癈 to +85癈. Communication with the DS1821 is accomplished through the open-drain DQ pin; this
pin also serves as the thermostat output.
DS1821
Programmable Digital Thermostat and Thermometer
8-pin 208-mil SO
D 1 21
1
B TT M IE
2 3
DS1821
1
2 3
TO92
(DS1821C)
6
3
1
2
4
7
5
D
NC
V
N
NC
1-Wire is a registered trademark of Maxim Integrated
Products, Inc.
1 - 22 R v 12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1822 | 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/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 |
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