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参数资料
| 型号： | DS1775R7+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 3/14页 |
| 文件大小： | 394K |
| 描述： | IC THERMOM/STAT DIG 111 SOT-23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 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： | ±3°C（最小值） |
| 拓扑： | ADC，比较器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 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： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
DS1775
3 of 14
Figure 1. Block Diagram
OPERATION
Measuring Temperature
The core of DS1775 functionality is its direct-to-digital temperature sensor. The DS1775 measures
temperature through the use of an on-chip temperature measurement technique with an operating range
from -55癈 to +125癈. Temperature conversions are initiated upon power-up, and the most recent result
is stored in the thermometer register. Conversions are performed continuously unless the user intervenes
by altering the configuration register to put the DS1775 into a shutdown mode. Regardless of the mode
used, the digital temperature can be retrieved from the temperature register by setting the pointer to that
location (00h, power-up default). The DS1775 power-up default has the sensor automatically performing
9-bit conversions continuously. Details on how to change the settings after power-up are contained in the
Programming section.
The resolution of the temperature conversion is configurable (9, 10, 11, or 12 bits), with 9-bit readings the
default state. This equates to a temperature resolution of 0.5癈, 0.25癈, 0.125癈, or 0.0625癈. Following
each conversion, thermal data is stored in the thermometer register in twos complement format; the
information can be retrieved over the 2-wire interface with the device pointer set to the temperature
register. Table 2 describes the exact relationship of output data to measured temperature. The table
assumes the DS1775 is configured for 12-bit resolution; if the device is configured in a lower resolution
mode, those bits contain zeros. The data is transmitted serially over the 2-wire serial interface, MSb first.
The MSb of the temperature register contains the sign (S) bit, denoting whether the temperature is
positive or negative. For Fahrenheit usage, a lookup table or conversion routine must be used.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1775R7-U | 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 |
| DS1775R-U | 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 |
| DS1776 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PI-Bus Transceiver |
| DS1776E/883 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PI-Bus Transceiver |
| DS1776J/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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