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参数资料
| 型号： | MAX31722MUA+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/15页 |
| 文件大小： | 761K |
| 描述： | IC THERMOMETER/STAT SPI-3W 8UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 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： | 比较器，寄存器库 |
| 输出类型： | 3 线/SPI? 串行 |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 1.7 V ~ 3.7 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 托盘 |
| 其它名称： | 90-31722+U00 |
Digital Thermometers and Thermostats
with SPI/3-Wire Interface
8
Figure 5. Temperature, T
HIGH
, and T
LOW
Register Format
Measuring Temperature
The core of the devices functionality is its direct-to-digital
temperature sensor. The devices measure temperature
through the use of an on-chip temperature measure-
ment technique with a -55NC to +125NC operating range.
The devices power up in a power-conserving shutdown
mode. After power-up, the devices can be placed in a
continuous conversion mode or in a one-shot conver-
sion mode. In the continuous conversion mode, the
devices continuously compute the temperature and
store the most recent result in the temperature register at
addresses 01h (LSB) and 02h (MSB). As conversions are
performed in the background, reading the temperature
register does not affect the conversion in progress. The
temperature value is not updated until the SPI or 3-wire
interface is inactive. In other words, CE must be inactive
for the temperature register to be updated with the most
recent temperature conversion value. In the one-shot
conversion mode, the devices perform one temperature
conversion and then return to the shutdown mode, storing
temperature in the temperature register. This conversion
mode is ideal for power-sensitive applications. Details on
how to change the setting after power-up are contained
in the Programming section.
The resolution of the temperature conversion is con-
figurable (9, 10, 11, or 12 bits) with 9 bits reading the
default state. This equates to a temperature resolution
of 0.5NC, 0.25NC, 0.125NC, or 0.0625NC. Following each
conversion, thermal data is stored in the temperature
register in twos complement format. The information
can be retrieved over the SPI or 3-wire interface with the
address set to the temperature register, 01h (LSB) and
then 02h (MSB). Table 1 describes the exact relation-
ship of output data to measured temperature. Table 1
assumes the devices are configured for 12-bit resolution.
If the devices are configured in a lower resolution mode,
those bits contain zeros. The data is transmitted serially
over the digital interface, MSB first for SPI communica-
tion and LSB first for 3-wire communication. The MSB of
the temperature register contains the sign (S) bit, denot-
ing whether the temperature is positive or negative.
Table 1. 12-Bit Resolution Temperature/Data Relationship
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
02h
MSB
(UNITS = NC)
LSB
2
-1
2
-2
2
-3
2
-4
0
0
0
0
01h
TEMPERATURE
(NC)
DIGITAL OUTPUT
(BINARY)
DIGITAL OUTPUT
(HEX)
+125
0111 1101 0000 0000
7D00
+25.0625
0001 1001 0001 0000
1910
+10.125
0000 1010 0010 0000
0A20
+0.5
0000 0000 1000 0000
0080
0
0000 0000 0000 0000
0000
-0.5
1111 1111 1000 0000
FF80
-10.125
1111 0101 1110 0000
F5E0
-25.0625
1110 0110 1111 0000
E6F0
-55
1100 1001 0000 0000
C900
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相关代理商/技术参数 |
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| MAX31722MUA+ | 功能描述:板上安装温度传感器 SPI/3-Wire Digital Temp Sensor 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 |
| MAX31722MUA+T | 功能描述:板上安装温度传感器 SPI/3-Wire Digital Temp Sensor 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 |
| MAX31723MUA+ | 功能描述:板上安装温度传感器 SPI/3-Wire Digital Temp Sensor 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 |
| MAX31723MUA+T | 功能描述:板上安装温度传感器 SPI/3-Wire Digital Temp Sensor 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 |
| MAX31723PMB1# | 功能描述:温度传感器开发工具 MAX31723 Peripheral Module RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流: |
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