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参数资料
| 型号： | DS7505U+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/14页 |
| 文件大小： | 197K |
| 描述： | IC DGTL THERMOMETER 2WIRE 8-USOP |
| 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： | ±2°C（最小值） |
| 拓扑： | ADC（三角积分型），比较器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 无 |
| 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： | 管件 |
Digital Thermometer and Thermostat
_______________________________________________________________________________________ 5
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
MS Byte
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LS Byte
2
-1
2
-2
2
-3
2
-4
0
0
0
0
Figure 3. Temperature, T
OS
, and T
HYST
Register Format
Table 1. 12-Bit Resolution Temperature/Data Relationship
Operation疢easuring
Temperature
The DS7505 measures temperature using a bandgap
temperature-sensing architecture. An on-board delta-
sigma analog-to-digital converter (ADC) converts the
measured temperature to a digital value that is calibrat-
ed in degrees Celsius; for Fahrenheit applications a
lookup table or conversion routine must be used. The
DS7505 is factory-calibrated and requires no external
components to measure temperature.
The DS7505 can be configured to power up either
automatically converting temperature or in a low-power
standby state. The preferred power-up mode can be
set using the SD bit in the configuration register as
explained in the Configuration Register section. The
resolution of the digital output data is user-configurable
to 9, 10, 11, or 12 bits, corresponding to temperature
increments of 0.5癈, 0.25癈, 0.125癈, and 0.0625癈,
respectively. The factory default resolution at power-up
is 9 bits (R1 = 0, R0 = 0), however this can be pro-
grammed to 10, 11, or 12 bits using the R0 and R1 bits
in the configuration register as explained in the
Configuration Register section. Note that the conver-
sion time doubles for each additional bit of resolution.
After each temperature measurement and analog-to-
digital (A/D) conversion, the DS7505 stores the temper-
ature as a 16-bit twos complement number in the
2-byte temperature register (see Figure 3). The sign bit
(S) indicates if the temperature is positive or negative:
for positive numbers S = 0 and for negative numbers S
= 1. The most recently converted digital measurement
can be read from the temperature register at any time.
Since temperature conversions are performed in the
background, reading the temperature register does not
affect the operation in progress.
Bits 3 through 0 of the temperature register are hard-
wired to 0. When the DS7505 is configured for 12-bit
resolution, the 12 MSBs (bits 15 through 4) of the tem-
perature register contain temperature data. For 11-bit
resolution, the 11 MSBs (bits 15 through 5) of the tem-
perature register contain data, and bit 4 reads out as 0.
Likewise, for 10-bit resolution, the 10 MSBs (bits 15
through 6) contain data, and for 9-bit the 9 MSBs (bits
15 through 7) contain data and all unused LSBs con-
tains 0s. Table 1 gives examples of 12-bit resolution dig-
ital output data and the corresponding temperatures.
TEMPERATURE (?/SPAN>C)
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 |
参数描述 |
|---|---|
| DS7505U+ | 功能描述:板上安装温度传感器 Thermometer & Thermostat 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 |
| DS7505U+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL THERMOMETER AND THERMOSTAT 8USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC DGTL THERMOMETER 2WIRE 8-USOP 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Thermometer & Thermostat |
| DS7505U+T&R | 功能描述:板上安装温度传感器 Thermometer & Thermostat 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 |
| DS7505UR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Digital Thermometer and Thermostat |
| DS7505UT | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Digital Thermometer and Thermostat |
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