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| 型号： | ADT7310TRZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/24页 |
| 文件大小： | 393K |
| 描述： | IC TEMP SENS 16B DGTL SPI 8SOIC |
| 标准包装： | 2,500 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 150°C |
| 精确度： | ±0.5°C |
| 拓扑： | ADC（三角积分型），振荡器，寄存器库 |
| 输出类型： | SPI? |
| 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 ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
Data Sheet
ADT7310
Rev. A | Page 13 of 24
TEMPERATURE DATA FORMAT
One LSB of the ADC corresponds to 0.0625癈 in 13-bit mode.
The ADC can theoretically measure a temperature range of
255癈, but the ADT7310 is guaranteed to measure a low value
temperature limit of 55癈 to a high value temperature limit
of +150癈. The temperature measurement result is stored in
the 16-bit temperature value register and is compared with the
high temperature limits stored in the T
CRIT
setpoint register and
the T
HIGH
setpoint register. It is also compared with the low
temperature limit stored in the T
LOW
setpoint register.
Temperature data in the temperature value register, the TCRIT
setpoint register, the THIGH setpoint register, and the TLOW
setpoint register are represented by a 13-bit twos complement
word. The MSB is the temperature sign bit. The three LSBs,
Bit 0 to Bit 2, on power-up, are not part of the temperature
conversion result and are flag bits for T
CRIT
, T
HIGH
, and T
LOW
.
Table 5 shows the 13-bit temperature data format without
Bit 0 to Bit 2.
The number of bits in the temperature data-word can be
extended to 16 bits, twos complement, by setting Bit 7 to 1
in the configuration register (Register Address 0x01). When
using a 16-bit temperature data value, Bit 0 to Bit 2 are not
used as flag bits and are instead the LSB bits of the temperature
value. The power-on default setting has a 13-bit temperature
data value.
Reading back the temperature from the temperature value register
requires a 2-byte read. Designers that use a 9-bit temperature
data format can still use the ADT7310 by ignoring the last four
LSBs of the 13-bit temperature value. These four LSBs are Bit 3
to Bit 6 in Table 5.
Table 5. 13-Bit Temperature Data Format
Temperature
Digital Output
(Binary) Bits[15:3]
Digital
Output (Hex)
55癈
1 1100 1001 0000
0x1C90
50癈
1 1100 1110 0000
0x1CE0
25癈
1 1110 0111 0000
0x1E70
0.0625癈
1 1111 1111 1111
0x1FFF
0癈
0 0000 0000 0000
0x000
+0.0625癈
0 0000 0000 0001
0x001
+25癈
0 0001 1001 0000
0x190
+50癈
0 0011 0010 0000
0x320
+125癈
0 0111 1101 0000
0x7D0
+150癈
0 1001 0110 0000
0x960
TEMPERATURE CONVERSION FORMULAS
16-Bit Temperature Data Format
Positive Temperature = ADC Code(dec)/128
Negative Temperature = (ADC Code(dec) 65,536)/128
where ADC Code uses all 16 bits of the data byte, including the
sign bit.
Negative Temperature = (ADC Code(dec) 32,768)/128
where the MSB is removed from the ADC code.
13-Bit Temperature Data Format
Positive Temperature = ADC Code(dec)/16
Negative Temperature = (ADC Code(dec) 8192)/16
where ADC Code uses all 13 bits of the data byte, including the
sign bit.
Negative Temperature = (ADC Code(dec) 4096)/16
where the MSB is removed from the ADC code.
10-Bit Temperature Data Format
Positive Temperature = ADC Code(dec)/2
Negative Temperature = (ADC Code(dec) 1024)/2
where ADC Code uses all 10 bits of the data byte, including the
sign bit.
Negative Temperature = (ADC Code(dec) 512)/2
where the MSB is removed from the ADC code.
9-Bit Temperature Data Format
Positive Temperature = ADC Code(dec)
Negative Temperature = ADC Code(dec) 512
where ADC Code uses all nine bits of the data byte, including
the sign bit.
Negative Temperature = ADC Code(dec) 256
where the MSB is removed from the ADC code.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADT7310TRZ-REEL7 | 功能描述:IC TEMP SENS 16B DGTL SPI 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-55°C ~ 125°C，外部传感器 精确度:±2°C 本地（最大），±3°C 远程（最大） 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:是 输出风扇:是 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:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND |
| ADT7311WTRZ | 制造商:Analog Devices 功能描述:AUTOMOTIVE, ?0.5C ACCURATE, 16-BIT DIGITAL SPI TEMPERATURE - Rail/Tube |
| ADT7311WTRZ-RL | 制造商:Analog Devices 功能描述:AUTOMOTIVE, ?0.5C ACCURATE, 16-BIT DIGITAL SPI TEMPERATURE - Tape and Reel |
| ADT7311WTRZ-RL7 | 制造商:Analog Devices 功能描述:AUTOMOTIVE, ?0.5C ACCURATE, 16-BIT DIGITAL SPI TEMPERATURE - Tape and Reel |
| ADT7312WCZ-PT7 | 功能描述:Temperature Sensor Digital, Local -55°C ~ 175°C 16 b 制造商:analog devices inc. 系列:- 包装:* 零件状态:在售 传感器类型:数字，本地 检测温度 - 本地:-55°C ~ 175°C 检测温度 - 远程:- 输出类型:SPI 电压 - 电源:2.7 V ~ 5.5 V 分辨率:16 b 特性:单触发，可编程极限，可编程分辨率，关断模式 精度 - 最高（最低）:±1°C（±1.5°C） 测试条件:-55°C ~ 175°C 工作温度:-55°C ~ 175°C 安装类型:表面贴装 封装/外壳:模具 供应商器件封装:* 标准包装:1 |
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