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參數(shù)資料
| 型號(hào)： | ADT7317ARQ |
| 廠商： | Analog Devices, Inc. |
| 元件分類(lèi)： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:37; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:15-35 |
| 中文描述： | SPI/I2C兼容，10位數(shù)字溫度傳感器和四DAC的電壓輸出12/10/8-Bit |
| 文件頁(yè)數(shù)： | 19/32頁(yè) |
| 文件大?。?/td> | 340K |
| 代理商： | ADT7317ARQ |
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ADT7316/7317/7318
–
19
–
REV. PrN
PRELIMINARY TECHNICAL DATA
(V
REF
= 2.25 V) then this corresponds to 0V representing -
40
°
C and 1.48V representing +127
°
C. This of course will
give an upper deadband between 1.48V and V
REF
.
The Internal and External Analog Temperature Offset
registers can be used to vary this upper deadband and con-
sequently the temperature that 0V corresponds to. Tables
4 and 5 give examples of how this is done using a DAC
output voltage span of V
REF
and 2V
REF
respectivily. Simply
write in the temperature value, in 2
’
s complement format,
that you want 0V to start at. For example, if you are using
the DAC A output and you want 0V to start at -40
°
C then
program D8h into the Internal Analog Temperature Off-
set register (address 21h). This is an 8-bit register and
thus only has a temperature offset resolution of 1
°
C for all
device models. Use the following formulas to determine
the value to program into the offset registers.
Negative temperatures : -
Offset Register Code(d)* = (0V Temp) + 128
*D7 of Offset Register Code is set to 1 for negative temperatures.
Example : -
Offset Register Code(d) = (-40) + 128
= 88d = 58h
Since a negative temperature has been inputted into the
equation, DB7 (MSB) of the Offset Register code is set to
a 1. Therefore 58h becomes D8h.
58h + DB7(1)
D8h
Positive temperatures : -
Offset Register Code(d) = 0V Temp
Example : -
Offset Register Code (d) = 10d = 0Ah
Table 4. Thermal Voltage Output (0V-V
REF
)
O/P Voltage
Default °C
Max °C
Sample °C
0V
-40
-128
0
0.5V
+17
-71
+56
1V
+73
-15
+113
1.12V
+87
-1
+127
1.47V
+127
+39
UDB*
1.5V
UDB*
+42
UDB*
2V
UDB*
+99
UDB*
2.25V
UDB*
+127
UDB*
* Upper deadband has been reached. DAC output is not capable of increasing.
Reference Figure 6.
Table 5. Thermal Voltage Output, (0V-2V
REF
)
O/P Voltage
Default °C
Max °C
Sample °C
0V
-40
-128
0
0.25V
-26
-114
14
0.5V
+12
-100
+28
0.75V
+3
-85
43
1V
+17
-71
+57
1.12V
+23
-65
+63
1.47V
+43
-45
+83
1.5V
+45
-43
+85
2V
+73
-15
+113
2.25V
+88
0
+127
2.5V
+102
+14
UDB*
2.75V
+116
+28
UDB*
3V
UDB*
+42
UDB*
3.25V
UDB*
+56
UDB*
3.5V
UDB*
+70
UDB*
3.75V
UDB*
+85
UDB*
4V
UDB*
+99
UDB*
4.25V
UDB*
+113
UDB*
4.5V
UDB*
+127
UDB*
* Upper deadband has been reached. DAC output is not capable of increasing.
Reference Figure 6.
The following equation is used to work out the various
temperatures for the corresponding 8-bit DAC output :-
8-Bit Temp = (DAC O/P
÷
1 LSB) + ( 0V Temp)
For example, if the output is 1.5V, V
REF
= 2.25 V, 8-bit
DAC has an LSB size = 2.25V/255 = 8.82x10
-3
, and 0V
Temp is at -128
°
C then the resultant temperature works
out to be :-
(1.5
÷
8.82x10
-3
) + (-128) = +42
°
C
The following equation is used to work out the various
temperatures for the corresponding 10-bit DAC output :-
10-Bit Temp = ((DAC O/P
÷
1 LSB)x0.25) + ( 0V Temp)
For example, if the output is 0.4991V, V
REF
= 2.25 V, 10-
bit DAC has an LSB size = 2.25V/1024 = 2.197x10
-3
, and
0V Temp is at -40
°
C then the resultant temperature works
out to be :-
((0.4991
÷
2.197x10
-3
)x0.25) + (-40) = +16.75
°
C
Figure 14 shows a graph of DAC output vs temperature
for a V
REF
= 2.25 V.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADT7318 | Circular Connector; No. of Contacts:37; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:15-35 |
| ADT7318ARQ | Circular Connector; No. of Contacts:37; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:15-35 |
| ADT7411 | SPI/I2C compatible，10-bit digital temperature sensor and 8-channel ADC |
| ADT7411ARQ | SPI/I2C Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC |
| ADT7411ARQ-REEL | Circular Connector; No. of Contacts:26; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:17-26 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADT7317ARQ-REEL | 制造商:Analog Devices 功能描述:Digital Temperature Sensor 16-Pin QSOP T/R 制造商:Rochester Electronics LLC 功能描述:DTS, 10-BIT QUAD VOLTAGE OUTPUT DAC I.C. - Tape and Reel |
| ADT7317ARQ-REEL7 | 制造商:Analog Devices 功能描述:Digital Temperature Sensor 16-Pin QSOP T/R 制造商:Rochester Electronics LLC 功能描述:DTS, 10-BIT QUAD VOLTAGE OUTPUT DAC I.C. - Tape and Reel |
| ADT7317ARQZ | 功能描述:IC SENSOR TEMP QUAD DAC 16QSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)溫度:-55°C ~ 125°C，外部傳感器 精確度:±2°C 本地（最大），±3°C 遠(yuǎn)程（最大） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類(lèi)型:I²C?/SMBus? 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱(chēng):MIC284-2BMMTRMIC284-2BMMTR-ND |
| ADT7317ARQZ-REEL | 功能描述:IC SENSOR TEMP QUAD DAC 16QSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)溫度:-55°C ~ 125°C，外部傳感器 精確度:±2°C 本地（最大），±3°C 遠(yuǎn)程（最大） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類(lèi)型:I²C?/SMBus? 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱(chēng):MIC284-2BMMTRMIC284-2BMMTR-ND |
| ADT7317ARQZ-REEL7 | 功能描述:IC SENSOR TEMP QUAD DAC 16QSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)溫度:-55°C ~ 125°C，外部傳感器 精確度:±2°C 本地（最大），±3°C 遠(yuǎn)程（最大） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類(lèi)型:I²C?/SMBus? 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱(chēng):MIC284-2BMMTRMIC284-2BMMTR-ND |
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