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參數(shù)資料
| 型號： | LM95214 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Quad Remote Diode and Local Temperature Sensor with SMBus Interface |
| 中文描述： | 四遠(yuǎn)程二極管與本地溫度傳感器，帶有SMBus接口 |
| 文件頁數(shù)： | 12/38頁 |
| 文件大?。?/td> | 448K |
| 代理商： | LM95214 |
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30006128
FIGURE 3. Digital Filter Response in a typical Intel
processor on a 65 nm or 90 nm process. The filter curves
were purposely offset for clarity.
Figure 3
shows the filter in use in a typical system. Note that
the two curves have been purposely offset for clarity. Inserting
the filter does not induce an offset as shown.
1.5 FAULT QUEUE
In order to suppress erroneous TCRIT1,TCRIT2 and
TCRIT3 triggering the LM95214 incorporates a Fault Queue
for the unfiltered remote channels 3 and 4. The Fault Queue
acts to ensure the remote temperature measurement of these
channels is genuinely beyond the corresponding Tcrit limit by
not triggering until three consecutive out of limit measure-
ments have been made, see
Figure 4
for an example. The
Fault Queue defaults on upon power-up. The fault queue for
channels 3 and 4 can be turned ON or OFF via bits 0 and 1
of the Configuration Register. When the fault queue is en-
abled, the TCRIT1, TCRIT2 and TCRIT3 pins will be triggered
if the temperature is above the Tcrit limit for 3 consecutive
conversions and the corresponding mask bit is 0 in the TCRIT
Mask registers. Similarly the temperature needs to be below
the Tcrit limit minus the hysteresis value for three consecutive
conversions for the TCRIT1, TCRIT2 and TCRIT3 pins to de-
activate.
30006129
FIGURE 4. Fault Queue Response Diagram (with 0°C
hysteresis)
1.6 TEMPERATURE DATA FORMAT
Temperature data can only be read from the Local and Re-
mote Temperature value registers. The data format for all
temperature values is left justified 16-bit word available in two
8-bit registers. Unused bits will always report "0". All temper-
ature data is clamped and will not roll over when a tempera-
ture exceeds full-scale value.
Remote temperature data for all channels can be represented
by an 11-bit, two's complement word or unsigned binary word
with an LSb (Least Significant Bit) equal to 0.125°C.
11-bit, 2's complement (10-bit plus sign)
Temperature
Digital Output
Binary
0111 1101 0000 0000
0001 1001 0000 0000
0000 0001 0000 0000
0000 0000 0010 0000
0000 0000 0000 0000
1111 1111 1110 0000
1111 1111 0000 0000
1110 0111 0000 0000
1100 1001 0000 0000
Hex
7D00h
1900h
0100h
0020h
0000h
FFE0h
FF00h
E700h
C900h
+125°C
+25°C
+1°C
+0.125°C
0°C
0.125°C
1°C
25°C
55°C
11-bit, unsigned binary
Temperature
Digital Output
Binary
1111 1111 1110 0000
1111 1111 0000 0000
1100 1001 0000 0000
0111 1101 0000 0000
0001 1001 0000 0000
0000 0001 0000 0000
Hex
FFE0h
FF00h
C900h
7D00h
1900h
0100h
+255.875°C
+255°C
+201°C
+125°C
+25°C
+1°C
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM95214CISD | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95214CISD/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95214CISDX | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95214CISDX/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95214EB/NOPB | 功能描述:溫度傳感器開發(fā)工具 LM95214EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
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