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參數(shù)資料
| 型號： | MAX6634 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 12-Bit Plus Sign Temperature Sensors with SMBus/I2C-Compatible Serial Interface(1SMBus/IIC兼容串行接口的帶符號位12位溫度傳感器) |
| 中文描述： | 12位 + 符號位溫度傳感器，帶有SMBus/I²C兼容串行接口 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 210K |
| 代理商： | MAX6634 |
M
bit. Registers T
HIGH
and T
LOW
are 16 bits, read/write,
and contain values that trigger
ALERT
and
OVERT
.
Register T
HYST
is 16 bits, read/write, and contains the
values by which the temperature must rise or fall
beyond T
HIGH
, T
LOW
, or T
MAX
, before
ALERT
or
OVERT
deassert.
Temperature Conversion
An on-chip bandgap reference produces a signal pro-
portional to absolute temperature (PTAT), as well as the
temperature-stable reference voltage necessary for the
analog-to-digital conversion. The PTAT signal is digi-
tized by the on-board ADC to a resolution of 0.0625
°
C.
The resulting digital value is placed in the Temperature
register. The temperature conversion runs continuously
and asynchronously from the serial interface at a rate of
500ms per conversion. When the Temperature register
is read, the conversion in progress is aborted. The bus
transaction is completed by a stop condition.
Fault Queue (MAX6634/MAX6635)
A programmable fault queue on the MAX6634/
MAX6635 eliminates spurious alarm activity in noisy
environments. The queue sets the number of consecu-
tive out-of-tolerance temperature readings that must
occur before the
ALERT
or
OVERT
alarm outputs are
toggled. An out-of-tolerance reading is above T
HIGH
or
T
MAX
or below T
LOW
. The fault queue depth defaults to
1 at power-up and may be programmed
—
through the
Configuration register
—
to four consecutive conver-
sions. Any time the conversion result is in tolerance,
and the particular alarm output is not asserted, the
queue is cleared, even if it contains some out-of-toler-
ance counts. Additionally, the fault queue automatically
clears at power-up and in shutdown. Whenever the
fault queue is cleared, the alarm outputs are deassert-
ed. Figure 9 is the alarm output and reset diagram.
12-Bit Plus Sign Temperature Sensors with
SMBus/I
2
C-Compatible Serial Interface
10
______________________________________________________________________________________
*
*
*
*
*
*IN INTERRUPT MODE, READING THE DEVICE CLEARS ALERT.
OTHERWISE, IT WOULD REMAIN LOW INDEFINITELY UNTIL CLEARED.
T
MAX
T
MAX
- T
HYST
T
HIGH
T
HIGH
- T
HYST
T
LOW
T
LOW
+ T
HYST
ALERT
COMPARATOR MODE
ALERT
INTERRUPT MODE
OVERT
COMPARATOR MODE
ONLY
Figure 9. Alarm Output and Reset Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6635 | 12-Bit Plus Sign Temperature Sensors with SMBus/I2C-Compatible Serial Interface(1SMBus/IIC兼容串行接口的帶符號位12位溫度傳感器) |
| MAX6633 | 12-Bit Plus Sign Temperature Sensors with SMBus/I2C-Compatible Serial Interface(1SMBus/IIC兼容串行接口的帶符號位12位溫度傳感器) |
| MAX6633MSA | 12-Bit Plus Sign Temperature Sensors with SMBus/I2C-Compatible Serial Interface |
| MAX6634MSA | 4-Bit Binary Counter 14-CDIP -55 to 125 |
| MAX6635MSA | 4-Bit Binary Counter 14-CDIP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6634MSA | 功能描述:板上安裝溫度傳感器 12-Bit + Sign Temperature Sensor 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 |
| MAX6634MSA+ | 功能描述:板上安裝溫度傳感器 12-Bit + Sign Temperature Sensor 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 |
| MAX6634MSA+T | 功能描述:板上安裝溫度傳感器 12-Bit + Sign Temperature Sensor 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 |
| MAX6634MSA-T | 功能描述:板上安裝溫度傳感器 12-Bit + Sign Temperature Sensor 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 |
| MAX6635EVKIT+ | 功能描述:板上安裝溫度傳感器 MAX6635 Eval Kit 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 |
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