參數(shù)資料
型號： MAX6680
廠商： Maxim Integrated Products, Inc.
元件分類： 溫度/濕度傳感器
英文描述： Fail-Safe Remote/Local Temperature Sensors with SMBus Interface
中文描述： ±1°C、具有失效保護的遠端/本地溫度傳感器，帶有SMBus接口
文件頁數(shù)： 1/17頁
文件大小： 194K
代理商： MAX6680
General Description
The MAX6680/MAX6681 are precise, two-channel digi-
tal thermometers. Each accurately measures the tem-
perature of its own die and one remote PN junction and
reports the temperature on a 2-wire serial interface. The
remote junction can be a diode-connected transistor
like the low-cost NPN type 2N3904 or PNP type
2N3906. The remote junction can also be a common-
collector PNP, such as a substrate PNP of a micro-
processor.
The MAX6680/MAX6681 include pin-programmable
default temperature thresholds for the
OVERT
output,
which provides fail-safe clock throttling or system shut-
down. In addition, the devices are pin programmable to
select whether the
OVERT
output responds to either the
local, remote, or both temperatures.
The 2-wire serial interface accepts standard System
Management Bus (SMBus) commands such as Write
Byte, Read Byte, Send Byte, and Receive Byte to read
the temperature data and program the alarm thresholds
and conversion rate. The MAX6680/MAX6681 can func-
tion autonomously with a programmable conversion
rate, which allows the control of supply current and
temperature update rate to match system needs. For
conversion rates of 4Hz or less, the remote sensor tem-
perature can be represented in extended mode as 10
bits + sign with a resolution of 0.125°C. When the con-
version rate is 8Hz, output data is 7 bits + sign with a
resolution of 1°C. The MAX6680/MAX6681 also include
an SMBus timeout feature to enhance system reliability.
The MAX6681 is an upgrade to the MAX6654. The
MAX6680/MAX6681 remote accuracy is ±1°C with no
calibration needed. They are available in a 16-pin
QSOP package and operate throughout the -55°C to
+125°C temperature range.
Applications
Features
o
Two Alarm Outputs:
ALERT
and
OVERT
o
Pin-Programmable Threshold for
OVERT
Limit
o
Programmable Under/Overtemperature
ALERT
Limit
o
Dual Channel: Measures Remote and Local
Temperature
o
11-Bit, 0.125°C Resolution for Remote Temperature
Measurements
o
High Accuracy ±1°C (max) from +60°C to +100°C
(Remote)
o
No Calibration Required
o
SMBus/I
2
C-Compatible Interface
o
SMBus Timeout Prevents SMBus Lockup
M
±1°C Fail-Safe Remote/Local Temperature
Sensors with SMBus Interface
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
CLOCK
DATA
TO SYSTEM
SHUTDOWN
STBY
CRIT1
CRIT0
GND
OVERT
SMBCLK
RESET
SMBDATA
V
CC
INTERRUPT
TO
μ
P
0.1
μ
F
2200pF
DXN
MICROPROCESSOR
DXP
200
10k
EACH
ALERT
3.3V
INT_SEL
ADD0
SENS_SEL
ADD1
MAX6680
MAX6681
Typical Operating Circuit
Ordering Information
19-2305; Rev 0; 4/02
PART
TEMP RANGE
-55
°
C to +125
°
C
-55
°
C to +125
°
C
PIN-PACKAGE
16 QSOP
16 QSOP
MAX6680
MEE
MAX6681
MEE
SMBus is a trademark of Intel Corp.
I
2
C is a trademark of Philips Corp.
Pin Configurations appear at end of data sheet.
Desktop Computers
Notebook
Computers
Servers
Thin Clients
Workstations
相關PDF資料
PDF描述
MAX6684 QUADRUPLE 2-INPUT POSITIVE-OR GATES 14-CDIP -55 to 125
MAX6684ESA QUADRUPLE 2-INPUT POSITIVE-OR GATES 14-CFP -55 to 125
MAX6690 2∑C Accurate Remote/Local Temperature Sensor with SMBus Serial Interface
MAX6690MEE QUADRUPLE 2-INPUT POSITIVE-OR GATES 14-CFP -55 to 125
MAX6715 8-Bit Shift Register 16-PDIP -40 to 125
相關代理商/技術參數(shù)
參數(shù)描述
MAX6680MEE 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6680MEE+ 功能描述:板上安裝溫度傳感器 Fail-Safe Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6680MEE+T 功能描述:板上安裝溫度傳感器 Fail-Safe Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6680MEE-T 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
MAX6681EVKIT 功能描述:板上安裝溫度傳感器 Evaluation System/Evaluation Kit for the MAX6681 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
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