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ADM1025ARQ

更新时间： 2024-11-17 22:05:19
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管监控输入元件PC
页数 文件大小 规格书
16页 164K
描述
Low-Cost PC Hardware Monitor ASIC

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ADM1025ARQ 数据手册

 浏览型号ADM1025ARQ的Datasheet PDF文件第2页浏览型号ADM1025ARQ的Datasheet PDF文件第3页浏览型号ADM1025ARQ的Datasheet PDF文件第4页浏览型号ADM1025ARQ的Datasheet PDF文件第5页浏览型号ADM1025ARQ的Datasheet PDF文件第6页浏览型号ADM1025ARQ的Datasheet PDF文件第7页 
Low-Cost PC  
Hardware Monitor ASIC  
a
ADM1025/ADM1025A*  
FEATURES  
PRODUCT DESCRIPTION  
Up to Eight Measurement Channels  
Five Inputs to Measure Supply Voltages  
VCC Monitored Internally  
External Temperature Measurement with Remote Diode  
On-Chip Temperature Sensor  
The ADM1025/ADM1025A is a complete system hardware  
monitor for microprocessor-based systems, providing measure-  
ment and limit comparison of various system parameters. Five  
voltage measurement inputs are provided, for monitoring 2.5 V,  
3.3 V, 5 V and 12 V power supplies and the processor core  
voltage. The ADM1025/ADM1025A can monitor a sixth power  
supply voltage by measuring its own VCC. One input (two pins) is  
dedicated to a remote temperature-sensing diode, and an on-chip  
temperature sensor allows ambient temperature to be moni-  
tored. The ADM1025A has open-drain VID inputs while the  
ADM1025 has on-chip 100 kΩ pull-ups on the VID inputs.  
Five Digital Inputs for VID Bits  
Integrated 100 k⍀ Pull-Ups on VID Pins (ADM1025 Only)  
LDCM Support  
I2C®-Compatible System Management Bus (SMBus)  
Programmable RESET Output Pin  
Programmable INT Output Pin  
Configurable Offset for Internal/External Channel  
Shutdown Mode to Minimize Power Consumption  
Limit Comparison of all Monitored Values  
Measured values and in/out of limit status can be read out via  
an I2C-compatible serial System Management Bus. The device  
can be controlled and configured over the same serial bus. The  
device also has a programmable INT output to indicate under-  
voltage, overvoltage and over-temperature conditions.  
APPLICATIONS  
Network Servers and Personal Computers  
Microprocessor-Based Office Equipment  
Test Equipment and Measuring Instruments  
The ADM1025/ADM1025A’s 3.0 V to 5.5 V supply voltage  
range, low supply current, and I2C-compatible interface make  
it ideal for a wide range of applications. These include hardware  
monitoring and protection applications in personal computers,  
electronic test equipment, and office electronics.  
FUNCTIONAL BLOCK DIAGRAM  
V
DD  
VID0  
VID1  
VID2  
VID3  
ADD/RST/INT/NTO  
SERIAL BUS  
SDA  
SCL  
INTERFACE  
VID0–3  
REGISTER  
ADM1025/  
ADM1025A  
100k⍀  
PULLUPS  
300k⍀  
VID4  
REGISTER  
12V /VID4  
IN  
VALUE AND  
V
POWER TO CHIP  
CC  
LIMIT  
REGISTERS  
LIMIT  
ADDRESS  
POINTER  
REGISTER  
COMPARATORS  
V
CCPIN  
INPUT  
ATTENUATORS  
AND  
MEASUREMENT  
STATUS  
REGISTERS  
2.5V  
3.3V  
5V  
IN  
IN  
IN  
ANALOG  
MULTIPLEXER  
ADC  
OFFSET  
REGISTER  
D+  
2.5V  
BANDGAP  
REFERENCE  
D–/NTI  
CONFIGURATION  
REGISTER  
BANDGAP  
TEMPERATURE  
SENSOR  
GND  
*Patent Pending.  
I2C is a registered trademark of Philips Corporation.  
REV. A  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 2000  
1234567...16

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ADM1025ARQ 替代型号

型号 品牌 替代类型 描述 数据表
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