ADM1024 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADM1024 Datasheet PDF : 32 Pages
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FEATURES
Up to 9 Measurement Channels
Inputs Programmable-to-Measure Analog Voltage, Fan
Speed, or External Temperature
External Temperature Measurement with Remote
Diode (2 Channels)
On-Chip Temperature Sensor
5 Digital Inputs for VID Bits
LDCM Support
System Management Bus (SMBus)
Chassis Intrusion Detect
Interrupt and Overtemperature Outputs
Programmable RESET Input Pin
Shutdown Mode to Minimize Power Consumption
Limit Comparison of All Monitored Values
System Hardware Monitor with
Remote Diode Thermal Sensing
ADM1024
APPLICATIONS
Network Servers and Personal Computers
Microprocessor Based Office Equipment
Test Equipment and Measuring Instruments
GENERAL DESCRIPTION
The ADM1024 is a complete system hardware monitor for
microprocessor based systems, providing measurement and limit
comparison of various system parameters. Eight measurement
inputs are provided; three are dedicated to monitoring 5 V and
12 V power supplies and the processor core voltage. The
ADM1024 can monitor a fourth power supply voltage by mea-
suring its own VCC. One input (two pins) is dedicated to a
remote temperature-sensing diode. Two more pins can be
(continued on page 7)
FUNCTIONAL BLOCK DIAGRAM
VID0/IRQ0
VID1/IRQ1
VID2/IRQ2
VID3/IRQ3
VID4/IRQ4
FAN1/AIN1
FAN2/AIN2
+VCCP1
+2.5VIN / D2+
+5VIN
+12VIN
VCCP2 / D2 –
D1+
D1–
VCC
VCC
VID0–3 AND
FAN DIVISOR
REGISTER
100k⍀
PULL-UPS
VID4 AND
DEVICE ID
REGISTER
FAN SPEED
COUNTER
ADM1024
ADDRESS
POINTER
REGISTER
INPUT
ATTENUATORS
AND
ANALOG
MULTIPLEXER
TEMPERATURE
CONFIGURATION
REGISTER
POWER TO CHIP
BAND GAP
TEMPERATURE
SENSOR
10-BIT ADC
2.5V
BAND GAP
REFERENCE
GND
REV. B
SERIAL BUS
INTERFACE
CHANNEL
MODE
REGISTER
VALUE AND
LIMIT
REGISTERS
LIMIT
COMPARATORS
INTERRUPT
STATUS
REGISTERS
INT MASK
REGISTERS
INTERRUPT
MASKING
CONFIGURATION
REGISTERS
ANALOG
OUTPUT
REGISTER AND
8-BIT DAC
CHASSIS
INTRUSION
CLEAR
REGISTER
NTEST OUT/ADD
SDA
SCL
VCC
100k⍀
VCC
100k⍀
CI
THERM
INT
VCC
100k⍀
NTEST IN/AOUT
RESET
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2004 Analog Devices, Inc. All rights reserved.
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