ADM1032XRM-2REEL7 datasheet, PDF

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ADM1032XRM-2REEL7: DescriptionIC SPECIALTY ANALOG CIRCUIT, PDSO8, MICRO, SOIC-8, Analog IC:Other; CategoryAnalog mixed-signal IC The signal circuit; File Size177KB，16 Pages; ManufacturerADI; Websitehttps://www.analog.com

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ADM1032XRM-2REEL7 Overview

IC SPECIALTY ANALOG CIRCUIT, PDSO8, MICRO, SOIC-8, Analog IC:Other

ADM1032XRM-2REEL7 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	ADI
Parts packaging code	SOIC
package instruction	MICRO, SOIC-8
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	PROGRAMMABLE OVER/UNDER TEMPERATURE LIMITS/THERM LIMITS/THERM HYSTERESIS
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	S-PDSO-G8
JESD-609 code	e0
length	3 mm
Number of functions	1
Number of terminals	8
Maximum operating temperature	120 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	SQUARE
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
Temperature level	OTHER
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3 mm

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PRELIMINARY TECHNICAL DATA

FEATURES

On-chip and remote temperature sensing

Offset Registers for System Calibration

C Accuracy and Resolution on Local Channel

0.125

C Resolution/1

C Accuracy on Remote Channel

Fast (up to 32 Conversions/second)

Programmable Over/Under Temperature Limits

Programmable Fault Queue

Programmable THERM Limits

Programmable THERM Hysteresis

2-wire SMBus serial interface

Supports SMBus Alert

160µA Max Operating Current

3µA standby current

3V to 5.5V supply

Small 8-pin SO and uSO package

Optimized for PentiumIII



- Allows Reduced

Guardbanding

±1°C Local and Remote

System Temperature Monitor

ADM1032*

PRODUCT DESCRIPTION

The ADM1032 is an ACPI compliant two-channel digital

thermometer and under/over temperature alarm, intended

for use in personal computers and thermal management

systems. Optimized for the Pentium III, the higher 1°C

accuracy offered allows systems designers to safely reduce

temperature guardbanding and increase system

performance. The device can measure the temperature of

a microprocessor using a diode-connected NPN or PNP

transistor, which may be provided on-chip in the case of

the Pentium III or similar processors, or can be a low-cost

discrete device such as the 2N3906. A novel measurement

technique cancels out the absolute value of the transistor’s

base emitter voltage, so that no calibration is required.

The second measurement channel measures the output of

an on-chip temperature sensor, to monitor the

temperature of the device and its environment.

The ADM1032 communicates over a two-wire serial in-

terface compatible with System Management Bus

(SMBus

) standards. Under and over temperature limits

can be programmed into the device over the serial bus,

and an

ALERT

output signals when the on-chip or remote

temperature measurement is out of range. This output can

be used as an interrupt, or as an SMBus alert. The

THERM

output is a comparator output that allows CPU

clock throttling or on/off control of a cooling fan.

Applications

Desktop Computers

Notebook Computers

Smart Batteries

Industrial Controllers

Telecomms Equipment

Instrumentation

FUNCTIONAL BLOCK DIAGRAM

ADDRESS POINTER

CONVERSION RATE

ON-CHIP TEMP.

SENSOR

LOCAL TEMPERATURE

VALUE REGISTER

LOCAL TEMPERATURE

LOW LIMIT REGISTER

DIGITAL MUX

ANALOG MUX

DIG ITAL MUX

D+ 2

D- 3

A TO D

CONVERTER

BUSY

RUN/STANDBY

REMOTE TEMPERATURE

VALUE REGISTER

LIMIT

COMPARATORS

LOCAL TEMPERATURE

HIGH LIMIT REGISTER

REMOTE TEMPERATURE

LOW LIMIT REGISTER

REMOTE TEMPERATURE

HIGH LIMIT REGISTER

LOCAL THERM LIMIT

EXTERNAL THERM LIMIT

INTERNAL THERM LIMIT

CONFIGURATION

EXTERNAL DIODE OPEN-

CIRCUIT

STATUS REGISTER

INTERRUPT

MASKING

ALERT

THERM

SMBUS INTERFACE

ADM1032

GND

SDATA

SCLK

REV.PrL 03/2001

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.

PentiumIII

is a registered trademark of Intel Corporation

*Patents Pending

One Technology Way, P Box 9106, Norwood, MA 02062-9106, U.S.A.

.O.

Tel: 617/329-4700

World Wide Web Site: http://www.analog.com

Fax: 617/326-8703

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