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ADM1020

8-Lead, Low-Cost, System Temperature Monitor

Analog Devices 

ADM1020

ABSOLUTE MAXIMUM RATINGS*

Positive Supply Voltage (VDD) to GND . . . . . . . . –0.3 V, +6 V

D+, ADD . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD + 0.3 V

D– to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V, +0.6 V

SCLK, SDATA, ALERT . . . . . . . . . . . . . . . . . . . . . –0.3 V, +6 V

Input Current, SDATA . . . . . . . . . . . . . . . . . . . . . –1, ± 50 mA

Input Current, D– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1 mA

ESD Rating, all Pins (Human Body Model) . . . . . . . . 4000 V

Continuous Power Dissipation

Up to +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW

Derating above +70°C . . . . . . . . . . . . . . . . . . . . 6.7 mW/°C

Operating Temperature Range . . . . . . . . . . –55°C to +125°C

Maximum Junction Temperature (TJ max) . . . . . . . . . +150°C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Lead Temperature, Soldering

Vapor Phase 60 sec . . . . . . . . . . . . . . . . . . . . . . . . . +215°C

Infrared 15 sec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +200°C

*Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. This is a stress rating only; functional operation of the

device at these or any other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

THERMAL CHARACTERISTICS

8-Lead SOIC Package: θJA = 150°C/Watt.

PIN FUNCTION DESCRIPTION

Pin

No. Mnemonic Description

1

VDD

2 D+

3 D–

4 ADD

5 GND

6

ALERT

7 SDATA

8 SCLK

Positive Supply, +3 V to +5.5 V

Positive Connection to Emitter of Remote

Temperature Sensor.

Negative Connection to Base of Remote

Temperature Sensor.

Address Select Three-State Logic Input.

Supply 0 V Connection.

Open-Drain Logic Output Used as

Interrupt or SMBus Alert.

Logic Input/Output, SMBus Serial Data.

Open-Drain Output.

Logic Input, SMBus Serial Clock.

PIN CONFIGURATION

VDD 1

8 SCLK

D+ 2 ADM1020 7 SDATA

D–

3

TOP VIEW

(Not to Scale)

6

ALERT

ADD 4

5 GND

ORDERING GUIDE

Model*

ADM1020AR-REEL

ADM1020AR-REEL7

Temperature

Range

0°C to +85°C

Package

Description

8-Lead Small Outline (SOIC)

Package

Option

SO-8

*REEL contains 2500 pieces; REEL7 contains 1000 pieces.

REV. 0

–3–

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