AD7484BST datasheet(4/12 Pages) AD

4 / 12 page

REV. PrC

7/13/01

PRELIMINARY TECHNICAL DATA

AD7484

–4–

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection. Although

the AD7484 features proprietary ESD protection circuitry, permanent damage may occur on devices

subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended

to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS

(TA = +25°C unless otherwise noted)

VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +7 V

VDRIVE to GND . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +7 V

Analog Input Voltage to GND . . -0.3 V to AVDD + 0.3 V

Digital Input Voltage to GND . . -0.3 V to DVDD + 0.3 V

REF IN to GND . . . . . . . . . . . . . -0.3 V to AVDD + 0.3 V

Input Current to Any Pin Except Supplies . . . . . . . ±10mA

Operating Temperature Range

Commercial . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C

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

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . +150°C

48-Pin LQFP Package, Power Dissipation . . . . . . . . T B D

JA Thermal Impedance

. . . . . . . . . . . . . . . . . . . . 50°C/W

JC Thermal Impedance . . . . . . . . . . . . . . . . . . .

10°C/W

Lead Temperature, Soldering

Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . +215°C

Infared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . +220°C

E S D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T B D

NOTES

1Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

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

at these or any other conditions above those listed in the operational sections of this

specification is not implied. Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

PIN CONFIGURATION

ORDERING GUIDE

Temperature

Package

Model

Range

Description

Option

AD7484BST

-40°C to +85°C

Low-profile Quad Flat Pack

ST-48

EVAL-AD7484CB

Evaluation Board

EVAL-CONTROL BRD2

Controller Board

NOTES

1This can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONTROL BOARD for evaluation/demonstration purposes.

2This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.

AVDD

CBIAS

AGND

AVDD

AGND

VIN

VREF2

VREF1

VREF3

AGND

D10

VDRIVE

DGND

DVDD

PIN 1 IDENTIFIER

AD7484

TOP VIEW

(Not to Scale)

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