AD7720

–5–

REV. 0

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 AD7720 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.

ABSOLUTE MAXIMUM RATINGS

1

DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

AVDD to DVDD . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

Digital Input Voltage to DGND . . –0.3 V to DVDD + 0.3 V

Analog Input Voltage to AGND . . . –0.3 V to AVDD + 0.3 V

Input Current to Any Pin Except Supplies

2

. . . . . . .

±10 mA

Operating Temperature Range

Industrial (B Version) . . . . . . . . . . . . . . .

–40

°C to +85°C

Storage Temperature Range . . . . . . . . . . . . –65

°C to +150°C

Maximum Junction Temperature . . . . . . . . . . . . . . . +150

°C

TSSOP Package

θ

. . . . . . . . . . . . . . . . . . . . 120

°C/W

Lead Temperature, Soldering

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . +215

°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . +220

°C

NOTES

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

Package

Model

Range

Description

Option

AD7720BRU

–40

°C to +85°C

28-Lead Thin Shrink Small Outline

RU-28

WARNING!

ESD SENSITIVE DEVICE

TOP VIEW

(Not to Scale)

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

AD7720

NC = NO CONNECT

NC

SCLK

DATA

MZERO

BIP

REF2

AGND

NC

STBY

GC

DGND

DVAL

XTAL1/MCLK

XTAL2

VIN(–)

AVDD

REF1

AVDD

RESET

VIN(+)

AGND

RESETO

DGND

AGND

DVDD

AGND

AGND

AGND