REV. PrA

PRELIMINARY TECHNICAL DATA

–4–

AD9748

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 AD9748 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

*

With

Parameter

Respect to

Min

Max

Unit

AVDD

ACOM

–0.3

+3.9

V

DVDD

DCOM

–0.3

+3.9

V

ACOM

DCOM

–0.3

+0.3

V

AVDD

DVDD

–3.9

+3.9

V

CLOCK, SLEEP

DCOM

–0.3

DVDD + 0.3 V

Digital Inputs

DCOM

–0.3

DVDD + 0.3 V

IOUTA, IOUTB

ACOM

–1.0

AVDD + 0.3

V

REFIO, REFLO, FSADJ

ACOM

–0.3

AVDD + 0.3

V

Junction Temperature

150

°C

Storage Temperature

–65

+150

°C

Lead Temperature (10 sec)

300

°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

sections of this specification is not implied. Exposure to absolute maximum ratings

for extended periods may effect device reliability.

ORDERING GUIDE

Temperature

Package

Package

Model

Range

Description

Options

*

AD9748XCP –40°C to +85°C 32-Lead LFCSP

CP-32

*CP = Leadframe Chip Scale Package

THERMAL CHARACTERISTICS

Thermal Resistance

32-Lead LFCSP

Figure 1. Timing Diagram

DIGITAL SPECIFICATIONS

Parameter

Min

Typ

Max

Unit

DIGITAL INPUTS

Logic “1” Voltage

2.1

3

V

Logic “0” Voltage

0

0.9

V

Logic “1” Current

–10

+10

µA

Logic “0” Current

–10

+10

µA

Input Capacitance

5

pF

2.0

ns

1.5

ns

1.5

ns