AD7782 datasheet(5/12 Pages) AD

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REV. 0

AD7782

–5–

ABSOLUTE MAXIMUM RATINGS*

(TA = 25

°C unless otherwise noted)

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

Analog Input Voltage to GND . . . . . . . . –0.3 V to VDD + 0.3 V

Reference Input Voltage to GND . . . . . –0.3 V to VDD + 0.3 V

Total AIN/REFIN Current (Indefinite) . . . . . . . . . . . . . 30 mA

Digital Input Voltage to GND . . . . . . . . –0.3 V to VDD + 0.3 V

Digital Output Voltage to GND . . . . . . –0.3 V to VDD + 0.3 V

Operating Temperature Range . . . . . . . . . . . . –40

°C to +85°C

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

°C to +150°C

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150

°C

TSSOP Package

JA Thermal Impedance

. . . . . . . . . . . . . . . . . . . . . 97.9

°C/W

θJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 14°C/W

Lead Temperature, Soldering

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

°C

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

°C

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

manent 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.

ORDERING GUIDE

Model

Temperature Range

Package Description

Package Option

AD7782BRU

–40

°C to +85°C

TSSOP

RU-16

EVAL-AD7782EB

Evaluation Board

CH1/CH2 (I)

CS (I)

DOUT/

RDY

SLAVE MODE

SCLK (I)

MASTER MODE

SCLK (O)

I = INPUT TO AD7782, O = OUTPUT FROM AD7782

SLAVE MODE IS SELECTED BY TYING THE MODE PIN LOW, WHILE MASTER MODE IS SELECTED BY TYING THE MODE PIN HIGH.

t11

MSB

LSB

MSB

t10

Figure 2. Slave/Master Mode Timing Diagram

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 AD7782 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

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