Datasheet

REV. 0
–10–
AD7708/AD7718
ABSOLUTE MAXIMUM RATINGS*
(T
A
= 25°C unless otherwise noted)
AV
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AV
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DV
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DV
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AGND to DGND . . . . . . . . . . . . . . . . . . –0.05 V to +0.05 V
AV
DD
to DV
DD
. . . . . . . . . . . . . . . . . . . . . . . . . –5 V to +5 V
Analog Input Voltage to AGND . . . . –0.3 V to AV
DD
+0.3 V
Reference Input Voltage to AGND . . –0.3 V to AV
DD
+0.3 V
Total AIN/REFIN Current (Indefinite) . . . . . . . . . . . . 30 mA
Digital Input Voltage to DGND . . . . –0.3 V to DV
DD
+0.3 V
Digital Output Voltage to DGND . . . –0.3 V to DV
DD
+0.3 V
Operating Temperature Range . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
SOIC Package
θ
JA
Thermal Impedance . . . . . . . . . . . . . . . . . . . 71.4°C/W
θ
JC
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 23°C/W
TSSOP Package
θ
JA
Thermal Impedance . . . . . . . . . . . . . . . . . . . 97.9°C/W
θ
JC
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 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 listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
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 AD7708/AD7718 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
ORDERING GUIDE
Temperature Package Package
Model Range Description Option
AD7708BR –40°C to +85°C SOIC R-28
AD7708BRU –40°C to +85°C TSSOP RU-28
EVAL-AD7708EB Evaluation Board
AD7718BR –40°C to +85°C SOIC R-28
AD7718BRU –40°C to +85°C TSSOP RU-28
EVAL-AD7718EB Evaluation Board