AD7708 Analog Devices, AD7708 Datasheet - Page 10

• Manufacturer Part Number: AD7708
• Description: 16-Bit 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7708

• Resolution (bits): 16bit
• # Chan: 10
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

ABSOLUTE MAXIMUM RATINGS
(T
AV
AV
DV
DV
AGND to DGND . . . . . . . . . . . . . . . . . . –0.05 V to +0.05 V
AV
Analog Input Voltage to AGND . . . . –0.3 V to AV
Reference Input Voltage to AGND . . –0.3 V to AV
Total AIN/REFIN Current (Indefinite) . . . . . . . . . . . . 30 mA
Digital Input Voltage to DGND . . . . –0.3 V to DV
Digital Output Voltage to DGND . . . –0.3 V to DV
Operating Temperature Range . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
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.
AD7708/AD7718
A
DD
DD
DD
= 25°C unless otherwise noted)
DD
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DV
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . –5 V to +5 V
Model
AD7708BR
AD7708BRU
EVAL-AD7708EB
AD7718BR
AD7718BRU
EVAL-AD7718EB
Temperature
Range
–40°C to +85°C SOIC
–40°C to +85°C TSSOP
–40°C to +85°C SOIC
–40°C to +85°C TSSOP
DD
DD
DD
DD
ORDERING GUIDE
+0.3 V
+0.3 V
+0.3 V
+0.3 V
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
SOIC Package
TSSOP Package
Lead Temperature, Soldering
Package
Description Option
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.
θ
θ
θ
θ
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
JA
JC
JA
JC
Thermal Impedance . . . . . . . . . . . . . . . . . . . 71.4°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . 97.9°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 23°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 14°C/W
Package
R-28
RU-28
Evaluation Board
R-28
RU-28
Evaluation Board
WARNING!
ESD SENSITIVE DEVICE