AD7938 Analog Devices, AD7938 Datasheet - Page 8

• Manufacturer Part Number: AD7938
• Description: 8-Channel, 1.5 MSPS, 12-Bit Parallel ADCs with a Sequencer
• Manufacturer: Analog Devices

Specifications of AD7938

• Resolution (bits): 12bit
• # Chan: 8
• Sample Rate: 1.5MSPS
• Interface: Byte,Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref) p-p,5V p-p,Uni (Vref),Uni (Vref) x 2,Uni 2.5V,Uni 5.0V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

AD7938/AD7939
ABSOLUTE MAXIMUM RATINGS
T
Table 5.
Parameter
V
V
Analog Input Voltage to AGND
Digital Input Voltage to DGND
V
Digital Output Voltage to DGND
V
AGND to DGND
Input Current to Any Pin
Operating Temperature Range
Storage Temperature Range
Junction Temperature
θ
θ
Lead Temperature, Soldering
ESD
1
Transient currents of up to 100 mA do not cause SCR latch-up.
JA
JC
DD
DRIVE
DRIVE
REFIN
A
Except Supplies
Commercial (B Version)
Reflow Temperature (10 sec to 30 sec)
= 25°C, unless otherwise noted.
Thermal Impedance
Thermal Impedance
to AGND/DGND
to AGND
to AGND/DGND
to V
DD
1
Rating
−0.3 V to +7 V
−0.3 V to V
−0.3 V to V
−0.3 V to +7 V
−0.3 V to V
−0.3 V to V
−0.3 V to V
−0.3 V to +0.3 V
±10 mA
−40°C to +85°C
−65°C to +150°C
150°C
108.2°C/W (LFCSP)
121°C/W (TQFP)
32.71°C/W (LFCSP)
45°C/W (TQFP)
255°C
1.5 kV
DD
DD
DD
DRIVE
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
Rev. C | Page 8 of 36
Stresses above those listed under Absolute Maximum Ratings
may cause permanent 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
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Data Sheet