AD679 Analog Devices, AD679 Datasheet - Page 5

• Manufacturer Part Number: AD679
• Description: 14-Bit 128 kSPS Complete Sampling ADC
• Manufacturer: Analog Devices

REV. C
CAUTION
The AD679 features input protection circuitry consisting of large “distributed” diodes and
polysilicon series resistors to dissipate both high energy discharges (Human Body Model) and fast,
low energy pulses (Charged Device Model). Per Method 3015.2 of MIL-STD-883C, the AD679 has
been classified as a Category 1 device.
Proper ESD precautions are strongly recommended to avoid functional damage or performance
degradation. Charges as high as 4000 volts readily accumulate on the human body and test equip-
ment and discharge without detection. Unused devices must be stored in conductive foam or shunts,
and the foam should be discharged to the destination socket before devices are removed. For further
information on ESD precautions, refer to Analog Devices’ ESD Prevention Manual.
ABSOLUTE MAXIMUM RATINGS*
Specification
V
V
V
V
AGND
AIN, REF
Digital Inputs
Digital Outputs
Max Junction
CC
EE
CC
DD
Temperature
(Note 1)
IN
28-Pin Ceramic DIP Package (D-28)
28-Lead Plastic DIP Package (N-28)
With
Respect
To
AGND
AGND
V
DGND
DGND
AGND
DGND
DGND
EE
Min
–0.3
–18
–0.3
0
–1
V
–0.5
–0.5
EE
Max
+18
+0.3
+26.4
+7
+1
V
+7
V
175
CC
DD
+ 0.3 V
Dimensions shown in inches and (mm).
OUTLINE DIMENSIONS
Units
V
V
V
V
V
V
V
C
–5–
Specification
Operating
Temperature
Storage Temperature
Lead Temperature
NOTES
*Stresses above those listed under “Absolute Maximum Ratings” may cause
1
The AD679 is not designed to operate from 15 V supplies.
permanent damage to the device. This is a stress rating only and 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 rating conditions for extended periods may affect device reliability.
J and K Grades
A and B Grades
S and T Grades
(10 sec max)
44-Lead J-Leaded Chip Carrier (J-44)
With
Respect
To
WARNING!
Min
0
–40
–55
–65
Max
+70
+85
+125
+150
+300
ESD SENSITIVE DEVICE
AD679
Units
C
C
C
C
C