AD779 Analog Devices, AD779 Datasheet - Page 5

• Manufacturer Part Number: AD779
• Description: 14-Bit 128 kSPS Complete Sampling ADC
• Manufacturer: Analog Devices

Model
AD779JN
AD779KN
AD779JD
AD779KD
AD779AD
AD779BD
AD779SD
AD779TD
NOTES
1
2
3
REV. B
ABSOLUTE MAXIMUM RATINGS
Specification
V
V
V
V
AGND
AIN, REF
Digital Inputs
Digital Outputs
Max Junction
Operating Temperature
Storage Temperature
Lead Temperature
NOTES
1
2
ESD SENSITIVITY
The AD779 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 AD779
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
equipment 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.
For two cycle read (8+16 bits) interface to 8-bit buses, see AD679.
For details on grade and package offerings screened in accordance with MIL-STD-883, refer to the Analog Devices Military Products Databook or current
D = Ceramic DIP; N = Plastic DIP.
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.
AD779/883B data sheet.
Stresses above those listed under “Absolute Maximum Ratings” may cause
The AD779 is not designed to operate from 15 V supplies.
CC
BE
CC
DD
Temperature
J and K Grades
A and B Grades
S and T Grades
(10 sec max)
2
2
IN
Temperature Range
0 C to +70 C
0 C to +70 C
0 C to +70 C
0 C to +70 C
–40 C to +85 C
–40 C to +85 C
–55 C to +125 C
–55 C to +125 C
With
Respect
To
AGND
AGND
V
DGND
DGND
AGND
DGND
DGND
EE
1
Min
–0.3
–18
–0.3
0
–1
V
–0.5
–0.5
0
–40
–55
–65
EE
Max
+18
+0.3
+26.4
+7
+1
V
+7
V
175
+70
+85
+125
+300
+150
Tested and Specified
AC
AC + DC
AC
AC + DC
AC
AC + DC
AC
AC + DC
CC
DD
+0.3 V
ORDERING GUIDE
Units
V
V
V
V
V
V
V
C
C
C
C
C
C
–5–
1
Package Description
28-Pin Plastic DIP
28-Pin Plastic DIP
28-Pin Ceramic DIP
28-Pin Ceramic DIP
28-Pin Ceramic DIP
28-Pin Ceramic DIP
28-Pin Ceramic DIP
28-Pin Ceramic DIP
WARNING!
ESD SENSITIVE DEVICE
Package Option
N-28
N-28
D-28
D-28
D-28
D-28
D-28
D-28
AD779
3