AD779 查看數據表（PDF） - Analog Devices
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AD779 Datasheet PDF : 12 Pages
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ABSOLUTE MAXIMUM RATINGS1
Specification
With
Respect
To
Min
Max
Units
VCC
VBE
VCC2
VDD
AGND
AGND –0.3 +18
V
AGND –18 +0.3
V
VEE
–0.3 +26.4 V
DGND 0
+7
V
DGND –1 +1
V
AIN, REFIN
Digital Inputs
AGND VEE VCC
V
DGND –0.5 +7
V
Digital Outputs
Max Junction
DGND –0.5 VDD +0.3 V
Temperature
175
°C
Operating Temperature
J and K Grades
0
+70
°C
A and B Grades
–40 +85
°C
S and T Grades
–55 +125 °C
Storage Temperature
–65 +150 °C
Lead Temperature
(10 sec max)
+300 °C
NOTES
1Stresses above those listed under “Absolute Maximum Ratings” may cause
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.
2The AD779 is not designed to operate from ± 15 V supplies.
AD779
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.
WARNING!
ESD SENSITIVE DEVICE
ORDERING GUIDE1
Model2
Temperature Range Tested and Specified
Package Description
Package Option3
AD779JN
AD779KN
AD779JD
AD779KD
AD779AD
AD779BD
AD779SD
AD779TD
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
AC
AC + DC
AC
AC + DC
AC
AC + DC
AC
AC + DC
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
N-28
N-28
D-28
D-28
D-28
D-28
D-28
D-28
NOTES
1For two cycle read (8+16 bits) interface to 8-bit buses, see AD679.
2For details on grade and package offerings screened in accordance with MIL-STD-883, refer to the Analog Devices Military Products Databook or current
AD779/883B data sheet.
3D = Ceramic DIP; N = Plastic DIP.
REV. B
–5–
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