AD678KD Analog Devices Inc, AD678KD Datasheet - Page 5

• Manufacturer Part Number: AD678KD
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc

Specifications of AD678KD

• No. Of Bits: 12 Bit
• Mounting Type: Through Hole
• Features: BiMOS, High-Impedance/-Bandwidth, 10V, AC/DC
• No. Of Channels: 1
• Interface Type: Parallel
• Package / Case: 28-CDIP
• Rohs Status: RoHS non-compliant
• Number Of Bits: 12
• Sampling Rate (per Second): 200k
• Data Interface: Parallel
• Number Of Converters: 2
• Power Dissipation (max): 745mw
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: 0°C ~ 70°C

REV. C
ABSOLUTE MAXIMUM RATINGS*
Specification
V
V
V
V
AGND
AIN, REF
Digital Inputs
Digital Outputs
Max Junction
Operating Temperature
Storage Temperature
Lead Temperature
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
ESD SENSITIVITY
The AD678 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 AD678 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.
nent 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
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Model
AD678JN
AD678KN
AD678JD
AD678KD
AD678AD
AD678BD
AD678AJ
AD678BJ
AD678SD
AD678TD
NOTES
1
2
For details on grade and package offerings screened in accordance with MIL-STD-883, refer to Analog Devices Military Products Databook or /883 data sheet.
N = Plastic DIP; D = Ceramic DIP; J = J-Leaded Ceramic Chip Carrier.
CC
EE
CC
DD
Temperature
J and K Grades
A and B Grades
S and T Grades
(10 sec max)
1
IN
Package
28-Lead Plastic DIP
28-Lead Plastic DIP
28-Lead Ceramic DIP
28-Lead Ceramic DIP
28-Lead Ceramic DIP
28-Lead Ceramic DIP
44-Lead Ceramic JLCC
44-Lead Ceramic JLCC
28-Lead Ceramic DIP
28-Lead Ceramic DIP
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
0
–40
–55
–65
EE
Max
+18
+0.3
+26.4
+7
+1
V
+7
V
175
+70
+85
+125
+150
+300
CC
DD
+ 0.3 V
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
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
–55°C to +125°C
ORDERING GUIDE
Units
V
V
V
V
V
V
V
°C
°C
°C
°C
°C
°C
–5–
REF
BIPOFF
AGND
REF
AIN
OUT
IN
SAMPLE/
VOLTAGE
HOLD
REF.
Tested and Specified
AC
AC + DC
AC
AC + DC
AC
AC + DC
AC
AC + DC
AC
AC + DC
CONVERTER
12-BIT D/A
CS
Functional Block Diagram
SC OE EOCEN SYNC 12/8 EOC
CONTROL LOGIC
12
GAIN
STAGE
CONVERSION
LOGIC
WARNING!
CONVERTER
4-BIT FLASH
4
12
A/D
ESD SENSITIVE DEVICE
REGISTER
OUTPUT
Package Option
N-28
N-28
D-28
D-28
D-28
D-28
J-44
J-44
D-28
D-28
AD678
AD678
DB11
DB2
DB1
(R/L)
DB0
(HBE)
V
V
V
DGND
CC
EE
DD
2