ad773akd Analog Devices, Inc., ad773akd Datasheet - Page 4

• Manufacturer Part Number: ad773akd
• Description: 10-bit, 20 Msps Monolithic A/d Converter
• Manufacturer: Analog Devices, Inc.

AD773A
ABSOLUTE MAXIMUM RATINGS*
Parameter
AV
AV
V
DV
AGND
AV
CLK
REFIN
Junction Temperature
Storage Temperature
Lead Temperature
*Stresses above those listed under “Absolute Maximum Ratings” may cause
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD773A features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
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 ratings for extended periods may affect device reliability.
INA
(10 sec)
DD
SS
DD
DD
, V
, DRV
INB
BIT 10 (LSB)
DD
REFGND
DRGND
DRV
REFIN
AGND
DGND
AV
AV
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
DD
DD
SS
PIN CONFIGURATION
10
12
13
14
11
1
2
3
4
5
6
7
8
9
With Respect to
AGND
AGND
AGND
DGND, DRGND –0.5 +6.5 V
DGND, DRGND –1.0 +1.0 V
DV
DV
REFGND, AGND –0.5 +6.5 V
(Not to Scale)
DD
DD
AD773A
TOP VIEW
, DRV
, DRV
DD
DD
19
28
27
26
25
24
23
22
20
18
17
16
15
21
Min Max Units
–0.5 +6.5 V
–6.5 +0.5 V
–6.5 +6.5 V
–6.5 +0.5 V
–6.5 +0.5 V
–65
AGND
AV
DV
DRV
DRGND
OTR
MSB
BIT 1 (MSB)
BIT 2
BIT 3
BIT 4
V
V
CLK
INB
INA
SS
DD
DD
+150 C
+150 C
+300 C
–4–
Model
AD773AJD
AD773AKD 0 C to +70 C
NOTES
1
2
Symbol
AGND
AV
AV
MSB
OTR
BIT 1 (MSB) 18
BIT 2–BIT 9
BIT 10 (LSB) 9
CLK
DV
DRV
DGND
DRGND
REFGND
REFIN
V
V
Type: AI = Analog Input; DI = Digital Input; DO = Digital
Output; P = Power.
See Military/Aerospace Reference Manual for AD773ASD/883B specifications.
D = Ceramic DIP.
INA
INB
DD
SS
DD
DD
Temperature
Range
0 C to +70 C
5, 28
20
6
8, 21
1
2
Pin No. Type Name and Function
4
3, 25
19
17–10
23
24
7, 22
26
27
ORDERING GUIDE
PIN DESCRIPTION
P
P
P
DO
DO
DO
DO
DO
DI
P
P
P
P
AI
AI
AI
AI
Description
28-Pin Ceramic DIP D-28
28-Pin Ceramic DIP D-28
Analog Ground.
+5 V Analog Supply.
–5 V Analog Supply.
Inverted Most Significant Bit.
Provides twos complement out-
put data format.
Out of Range is Active HIGH on
the leading edge of Code 0 or the
trailing edge of Code 1023. See
Output Data Format Table II.
Most Significant Bit.
Data Bit 2 through Data Bit 9.
Least Significant Bit.
Clock Input. The AD773A will
initiate a conversion on the falling
edge of the clock input. See the
Timing Diagram for details.
+5 V Digital Supply.
+5 V Digital Supply for the out-
put drivers.
Digital Ground.
Digital Ground for the output
drivers.
REFGND is connected to the
ground of the external reference.
REFIN is the external 2.5 V ref-
erence input, taken with respect
to REFGND.
(+) Analog input signal to the dif-
ferential input THA.
(–) Analog input signal to the dif-
ferential input THA.
WARNING!
1
ESD SENSITIVE DEVICE
Package
Option
REV. 0
2