AD7824/AD7828
ABSOLUTE MAXIMUM RATINGS*
(T
A
= 25°C, unless otherwise noted.)
V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V, 7 V
Digital Input Voltage to GND
(RD,
CS,
A0, A1, and A2) . . . . . . . . . –0.3 V, V
DD
+ 0.3 V
Digital Output Voltage to GND
(DB0, DB7, RDY, and
INT)
. . . . . . . –0.3 V, V
DD
+ 0.3 V
V
REF
(+) to GND . . . . . . . . . . . . . . . . . V
REF
(–), V
DD
+ 0.3 V
V
REF
(–) to GND . . . . . . . . . . . . . . . . . . . . . . . . 0 V, V
REF
(+)
Analog Input (Any Channel) . . . . . . . . . . –0.3 V, V
DD
+ 0.3 V
Operating Temperature Range
Commercial (K, L Versions) . . . . . . . . . . . . . . 0°C to 70°C
Industrial (B, C Versions) . . . . . . . . . . . . . –40°C to +85°C
Extended (T, U Versions) . . . . . . . . . . . . –55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . 300°C
Power Dissipation (Any Package) to 75°C . . . . . . . . . 450 mW
Derates above 75°C by . . . . . . . . . . . . . . . . . . . . . . 6 mW/°C
*Stresses
above those listed under Absolute Maximum Ratings may cause
permanent 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.
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 AD7824/AD7828 feature 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.
WARNING!
ESD SENSITIVE DEVICE
PIN CONFIGURATIONS
DIP/SOIC/SSOP
AIN4
AIN3
AIN2
AIN1
NC
DB0
DB1
DB2
DB3
RD
1
2
3
4
5
6
24
23
22
21
ORDERING GUIDE
V
DD
NC
A0
A1
DB7
AIN6
1
AIN5
2
AIN4
3
28
27
26
25
24
AIN7
AIN8
V
DD
A0
A1
A2
Model
AD7824KN
AD7824LN
AD7824KR
AD7824BQ
AD7824CQ
AD7824TQ*
AD7824UQ*
AD7828KN
AD7828LN
AD7828KP
AD7828LP
AD7828BQ
AD7828CQ
AD7828BR
AD7828LRS
AD7828TQ*
AD7828UQ*
AD7828TE*
AD7828UE*
Temperature
Range
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
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
0°C to 70°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
Total
Unadjusted Package
Error (LSBs) Option
±
1
±
1/2
±
1
±
1
±
1/2
±
1
±
1/2
±
1
±
1/2
±
1
±
1/2
±
1
±
1/2
+1
±
1/2
±
1
±
1/2
±
1
±
1/2
N-24
N-24
R-24
Q-24
Q-24
Q-24
Q-24
N-28
N-28
P-28A
P-28A
Q-28
Q-28
R-28
RS-28
Q-28
Q-28
E-28A
E-28A
AIN3
4
AIN2
5
AIN1
6
NC
7
AD7824
20
TOP VIEW
19
DB6
(Not to Scale)
18
DB5
7
8
9
10
17
16
15
14
13
AD7828
23
DB4
CS
RDY
V
REF
(+)
V
REF
(–)
TOP VIEW
22
DB7
(Not to Scale)
21
DB6
DB0
8
DB1
9
DB2
10
DB3
11
RD
12
INT
13
GND
14
20
19
18
17
16
15
DB5
DB4
CS
RDY
V
REF
(+)
V
REF
(–)
INT
11
GND
12
NC = NO CONNECT
NC = NO CONNECT
PLCC
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
V
DD
25
A0
24
A1
4
3
2
1
28 27 26
PIN 1
IDENTIFIER
AIN2
5
AIN1
6
NC
7
DB0
8
DB1
9
DB2
10
DB3
11
12 13 14 15
AD7828
TOP VIEW
(Not to Scale)
23
A2
22
DB7
21
DB6
20
DB5
*Available
to /883B processing only. Contact our local sales office for military
data sheet. For U.S. Standard Military Drawing (SMD) see DESC Drawing
#5692-88764.
LCCC
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
4
3
2
1
28 27 26
19
DB4
16
17
18
V
REF
(–)
V
REF
(+)
INT
GND
RD
RDY
CS
V
DD
25
A0
24
A1
23
A2
22
DB7
21
DB6
20
DB5
19
DB4
AIN2
5
AIN1
6
NC
7
NC = NO CONNECT
AD7828
TOP VIEW
(Not to Scale)
DB0
8
DB1
9
DB2
10
DB3
11
12 13 14 15 16 17 18
V
REF
(–)
V
REF
(+)
INT
GND
RD
NC = NO CONNECT
RDY
CS
–4–
REV. F
AD [ ANALOG DEVICES ]
