
General Description
Maxim’s DG508A and DG509A are monolithic CMOS
analog multiplexers (muxes): the DG508A is a single
8-channel (1-of-8) mux, and the DG509A is a differential
4-channel (2-of-8) mux.
Both devices guarantee break-before-make switching.
Maxim guarantees these muxes will not latch up if the
power supplies are turned off with the input signals still
present. Maxim also guarantees continuous operation
when these devices are powered by supplies ranging
from ±4.5V to ±18V.
The DG508A/DG509A are plug-in upgrades for the indus-
try-standard DG08A/DG509A, respectively. Maxim’s parts
have lower on-resistance, faster enable switching times,
and significantly lower leakage currents. The DG508A/
DG509A also consume significantly lower power, making
them ideal for portable equipment.
Applications
Control Systems
Data Logging Systems
Aircraft Heads-Up Displays
Data-Acquisition Systems
Signal Routing
Typical Operating Circuits
Features
o
Improved Second Source
o
Operate from ±4.5V to ±18V Supplies
o
Symmetrical, Bidirectional Operation
o
Logic and Enable Inputs, TTL and
CMOS Compatible
o
Latchup-Proof Construction
o
Monolithic, Low-Power CMOS Design
D
Monolithic CMOS Analog Multiplexers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A0
A1
A2
GND
V+
S5
S6
S7
S8
TOP VIEW
DG508A
EN
V-
S3
S1
S2
S4
D
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A0
A1
GND
V+
S1B
S2B
S3B
S4B
DB
DG509A
DIP/SO
EN
V-
S3A
S1A
S2A
S4A
DA
Pin Configurations
Ordering Information
S1
S2
S3
S4
S5
S6
S7
S8
-15V
D
ANALOG
OUTPUT
(INPUTS)
A0A1 A2 EN
V+
V-
GND
ANALOG
INPUT
(OUTPUTS)
+15V
+15V
ENABLE IN (MUX ON/OFF CONTROL)
CLOCK
IN
N.C.
N.C.
B
IN
Q
B
Q
C
Q
D
Q
A
V+
A
IN
r01 r02 GND
-15V
DG508A
19-0028; Rev 3; 9/01
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
PART
TEMP RANGE
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
-20
°
C to +85
°
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
PIN-PACKAGE
16 Plastic DIP
16 Wide SO
Dice*
16 CERDIP
16 Plastic DIP
16 Narrow SO
16 QFN
16 Wide SO
16 CERDIP
DG508A
CJ
DG508ACWE
DG508AC/D
DG508ABK
DG508ADJ
DG508ADY
DG508AEGE
DG508AEWE
DG508AAK
Pin Configurations continued at end of data sheet.
8-CHANNEL SEQUENTIAL MUX/DEMUX
Typical Operating Circuits continued at end of data sheet.