DG508A_MIL/509A_MIL
Vishay Siliconix
Document Number: 70067
S-00405—Rev. C, 21-Feb-00
www.vishay.com FaxBack 408-970-5600
5-1
Single 8-Ch/Differential 4-Ch CMOS Analog Multiplexers
(Obsolete for non-hermetic. Use DG408/409 as pin-for-pin replacements.)
Low On-Resistance: 240
TTL and CMOS Logic Compatible
Low Power: 30 mW
Break-Before-Make Switching
44-V Power Supply Rating
Transition Time: 600 ns
Easily Interfaced
Low Power Consumption
Low System Crosstalk
Wide Analog Signal Range
Communication Systems
ATE
Data Acquisition Systems
Audio Signal Routing and Multiplexing
Medical Instrumentation
The DG508A_MIL, an 8-channel single-ended analog
multiplexer, is designed to connect one of eight inputs to a
common output as determined by a 3-bit binary address (A
0
,
A
1
, A
2
).
The DG509A_MIL, a dual 4-channel analog multiplexer, is
designed to connect one of four differential inputs to a common
output as determined by its 2-bit binary address (A
0
, A
1
) logic.
Break-before-make switching action protects against
momentary shorting of the input signals.
A channel in the on state conducts current equally well in both
directions. In the off state each channel blocks voltages up to
the power supply rails, normally 30 V peak-to-peak. An enable
(EN) function allows for device selection when several
multiplexers are used All control inputs, address (A
X
) and
enable (EN) are TTL or CMOS compatible over the full
specified operating temperature range.
Fabricated in the Vishay Siliconix Plus-40 process, the
absolute maximum voltage rating is extended to 44 V, allowing
increased operating headroom for standard 15-V signal
swings and operation with 20-V supplies. An epitaxial layer
prevents latch up.
The DG508A_MIL/509A_MIL are available in hermetic
packages. For plastic packages, use the DG408/409 as
pin-for-pin replacements.
For applications requiring address data latching, the
DG528/529 is recommended. DG408/409 is recommended
for higher precision applications. For wideband/video routing
and multiplexing, the DG538A is recommended.
S
3
A
0
S
6
D
S
4
A
1
S
8
S
7
EN
Dual-In-Line
A
2
V– GND
S
1
V+
S
2
S
5
Decoders/Drivers
1
2
3
4
5
6
7
16
15
14
13
12
11
10
Top View
89
DG508A_MIL
Key
V–
NC
GND
S
8
S
1
S
7
V+
S
4
NC
D
NC
NC
S
2
A
1
S
5
A
2
S
3
EN
S
6
A
0
910111213
4
5
6
7
8
1231920
14
15
16
17
18
Top View
LCC
Decoders/Drivers
DG508A_MIL
