
DG508A_MIL/509A_MIL
Vishay Siliconix
Document Number: 70067
S-00405—Rev. C, 21-Feb-00
www.vishay.com
S 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.)
FEATURES
BENEFITS
APPLICATIONS
D Low On-Resistance: 240 W
D TTL and CMOS Logic Compatible
D Low Power: 30 mW
D Break-Before-Make Switching
D 44-V Power Supply Rating
D Transition Time: 600 ns
D Easily Interfaced
D Low Power Consumption
D Low System Crosstalk
D Wide Analog Signal Range
D Communication Systems
D ATE
D Data Acquisition Systems
D Audio Signal Routing and Multiplexing
D Medical Instrumentation
DESCRIPTION
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 (A0,
A1, A2).
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 (A0, A1) 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 (AX) 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.
FUNCTIONAL BLOCK DIAGRAMS AND PIN CONFIGURATIONS
S3
A0
S6
D
S4
A1
S8
S7
EN
Dual-In-Line
A2
V–
GND
S1
V+
S2
S5
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
S8
S1
S7
V+
S4
NC
D
NC
S2
A1
S5
A2
S3
EN
S6
A0
910
11
12
13
4
5
6
7
8
1
2
319
20
14
15
16
17
18
Top View
LCC
Decoders/Drivers
DG508A_MIL