DG508A_MIL/509A_MIL
Vishay Siliconix
Single 8-Ch/Differential 4-Ch CMOS Analog Multiplexers
(Obsolete for non-hermetic. Use DG408/409 as pin-for-pin replacements.)
FEATURES
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BENEFITS
Low On-Resistance: 240 W
TTL and CMOS Logic Compatible
Low Power: 30 mW
Break-Before-Make Switching
44-V Power Supply Rating
Transition Time: 600 ns
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APPLICATIONS
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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
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
Dual-In-Line
EN
A0
EN
V–
S1
S2
S3
S4
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16
1
2
Decoders/Drivers
14
3
13
4
12
5
6
11
7
10
8
DG508A_MIL
Top View
Document Number: 70067
S-00405—Rev. C, 21-Feb-00
15
9
A1
A2
A0
LCC
NC A1
A2
Key
3
2
1
20
19
V–
4
S1
5
NC
6
16
NC
S2
7
15
S5
S3
8
14
S6
GND
18
GND
17
Decoders/Drivers
V+
DG508A_MIL
V+
S5
S6
S7
S8
9
S4
10
D
11
NC
12
S8
13
S7
Top View
www.vishay.com S FaxBack 408-970-5600
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