CMOS 4-/8-Channel
Analog Multiplexers
ADG508A/ADG509A
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
44 V supply maximum rating
VSS to VDD analog signal range
ADG508A
D
S1
Single-/dual-supply specifications
Wide supply range: 10.8 V to 16.5 V
Extended plastic temperature range: −40°C to +85°C
Low power dissipation: 28 mW maximum
Low leakage: 20 pA typical
S8
Available in 16-lead DIP/SOIC and 20-lead PLCC/LCC
packages
DECODER
Superior alternative to
DG508A, HI-508
A0 A1 A2 EN
DG509A, HI-509
Figure 1. ADG508A
ADG509A
DA
DB
S1A
S4A
S1B
S4B
DECODER
A0 A1 EN
Figure 2. ADG509A
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
1. Single-/Dual-Supply Specifications with a Wide Tolerance.
The devices are specified in the 10.8 V to 16.5 V range for
both single and dual supplies.
2. Extended Signal Range. The enhanced LC2MOS processing
results in a high breakdown and an increased analog signal
The ADG508A and ADG509A are CMOS monolithic analog
multiplexers with eight channels and dual four channels, respec-
tively. The ADG508A switches one of eight inputs to a common
output, depending on the state of three binary addresses and an
enable input. The ADG509A switches one of four differential
inputs to a common differential output, depending on the state
of two binary addresses and an enable input. Both devices have
TTL and 5 V CMOS logic-compatible digital inputs.
range of VSS to VDD
.
3. Break-Before-Make Switching. Switches are guaranteed
break-before-make so that input signals are protected
against momentary shorting.
The ADG508A and ADG509A are designed on an enhanced
LC2MOS process that gives an increased signal capability of VSS
to VDD and enables operation over a wide range of supply voltages.
The devices can comfortably operate anywhere in the 10.8 V to
16.5 V single- or dual-supply range. These multiplexers also
4. Low Leakage. Leakage currents in the range of 20 pA make
these multiplexers suitable for high precision circuits.
feature high switching speeds and low RON
.
Rev. D
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