CMOS Latched
4-/8-Channel Analog Multiplexers
ADG528A/ADG529A
FEATURES
44 V Supply Maximum Rating
V
SS
to V
DD
Analog Signal Range
Single-/Dual-Supply Specifications
Wide Supply Ranges (10.8 V to 16.5 V)
Microprocessor Compatible (100 ns
WR
Pulse)
Extended Plastic Temperature Range
(–40°C to +85°C)
Low Leakage (20 pA typ)
Low Power Dissipation (28 mW max)
Available in 18-Lead DIP/SOIC and 20-Lead PLCC Packages
Superior Alternative to:
DG528
DG529
FUNCTIONAL BLOCK DIAGRAMS
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG528A and ADG529A are CMOS monolithic analog
multiplexers with eight channels and four dual channels, respec-
tively. On-chip latches facilitate microprocessor interfacing. The
ADG528A switches one of eight inputs to a common output,
depending on the state of three binary addresses and an enable
input. The ADG529A 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.
The ADG528A and ADG529A are designed on an enhanced
LC
2
MOS process, which gives an increased signal capability of
V
SS
to V
DD
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 multiplex-
ers also feature high switching and low R
ON
.
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. Easily Interfaced
The ADG528A and ADG529A can be easily interfaced with
microprocessors. The
WR
signal latches the state of the
address control lines and the enable line. The
RS
signal
clears both the address and enable data in the latches result-
ing in no output (all switches off).
RS
can be tied to the
microprocessor reset pin.
3. Extended Signal Range
The enhanced LC
2
MOS processing results in a high breakdown
and an increased analog signal range of V
SS
to V
DD
.
4. Break-Before-Make Switching
Switches are guaranteed break-before-make so that input
signals are protected against momentary shorting.
5. Low Leakage
Leakage currents in the range of 20 pA make these multiplexers
suitable for high precision circuits.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
© 2004 Analog Devices, Inc. All rights reserved.
AD [ ANALOG DEVICES ]
