FUNCTIONAL BLOCK DIAGRAMS
IN1
IN2
IN3
IN4
S1
D1
S2
D2
S3
D3
S4
D4
ADG451
IN1
IN2
IN3
IN4
IN1
S1
D1
S2
D2
S3
D3
S4
D4
ADG452
IN2
IN3
IN4
S1
D1
S2
D2
S3
D3
S4
D4
ADG453
SWITCHES SHOWN FOR A LOGIC "1" INPUT
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
LC
2
MOS
5 V R
ON
SPST Switches
ADG451/ADG452/ADG453
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 1998
FEATURES
Low On Resistance (4 V)
On Resistance Flatness 0.2 V
44 V Supply Maximum Ratings
615 V Analog Signal Range
Fully Specified @ 65 V, +12 V, 615 V
Ultralow Power Dissipation (18 mW)
ESD 2 kV
Continuous Current 100 mA
Fast Switching Times
t
O
N
70 ns
t
OFF
60 ns
TTL/CMOS Compatible
Pin Compatible Upgrade for ADG411/ADG412/ADG413
and ADG431/ADG432/ADG433
APPLICATIONS
Relay Replacement
Audio and Video Switching
Automatic Test Equipment
Precision Data Acquisition
Battery Powered Systems
Sample Hold Systems
Communication Systems
PBX, PABX Systems
Avionics
The ADG453 exhibits break-before-make switching action for
use in multiplexer applications. Inherent in the design is low charge
injection for minimum transients when switching the digital inputs.
PRODUCT HIGHLIGHTS
1. Low R
ON
(5 Ω max)
2. Ultralow Power Dissipation
3. Extended Signal Range
The ADG451, ADG452 and ADG453 are fabricated on an
enhanced LC
2
MOS process giving an increased signal
range that fully extends to the supply rails.
4. Break-Before-Make Switching
This prevents channel shorting when the switches are
configured as a multiplexer. (ADG453 only.)
5. Single Supply Operation
For applications where the analog signal is unipolar, the
ADG451, ADG452 and ADG453 can be operated from a
single rail power supply. The parts are fully specified with a
single +12 V power supply and will remain functional with
single supplies as low as +5.0 V.
6. Dual Supply Operation
For applications where the analog signal is bipolar, the
ADG451, ADG452 and ADG453 can be operated from a
dual power supply ranging from ±4.5 V to ±20 V.
GENERAL DESCRIPTION
The ADG451, ADG452 and ADG453 are monolithic CMOS
devices comprising four independently selectable switches. They
are designed on an enhanced LC
2
MOS process that provides
low power dissipation yet gives high switching speed and low on
resistance.
The on resistance profile is very flat over the full analog input
range ensuring excellent linearity and low distortion when
switching audio signals. Fast switching speed coupled with high
signal bandwidth also make the parts suitable for video signal
switching. CMOS construction ensures ultralow power dissipa-
tion making the parts ideally suited for portable and battery
powered instruments.
The ADG451, ADG452 and ADG453 contain four indepen-
dent single-pole/single-throw (SPST) switches. The ADG451
and ADG452 differ only in that the digital control logic is in-
verted. The ADG451 switches are turned on with a logic low on
the appropriate control input, while a logic high is required for
the ADG452. The ADG453 has two switches with digital con-
trol logic similar to that of the ADG451 while the logic is in-
verted on the other two switches.
Each switch conducts equally well in both directions when ON
and has an input signal range which extends to the supplies. In
the OFF condition, signal levels up to the supplies are blocked.
