2
LC MOS
a
5 ⍀ R SPST Switches
ON
ADG451/ADG452/ADG453
FUNCTIO NAL BLO CK D IAGRAMS
FEATURES
Low On Resistance (4 ⍀)
On Resistance Flatness 0.2 ⍀
44 V Supply Maxim um Ratings
؎15 V Analog Signal Range
Fully Specified @ ؎5 V, +12 V, ؎15 V
Ultralow Pow er Dissipation (18 W)
ESD 2 kV
S1
S1
IN1
IN2
IN3
IN4
IN1
IN2
IN3
IN4
D1
S2
D1
S2
D2
S3
D2
S3
ADG451
ADG452
Continuous Current 100 m A
Fast Sw itching Tim es
D3
S4
D3
S4
tO 70 ns
N
tOFF 60 ns
D4
D4
TTL/ CMOS Com patible
Pin Com patible Upgrade for ADG411/ ADG412/ ADG413
and ADG431/ ADG432/ ADG433
S1
IN1
D1
S2
APPLICATIONS
IN2
IN3
IN4
Relay Replacem ent
D2
S3
Audio and Video Sw itching
Autom atic Test Equipm ent
Precision Data Acquisition
Battery Pow ered System s
Sam ple Hold System s
Com m unication System s
PBX, PABX System s
Avionics
ADG453
D3
S4
D4
SWITCHES SHOWN FOR A LOGIC "1" INPUT
T he 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.
GENERAL D ESCRIP TIO N
T he ADG451, ADG452 and ADG453 are monolithic CMOS
devices comprising four independently selectable switches. T hey
are designed on an enhanced LC2MOS process that provides
low power dissipation yet gives high switching speed and low on
resistance.
P RO D UCT H IGH LIGH TS
1. Low RON (5 Ω max)
2. Ultralow Power Dissipation
T he 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.
3. Extended Signal Range
T he ADG451, ADG452 and ADG453 are fabricated on an
enhanced LC2MOS process giving an increased signal
range that fully extends to the supply rails.
4. Break-Before-Make Switching
T his prevents channel shorting when the switches are
configured as a multiplexer. (ADG453 only.)
T he ADG451, ADG452 and ADG453 contain four indepen-
dent single-pole/single-throw (SPST ) switches. T he ADG451
and ADG452 differ only in that the digital control logic is in-
verted. T he ADG451 switches are turned on with a logic low on
the appropriate control input, while a logic high is required for
the ADG452. T he 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.
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. T he 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.
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.
REV. A
Inform ation furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assum ed by Analog Devices for its
use, nor for any infringem ents of patents or other rights of third parties
which m ay result from its use. No license is granted by im plication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.
Tel: 781/ 329-4700
Fax: 781/ 326-8703
World Wide Web Site: http:/ / w w w .analog.com
© Analog Devices, Inc., 1998
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