a
FEATURES
+1.8 V to +5.5 V Single Supply
4 (Max) On Resistance
Low On-Resistance Flatness
鈥? dB Bandwidth >200 MHz
Rail-to-Rail Operation
8-Lead SOIC Package
Fast Switching Times
t
ON
20 ns
t
OFF
10 ns
Low Power Consumption (<0.1
TTL/CMOS Compatible
CMOS
Low Voltage 4 Dual SPST Switches
ADG721/ADG722/ADG723
FUNCTIONAL BLOCK DIAGRAMS
ADG721
S1
IN1
D1
D2
IN2
S2
IN2
S2
D1
D2
S1
IN1
ADG722
W)
ADG723
S1
IN1
D1
D2
IN2
S2
APPLICATIONS
Battery Powered Systems
Communication Systems
Sample Hold Systems
Audio Signal Routing
Video Switching
Mechanical Reed Relay Replacement
SWITCHES SHOWN FOR A LOGIC "0" INPUT
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG721, ADG722 and ADG723 are monolithic CMOS
SPST switches. These switches are designed on an advanced
submicron process that provides low power dissipation yet gives
high switching speed, low On resistance and low leakage currents.
The ADG721, ADG722 and ADG723 are designed to operate
from a single +1.8 V to +5.5 V supply, making them ideal for
use in battery powered instruments and with the new generation
of DACs and ADCs from Analog Devices.
The ADG721, ADG722 and ADG723 contain two independent
single-pole/single-throw (SPST) switches. The ADG721 and
ADG722 differ only in that both switches are normally open and
normally closed respectively. While in the ADG723, Switch 1 is
normally open and Switch 2 is normally closed.
Each switch of the ADG721, ADG722 and ADG723 conducts
equally well in both directions when on. The ADG723 exhibits
break-before-make switching action.
1. +1.8 V to +5.5 V Single Supply Operation. The ADG721,
ADG722 and ADG723 offers high performance, including
low on resistance and fast switching times and is fully speci-
fied and guaranteed with +3 V and +5 V supply rails.
2. Very Low R
ON
(4
鈩?/div>
max at 5 V, 10
鈩?/div>
max at 3 V). At 1.8 V
operation, R
ON
is typically 40
鈩?/div>
over the temperature range.
3. Low On-Resistance Flatness.
4. 鈥? dB Bandwidth >200 MHz.
5. Low Power Dissipation. CMOS construction ensures low
power dissipation.
6. Fast t
ON
/t
OFF.
7. 8-Lead
碌SOIC.
REV. 0
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.
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
漏 Analog Devices, Inc., 1998
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