ADG721 Datasheet, PDF (1/8 Pages) Analog Devices – CMOS Low Voltage 4 ohm Dual SPST Switches

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FEATURES
+1.8 V to +5.5 V Single Supply
4 ⍀ (Max) On Resistance
Low On-Resistance Flatness
–3 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 ␮W)
TTL/CMOS Compatible
APPLICATIONS
Battery Powered Systems
Communication Systems
Sample Hold Systems
Audio Signal Routing
Video Switching
Mechanical Reed Relay Replacement
CMOS
Low Voltage 4 ⍀ Dual SPST Switches
ADG721/ADG722/ADG723
FUNCTIONAL BLOCK DIAGRAMS
ADG721
ADG722
S1
S1
IN1
IN1
D1
D1
D2
D2
IN2
IN2
S2
S2
ADG723
S1
IN1
D1
D2
IN2
S2
SWITCHES SHOWN FOR A LOGIC "0" INPUT
GENERAL DESCRIPTION
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.
PRODUCT HIGHLIGHTS
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 Ω max at 5 V, 10 Ω max at 3 V). At 1.8 V
operation, R_ON is typically 40 Ω over the temperature range.
3. Low On-Resistance Flatness.
4. –3 dB Bandwidth >200 MHz.
5. Low Power Dissipation. CMOS construction ensures low
power dissipation.
6. Fast t_ON/t_OFF.
7. 8-Lead µSOIC.
REV. 0
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© Analog Devices, Inc., 1998