CMOS, 2.5 ꢀ Low Voltage,
Triple/Quad SPDT Switches
a
ADG733/ADG734
FUNCTIONAL BLOCK DIAGRAMS
ADG733
FEATURES
1.8 V to 5.5 V Single Supply
ꢁ3 V Dual Supply
2.5 ꢀ On Resistance
S1A
D1
S4A
D2
S1B
D1
0.5 ꢀ On Resistance Flatness
100 pA Leakage Currents
19 ns Switching Times
Triple SPDT: ADG733
S3A
D3
S4B
S1A
S1B
IN4
IN1
S3B
ADG734
S2A
Quad SPDT: ADG734
D2
IN2
IN3
Small TSSOP and QSOP Packages
Low Power Consumption
TTL/CMOS-Compatible Inputs
S2B
S3B
D3
S2B
D2
LOGIC
S2A
S3A
APPLICATIONS
A0
A2
A1
EN
Data Acquisition Systems
Communication Systems
Relay Replacement
SWITCHES SHOWN FOR A “1” INPUT LOGIC
Audio and Video Switching
Battery-Powered Systems
PRODUCT HIGHLIGHTS
GENERAL DESCRIPTION
1. Single/Dual Supply Operation. The ADG733 and ADG734 are
fully specified and guaranteed with 3 V and 5 V single supply
rails and 3 V dual supply rails.
The ADG733 and ADG734 are low voltage, CMOS devices
comprising three independently selectable SPDT (single pole,
double throw) switches and four independently selectable SPDT
switches respectively.
2. Low On Resistance (2.5 Ω typical).
Low power consumption and operating supply range of 1.8 V to
5.5 V and dual 3 V make the ADG733 and ADG734 ideal for
battery powered, portable instruments. All channels exhibit
break-before-make switching action preventing momentary
shorting when switching channels. An EN input on the ADG733
is used to enable or disable the device. When disabled, all chan-
nels are switched OFF.
3. Low Power Consumption (<0.01 µW).
4. Guaranteed Break-Before-Make Switching Action.
These 2–1 multiplexers/SPDT switches are designed on an
enhanced submicron process that provides low power dissipation
yet gives high switching speed, very low on resistance, high signal
bandwidths and low leakage currents. On resistance is in the region
of a few ohms, is closely matched between switches and very flat
over the full signal range. These parts can operate equally well
in either direction and have an input signal range which extends
to the supplies.
The ADG733 is available in small TSSOP and QSOP packages,
while the ADG734 is available in a small TSSOP package.
REV. 0
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© Analog Devices, Inc., 2001