Dual SPDT Switch
ADG436
FEATURES
FUNCTIONAL BLOCK DIAGRAM
44 V supply maximum ratings
VSS to VDD analog signal range
Low on resistance (12 Ω typ)
Low ∆RON (3 Ω max)
ADG436
S1A
D1
S2A
D2
S1B
S2B
Low RON match (2.5 Ω max)
Low power dissipation
Fast switching times
IN1
IN2
Figure 1.
tON < 175 ns
tOFF < 145 ns
Low leakage currents (5 nA max)
Low charge injection (10 pC)
Break-before-make switching action
APPLICATIONS
Audio and video switching
Battery-powered systems
Test equipment
Communications systems
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
1. Extended signal range.
The ADG436 is a monolithic CMOS device comprising two
independently selectable SPDT switches. It is designed on an
LC2MOS process, which provides low power dissipation yet
gives high switching speed and low on resistance.
The ADG436 is fabricated on an enhanced LC2MOS
process, giving an increased signal range that extends to
the supply rails.
2. Low power dissipation.
The on resistance profile is very flat over the full analog input
range, ensuring good linearity and low distortion when
switching audio signals. High switching speed also makes the
part suitable for video signal switching. CMOS construction
ensures ultralow power dissipation, making the part ideally
suited for portable and battery-powered instruments.
3. Low RON
.
4. Single-supply operation.
For applications where the analog signal is unipolar, the
ADG436 can be operated from a single rail power supply.
Each switch conducts equally well in both directions when on
and has an input signal range which extends to the power
supplies. In the off condition, signal levels up to the supplies
are blocked. All switches exhibit 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.
Rev. B
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