Datasheet
CMOS 1.8 V to 5.5 V, 2.5 Ω
2:1 Mux/SPDT Switch in SOT-23
ADG719
Rev. D 
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FEATURES 
1.8 V to 5.5 V single supply 
4 Ω (max) on resistance 
0.75 Ω (typ) on resistance flatness 
−3 dB bandwidth > 200 MHz 
Rail-to-rail operation 
6-Lead SOT-23 package and 8-Lead MSOP package 
Fast switching times: 
t
ON
 = 12 ns 
t
OFF
 = 6 ns 
Typical power consumption: (< 0.01 μW) 
TTL/CMOS compatible 
APPLICATIONS 
Battery-powered systems 
Communication systems 
Sample-and-hold systems 
Audio signal routing 
Video switching 
Mechanical reed relay replacement 
FUNCTIONAL BLOCK DIAGRAM 
IN
ADG719
S2
NOTES
1. SWITCHES SHOWN FOR A LOGIC 1 INPUT.
S1
D
08708-001
Figure 1. 
GENERAL DESCRIPTION 
The ADG719 is a monolithic CMOS SPDT switch. This switch 
is designed on a submicron process that provides low power 
dissipation yet gives high switching speed, low on resistance, 
and low leakage currents. 
The ADG719 can operate from a single-supply range of 1.8 V 
to 5.5 V, making it ideal for use in battery-powered instruments 
and with the new generation of DACs and ADCs from Analog 
Devices, Inc. 
Each switch of the ADG719 conducts equally well in both 
directions when on. The ADG719 exhibits break-before-make 
switching action. 
Because of the advanced submicron process, −3 dB bandwidths 
of greater than 200 MHz can be achieved. 
The ADG719 is available in a 6-lead SOT-23 package and an 
8-lead MSOP package. 
PRODUCT HIGHLIGHTS 
1.  1.8 V to 5.5 V Single-Supply Operation. The ADG719 
offers high performance, including low on resistance and 
fast switching times, and is fully specified and guaranteed 
with 3 V and 5 V supply rails. 
2.  Ver y Low R
ON
 (4 Ω Max at 5 V and 10 Ω Max at 3 V). At 1.8 V 
operation, R
ON
 is typically 40 Ω over the temperature range. 
3.  Automotive Temperature Range: −40°C to +125°C. 
4.  On Resistance Flatness (R
FLAT(ON)
) (0.75 Ω typ). 
5.  −3 dB Bandwidth > 200 MHz. 
6.  Low Power Dissipation. CMOS construction ensures low 
power dissipation. 
7.  Fast t
ON
/t
OFF
. 
8.  Tiny, 6-lead SOT-23 and 8-lead MSOP packages. 










