CMOS, Low Voltage, 4 Ω Dual SPST
Switches in 3 mm × 2 mm LFCSP
1.8 V to 5.5 V single supply
4 Ω (max) on resistance
Low on resistance flatness
−3 dB bandwidth >200 MHz
Tiny package options
3 mm × 2 mm LFCSP (A grade)
Fast switching times
tON, 20 ns
tOFF, 10 ns
Low power consumption (<0.1 μW)
USB 1.1 signal switching circuits
Sample hold systems
Audio signal routing
Mechanical reed relay replacement
FUNCTIONAL BLOCK DIAGRAMS
SWITCHES SHOWN FOR
A LOGIC "0" INPUT
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 devices are packaged in both a tiny 3 mm × 2 mm
LFCSP and an MSOP, making them ideal for space-constrained
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, Inc.
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. 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.
2. Very low RON (4 Ω max at 5 V, 10 Ω max at 3 V).
3. Low on resistance flatness.
4. −3 dB bandwidth >200 MHz.
5. Low power dissipation. CMOS construction ensures low
6. 8-lead MSOP and 3 mm × 2 mm LFCSP.
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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