CMOS Low Voltage
2 Ω SPST Switches
ADG701/ADG702
FEATURES
FUNCTIONAL BLOCK DIAGRAM
1.8 V to 5.5 V single supply
2 Ω (typical) on resistance
Low on resistance flatness
–3 dB bandwidth > 200 MHz
Rail-to-rail operation
Fast switching times
ADG701
ADG702
S
D
S
D
IN
IN
SWITCHES SHOWN FOR A LOGIC 1 INPUT
tON 18 ns
Figure 1.
tOFF 12 ns
Typical power consumption < 0.01 μW
TTL/CMOS-compatible
APPLICATIONS
Battery-powered systems
Communications systems
Sample-and-hold systems
Audio signal routing
Video switching
Mechanical reed relay replacement
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG701/ADG702 are monolithic CMOS SPST switches.
These switches are designed on an advanced submicron process
that provides low power dissipation yet high switching speed,
low on resistance, and low leakage currents. In addition, −3 dB
bandwidths of greater than 200 MHz can be achieved.
1. 1.8 V to 5.5 V Single-Supply Operation.
The ADG701/ADG702 offer high performance, including
low on resistance and fast switching times, and are fully
specified and guaranteed with 3 V and 5 V supply rails.
2. Very Low RON (3 Ω Maximum at 5 V, 5 Ω Maximum at 3 V).
At 1.8 V operation, RON is typically 40 Ω over the tempera-
ture range.
The ADG701/ADG702 can operate from a single 1.8 V to 5.5 V
supply, making it ideal for use in battery-powered instruments
and with the new generation of DACs and ADCs from Analog
Devices, Inc.
3. On Resistance Flatness RFLAT(ON) (1 Ω Maximum).
4. −3 dB Bandwidth > 200 MHz.
Figure 1 shows that with a logic input of 1, the switch of the
ADG701 is closed and that of the ADG702 is open. Each switch
conducts equally well in both directions when on.
5. Low Power Dissipation.
CMOS construction ensures low power dissipation.
The ADG701/ADG702 are available in 5-lead SOT-23, 6-lead
SOT-23, and 8-lead MSOP packages.
6. Fast tON/tOFF
.
Table 1. Related Devices
Part No.
Description
ADG701L/ADG702L
Low voltage 2 Ω SPST switches
with guaranteed leakage
specifications
Rev. C
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