3 V/5 V CMOS
0.5 Ω SPDT/2:1 Mux in SC70
ADG849
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Ultralow on-resistance:
0.5 Ω typical
0.8 Ω maximum at 5 V supply
Excellent audio performance, ultralow distortion:
0.13 Ω typical
0.24 Ω maximum RON flatness
High current carrying capability:
400 mA continuous current
600 mA peak current at 5 V
Automotive temperature range: –40°C to +125°C
Rail-to-rail operation
Typical power consumption (<0.01 µW)
Pin-compatible upgrade for the ADG749 and ADG779
ADG849
S2
D
S1
SWITCHES SHOWN
FOR A LOGIC 1 INPUT
04737-0-001
IN
Figure 1.
APPLICATIONS
Cellular phones
PDAs
Battery-powered systems
Audio and video signal routing
Modems
PCMCIA cards
Hard drives
Relay replacement
GENERAL DESCRIPTION
The ADG849 is a monolithic, CMOS SPDT (single pole, double
throw) switch that operates with a supply range of 1.8 V to 5.5 V.
It is designed to offer ultralow on-resistance values of typically
0.5 Ω. This design makes the ADG849 an ideal solution for
applications that require minimal distortion through the switch.
The ADG849 also has the capability of carrying large amounts
of current, typically 600 mA at 5 V operation.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
Very low on-resistance, 0.5 Ω typical.
Tiny, 6-lead SC70 package.
Low power dissipation. The CMOS construction ensures
low power dissipation.
High current carrying capability.
Low THD + noise (0.01% typ).
Each switch of the ADG849 conducts equally well in both
directions when on. The device exhibits break-before-make
switching action, thus preventing momentary shorting when
switching channels.
The ADG849 is available in a tiny, 6-lead SC70 package, making
it the ideal candidate for space-constrained applications.
Rev. 0
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