0.5 Ω CMOS, Dual
2:1 MUX/SPDT Audio Switch

ADG884


Rev. A
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FEATURES
1.8 V to 5.5 V operation
Ultralow on resistance
0.34 Ω typ
0.38 Ω max at 5 V supply
Excellent audio performance, ultralow distortion
0.1 Ω typ
0.15 Ω max RON flatness
High current carrying capability
400 mA continuous
600 mA peak current at 5 V supply
Rail-to-rail switching operation
Typical power consumption (<0.1 µW)
APPLICATIONS
Cellular phones
PDAs
MP3 players
Power routing
Battery-powered systems
PCMCIA cards
Modems
Audio and video signal routing
Communications systems
FUNCTIONAL BLOCK DIAGRAM
05028-001
S1A
S1B
S2A
S2B
IN2
ADG884
D1
D2
SWITCHES SHOWN FOR A LOGIC 1 INPUT
IN1

Figure 1.

GENERAL DESCRIPTION
The ADG884 is a low voltage CMOS device containing two
independently selectable single-pole, double-throw (SPDT)
switches. This device offers ultralow on resistance of less than
0.4 Ω over the full temperature range, making the part an ideal
solution for applications that require minimal distortion
through the switch. The ADG884 also has the capability of
carrying large amounts of current, typically 600 mA at 5 V
operation.
The ADG884 is available in a 10 bump, 2.0 mm × 1.50 mm
WLCSP package, a 10-lead LFCSP package, and a 10-lead
MSOP package. These tiny packages make the ADG884 the
ideal solution for space-constrained applications.
When on, each switch conducts equally well in both directions
and has an input signal range that extends to the supplies. The
ADG884 exhibits break-before-make switching action.
PRODUCT HIGHLIGHTS
1. Single 1.8 V to 5.5 V operation.
2. High current handling capability (400 mA continuous
current at 3.3 V).
3. 1.8 V logic-compatible.
4. Low THD + N (0.01% typ).
5. Tiny 2 mm × 1.5 mm WLCSP package, 3 mm × 3 mm
10-lead LFCSP package, and 10-lead MSOP package.

Table 1. ADG884 Truth Table
Logic (IN1/IN2) Switch 1A/2A Switch 1B/2B
0 Off On
1 On Off