0.4 Ω CMOS, Dual DPDT Switch
in WLCSP/LFCSP/TSSOP Packages
ADG888
FUNCTIONAL BLOCK DIAGRAM
FEATURES
1.8 V to 5.5 V operation
ADG888
Ultralow on resistance
0.4 Ω typical
S1A
D1
S1B
0.6 Ω maximum at 5 V supply
Excellent audio performance, ultralow distortion
0.07 Ω typical
S2A
D2
S2B
0.14 Ω maximum RON flatness
High current carrying capability
400 mA continuous
IN1
S3A
600 mA peak current at 5 V
Automotive temperature range: −40°C to +125°C
Rail-to-rail switching operation
Typical power consumption (<0.1 μW)
D3
S3B
S4A
D4
S4B
APPLICATIONS
IN2
Cellular phones
PDAs
SWITCHES SHOWN
MP3 players
FOR A LOGIC 1 INPUT
Power routing
Figure 1.
Battery-powered systems
PCMCIA cards
Modems
Audio and video signal routing
Communication systems
Data switching
GENERAL DESCRIPTION
The ADG888 is a low voltage, dual DPDT (double-pole,
double-throw) CMOS device optimized for high performance
audio switching. With its low power and small physical size, it is
ideal for portable devices.
The ADG888 is available in a 16-ball WLCSP, 16-lead LFCSP,
and a 16-lead TSSOP. These packages make the ADG888 the
ideal solution for space-constrained applications.
PRODUCT HIGHLIGHTS
This device offers ultralow on resistance of less than 0.8 Ω over
the full temperature range, making it an ideal solution for
applications requiring minimal distortion through the switch.
The ADG888 also has the capability of carrying large amounts
of current, typically 400 mA at 5 V operation.
1. <0.6 Ω over full temperature range of −40°C to +125°C.
2. High current handling capability (400 mA continuous
current at 5 V).
3. Low THD + N (0.008% typical).
4. Tiny 16-ball WLCSP, 16-lead LFCSP, and 16-lead TSSOP.
When on, each switch conducts equally well in both directions
and has an input signal range that extends to the supplies. The
ADG888 exhibits break-before-make switching action.
Rev. A
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