2.5 Ω CMOS Low Power

Dual 2:1 Mux/Demux USB 1.1 Switch

ADG787

Rev. A

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FEATURES

USB 1.1 signal switching compliant

−3 dB bandwidth, 150 MHz

Tiny 10-lead LFCSP and MSOP packages, 10-ball WLCSP

package

Single-supply 1.8 V to 5.5 V operation

Low on resistance

2.5 Ω typical

3.45 Ω maximum at 85°C

Typical power consumption: <0.1 μW

APPLICATIONS

USB 1.1 signal switching circuits

Cellular phones

PDAs

MP3 players

Battery-powered systems

Headphone switching

Audio and video signal routing

Communications systems

FUNCTIONAL BLOCK DIAGRAM

SWITCHES SHOWN

FOR A LOGIC 0 INPUT

ADG787

S1A

S1B

D1

IN1

S2A

S2B

D2

IN2

Figure 1.

GENERAL DESCRIPTION

The ADG787 is a low voltage, CMOS device that contains two

independently selectable single-pole, double-throw (SPDT)

switches. It is designed as a general analog-to-digital switch and

can also be used for routing USB 1.1 signals.

This device offers low on resistance of typically 2.5 Ω, making

the part an attractive solution for applications that require low

distortion through the switch.

The ADG787 comes in a 10-ball WLCSP, a tiny 10-lead LFCSP,

and a tiny 10-lead MSOP. These packages make the ADG787

the ideal solution for space-constrained applications.

Each switch conducts equally well in both directions when on

and has an input signal range that extends to the supplies. The

ADG787 exhibits break-before-make switching action.

1

20.0ns/DIV

MASK: FS (12Mbps)