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ADG787 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADG787
Description  2.5 OHM CMOS Low Power Dual 2:1 Mux/Demux USB 1.1 Switch
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADG787 Datasheet(HTML) 1 Page - Analog Devices

 
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2.5 Ω CMOS Low Power
Dual 2:1 Mux/Demux USB 1.1 Switch
ADG787
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
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
VIN = 3V p-p
TA = 25°C
MASK: FS (12Mbps)
Figure 2. Eye Pattern; 12 Mbps, VDD = 4.2 V, PRBS 31


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