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Analog Devices - I2C CMOS 8 x 10 Unbuffered Analog Switch Array

Numéro de référence ADG2108
Description I2C CMOS 8 x 10 Unbuffered Analog Switch Array
Fabricant Analog Devices 
Logo Analog Devices 





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ADG2108 fiche technique
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I2C® CMOS 8 × 10 Unbuffered Analog
Switch Array with Dual/Single Supplies
ADG2108
FEATURES
I2C-compatible interface
3.4 MHz high speed I2C option
32-lead LFCSP_VQ (5 mm × 5 mm)
Double-buffered input logic
Simultaneous update of multiple switches
Up to 300 MHz bandwidth
Fully specified at dual ±5 V/single +12 V operation
On resistance 35 Ω maximum
Low quiescent current < 20 μA
APPLICATIONS
AV switching in TV
Automotive infotainment
AV receivers
CCTV
Ultrasound applications
KVM switching
Telecom applications
Test equipment/instrumentation
PBX systems
GENERAL DESCRIPTION
The ADG2108 is an analog cross point switch with an
array size of 8 × 10. The switch array is arranged so that
there are eight columns by 10 rows, for a total of 80 switch
channels. The array is bidirectional, and the rows and columns
can be configured as either inputs or outputs. Each of the 80
switches can be addressed and configured through the I2C-
compatible interface. Standard, full speed, and high speed
(3.4 MHz) I2C interfaces are supported. Any simultaneous
switch combination is allowed. An additional feature of the
ADG2108 is that switches can be updated simultaneously,
using the LDSW command. In addition, a RESET option
allows all of the switch channels to be reset/off. At power on,
all switches are in the off condition. The device is packaged
in a 32-lead, 5 mm × 5 mm LFCSP_VQ.
ADG2108
FUNCTIONAL BLOCK DIAGRAM
VDD VSS
VL
SCL
SDA
INPUT
REGISTER
AND
7 TO 80
DECODER
1
80
1
LATCHES
80
LDSW
LDSW
8 × 10 SWITCH ARRAY
X0 TO X9 (I/O)
A2 A1 A0
GND
Y0 TO Y7 (I/O)
Figure 1.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. 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.

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