I2C® CMOS 8 × 10 Unbuffered Analog
Switch Array with Dual/Single Supplies
ADG2108
FEATURES
GENERAL DESCRIPTION
I2C-compatible interface
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,
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
RESET
using the LDSW command. In addition, a
option
AV switching in TV
Automotive infotainment
AV receivers
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.
CCTV
Ultrasound applications
KVM switching
Telecom applications
Test equipment/instrumentation
PBX systems
FUNCTIONAL BLOCK DIAGRAM
V
V
V
L
DD
SS
ADG2108
1
1
INPUT
SCL
REGISTER
AND
7 TO 80
LATCHES
8 × 10 SWITCH ARRAY
X0 TO X9 (I/O)
SDA
DECODER
80
80
LDSW
LDSW
A2 A1 A0
GND
Y0 TO Y7 (I/O)
Figure 1.
Rev. 0
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