ADG2128_15 Datasheet, PDF (1/28 Pages) Analog Devices – Switch Array With Dual/Single Supplies

Data Sheet
I²C^® CMOS 8 × 12 Unbuffered Analog
Switch Array With Dual/Single Supplies
ADG2128
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
Qualified for automotive applications
APPLICATIONS
AV switching in TV
Automotive infotainment
AV receivers
CCTV
Ultrasound applications
KVM switching
Telecom applications
Test equipment/instrumentation
PBX systems
GENERAL DESCRIPTION
The ADG2128 is an analog cross point switch with an
array size of 8 × 12. The switch array is arranged so that
there are eight columns by 12 rows, for a total of 96 switch
channels. The array is bidirectional, and the rows and columns
can be configured as either inputs or outputs. Each of the 96
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
ADG2128 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.
ADG2128
FUNCTIONAL BLOCK DIAGRAM
V_DD V_SS
V_L
SCL
SDA
INPUT
1
REGISTER
AND
7 TO 96
DECODER
96
1
LATCHES
96
LDSW
LDSW
8 × 12 SWITCH ARRAY
A2 A1 A0
GND
Figure 1.
Y0 TO Y7 (I/O)
X0 TO X11 (I/O)
Rev. D
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