ad75019 Analog Devices, Inc., ad75019 Datasheet
ad75019
Manufacturer Part Number
ad75019
Description
16 X 16 Crosspoint Switch Array
Manufacturer
Analog Devices, Inc.
Datasheet
1.AD75019.pdf
(4 pages)
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a
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
PRODUCT DESCRIPTION
The AD75019 contains 256 analog switches in a 16 16 array.
Any of the X or Y pins may serve as an input or output. Any or
all of the X terminals may be programmed to connect to any or
all of the Y terminals. The switches can accommodate signals
with amplitudes up to the supply rails and have a typical on-
resistance of 150 .
Data is loaded serially via the SIN input and clocked into an on-
board 256-bit shift register via SCLK. When all the switch set-
tings have been programmed, data is transferred into a set of
256 latches via PCLK. The serial shift register is dynamic, so
there is a minimum clock rate of 20 kHz. The maximum clock
rate of 5 MHz allows loading times as short as 52 s. The switch
control latches are static and will hold their data as long as power
is applied.
REV. C
FEATURES
256 Switches in a 16
Wide Signal Range: to Supply Rails of 24 V or
Low On-Resistance: 200
TTL/CMOS/Microprocessor-Compatible Control Lines
Serial Input Simplifies Interface
Serial Output Allows Cascading for More Channels
Low Power Consumption: 2 mW Quiescent
Compact 44-Lead PLCC
16 Array
Typ
12 V
To extend the number of switches in the array, you may cascade
multiple AD75019s. The SOUT output is the end of the shift
register, and may be connected to the SIN input of the next
AD75019.
The AD75019 is fabricated in Analog Devices’ BiMOS II
process. This epitaxial BiCMOS process features CMOS
devices for low distortion switches and bipolar devices for
ESD protection.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
OUTPUTS/
ANALOG
INPUTS
Y15
Y0
X0
FUNCTIONAL BLOCK DIAGRAM
ANALOG
SWITCH
LATCHES, AND SHIFT REGISTER
CELLS (ONLY TWO LOCATIONS
16
SERIAL DATA IN
ARE SHOWN FOR CLARITY)
16 ARRAY OF SWITCHES,
INPUTS/OUTPUTS
World Wide Web Site: http://www.analog.com
LATCH
BUSED CLOCK
ANALOG
16
LINES
CELL #256
REGISTER
SHIFT
ANALOG
TO NEXT
STAGES
SERIAL
SWITCH
DATA
16 Crosspoint
X15
© Analog Devices, Inc., 1999
Switch Array
PARALLEL
AD75019
+12V –12V
CLOCK
V
DD
LATCH
PCLK
BUSED CLOCK
V
AD75019
SS
LINES
SERIAL
CLOCK
+5V DGND
V
CC
SCLK
REGISTER
CELL #1
DGND
SHIFT
STAGES
SERIAL
PRIOR
FROM
DATA
SOUT
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ad75019 Summary of contents
Page 1
... Low Power Consumption Quiescent Compact 44-Lead PLCC PRODUCT DESCRIPTION The AD75019 contains 256 analog switches array. Any of the pins may serve as an input or output. Any or all of the X terminals may be programmed to connect to any or all of the Y terminals. The switches can accommodate signals with amplitudes up to the supply rails and have a typical on- resistance of 150 ...
Page 2
... PIN CONFIGURATION PIN 1 Y15 7 IDENTIFIER Y14 8 Y13 9 Y12 10 Y11 11 AD75019 Y10 12 TOP VIEW Y9 (Not to Scale CONNECT Units MHz ...
Page 3
... The switch control latches are static and will hold their data as long as power is applied. To extend the number of switches in the array, you may cascade multiple AD75019s. The SOUT output is the end of the shift register, and may be directly connected to the SIN input of the next AD75019. ...
Page 4
... Unused devices must be stored in conductive foam or shunts. The protective foam should be discharged to the destination socket before devices are removed. Model AD75019JP *P = Plastic Leaded Chip Carrier (PLCC) Package. 0.048 (1.21) 0.042 (1.07) ...