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DG485AZ/883 Datasheet

  • DG485AZ/883

  • Octal Analog Switch Array

  • 11頁(yè)

  • VISHAY   VISHAY

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DG485
Vishay Siliconix
Octal Analog Switch Array
FEATURES
D
D
D
D
D
D
Low On-Resistance: 55
W
Rail-to-Rail Analog Input Range
Serial Interface
Low-Power鈥擯
D
: 35 nW
TTL and CMOS Compatible
Any Combination of 8 SPST to the
Output
D
High Speed鈥攖
ON
: 170 ns
BENEFITS
D
Low Signal Distortion
D
Devices Can Be Chained for System
Expansion
D
Reduced Board Space
D
Reduced Switch Errors
D
Reduced Power Supply
Requirements
D
Simple Interfacing
APPLICATIONS
D
Audio Switching and Routing
D
Audio Teleconferencing
D
Data Acquisition and Industrial
Process Control
D
Battery Powered Remote Systems
D
Automotive, Avionics and ATE
Systems
D
Summing Amplifiers
DESCRIPTION
The DG485 is an analog switch array consisting of eight SPST
switches connected to a common output. This device may be
used as an 8-channel multiplexer in serial control applications.
Any, all or none of the eight switches may be closed at any
given time. Combining low on-resistance (r
DS(on)
55
W
, typ.)
and fast switching (t
ON
: 170 ns, typ.), the DG485 is ideally
suited for data acquisition, process control, communication,
and avionic applications.
serial output (D
OUT
) allow daisy chaining of multiple arrays for
large systems.
Built on the Vishay Siliconix high voltage silicon gate process
the DG485 has a wide 44-V power supply voltage rating. An
epitaxial layer prevents latchup.
Control data is input serially into the shift register with each
clock pulse. The shift register contents can be latched-in (via
LD) at any point into an octal latch which in turn controls all
switches. RS resets the shift register, forcing all latch inputs to
a low condition (all switches off). The serial input (D
IN
) and
Each channel conducts equally well in either direction when on
and blocks up to rail-to-rail voltages when off.
For additional information please refer to application note
AN204.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line
LD
V
L
S
4
S
3
S
2
S
1
V+
D
IN
CLK
RS
GND
D
S
5
S
6
S
7
S
8
V鈥?/div>
D
OUT
S
4
S
3
S
2
S
1
V+
4
5
6
7
8
Shift Register/Latches
9
D IN
10 11 12 13
CLK
DOUT
NC
V鈥?/div>
18
17
16
15
14
D
S
5
S
6
S
7
S
8
PLCC and LCC
GND
www.vishay.com
S
FaxBack 408-970-5600
VL
NC
1
RS
LD
2
1
2
3
4
5
6
7
8
9
Shift Register
Latches
18
17
16
15
14
13
12
11
10
3
20 19
Top View
Top View
Document Number: 70065
S-52433鈥擱ev. E, 06-Sep-99
5-1

DG485AZ/883 產(chǎn)品屬性

  • 0現(xiàn)貨

  • 停產(chǎn)

  • -

  • 管件

  • 停產(chǎn)

  • SPST - 常開(kāi)/常閉

  • 1：1

  • 8

  • 85 歐姆

  • 5.1 歐姆

  • -

  • ±15V

  • 200ns，200ns

  • -

  • 17pC

  • 7pF，43pF

  • 1nA

  • -

  • -55°C ~ 125°C（TA）

  • 表面貼裝型

  • 20-LCC

  • 20-LCC（8.89x8.89）

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