DG308A/DG309
Vishay Siliconix
Quad Monolithic SPST CMOS Analog Switches
FEATURES
D
D
D
D
D
"15-V
Analog Input Range
Low On-Resistance: 60
W
Fast Switching: 130 ns
Low Power Dissipation: 30 nW
CMOS Logic Compatible
BENEFITS
D
D
D
D
D
D
Full Rail-to-Rail Analog Signal Range
Low Signal Error
Wide Dynamic Range
Single or Dual Supply Capability
Static Protected Logic Inputs
Space Savings (TSSOP)
APPLICATIONS
D
Portable and Battery Powered
Instrumentation
D
Communication Systems
D
Computer Peripherals
D
High-Speed Multiplexing
DESCRIPTION
Featuring low on-resistance (60
W)
and fast switching
(130 ns), the DG308A is supplied in the “normally open”
configuration while DG309 is supplied “normally closed.” Input
thresholds are high voltage CMOS compatible.
Designed with the Vishay Siliconix PLUS-40 CMOS process
to combine low power dissipation with a high breakdown
voltage rating of 44 V, each switch conducts equally well in
both directions when on, and blocks up to the supply voltage
when off. An epitaxial layer prevents latch up.
The DG308B/309B upgrades are recommended for new
designs.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG308A
IN
1
D
1
S
1
V–
GND
S
4
D
4
IN
4
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN
2
D
2
S
2
V+
NC
S
3
D
3
IN
3
Four SPST Switches per Package
TRUTH TABLE
Logic
0
1
DG308A
OFF
ON
Logic “0”
v
3.5 V
Logic “1”
w
11 V
DG309
ON
OFF
Top View
Document Number: 70046
S-52882—Rev. E, 28-Apr-97
www.vishay.com
S
FaxBack 408-970-5600
4-1
VISHAY [ VISHAY TELEFUNKEN ]
