Vishay Siliconix
DG417B, DG418B, DG419B
Document Number: 72107
S09-1261-Rev. D, 13-Jul-09
www.vishay.com
1
Precision Monolithic Quad SPST CMOS Analog Switches
DESCRIPTION
The DG417B, DG418B, DG419B monolithic CMOS analog
switches were designed to provide high performance
switching of analog signals. Combining low power, low
leakages, high speed, low on-resistance and small physical
size, the DG417B series is ideally suited for portable and
battery powered industrial and military applications requiring
high performance and efficient use of board space.
To achieve high-voltage ratings and superior switching
performance, the DG417B series is built on Vishay
Siliconix’s high voltage silicon gate (HVSG) process. Break-
before-make is guaranteed for the DG419B, which is an
SPDT configuration. An epitaxial layer prevents latchup.
Each switch conducts equally well in both directions when
on, and blocks up to the power supply level when off.
The DG417B and DG418B respond to opposite control logic
levels as shown in the Truth Table.
FEATURES
• ± 15 V analog signal range
• On-resistance - R
DS(on)
: 15 Ω
• Fast switching action - t
ON
: 110 ns
• TTL and CMOS compatible
• MSOP-8 and SOIC-8 package
• Compliant to RoHS directive 2002/95/EC
BENEFITS
• Widest dynamic range
• Low signal errors and distortion
• Break-before-make switching action
• Simple interfacing
• Reduced board space
• Improved reliability
APPLICATIONS
• Precision test equipment
• Precision instrumentation
• Battery powered systems
• Sample-and-hold circuits
• Military radios
• Guidance and control systems
• Hard disk drivers
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Logic "0" ≤ 0.8 V
Logic "1" ≥ 2.4 V
Logic "0" ≤ 0.8 V
Logic "1" ≥ 2.4 V
* Pb containing terminations are not RoHS compliant, exemptions may apply
1
Dual-In-Line, SOIC-8 and MSOP-8
S D
V-
GND IN
V+ V
L
2
3
4
8
7
6
5
To
View
D
417B
No connect
TRUTH TABLE
Logic DG417B DG418B
0 ON OFF
1OFFON
1
Dual-In-Line, SOIC-8 and MSOP-8
DS
2
S
1
V-
GNDIN
V+ V
L
2
3
4
8
7
6
5
Top View
DG419B
TRUTH TABLE - DG419B
Logic
SW
1
SW
2
0 ON OFF
1OFFON
