Vishay Siliconix
DG401, DG403, DG405
Document Number: 70049
S09-2561-Rev. I, 30-Nov-09
www.vishay.com
1
Low-Power, High-Speed CMOS Analog Switches
FEATURES
• 44 V supply max. rating
• ± 15 V analog signal range
• On-resistance - R
DS
(on): 30 Ω
• Low leakage - I
D(on)
: 40 pA
• Fast switching - t
ON
: 75 ns
• Ultra low power requirements - P
D
: 0.35 µW
• TTL, CMOS compatible
• Single supply capability
• Compliant to RoHS directive 2002/95/EC
BENEFITS
• Wide dynamic range
• Break-before-make switching action
• Simple interfacing
APPLICATIONS
• Audio and video switching
• Sample-and-hold circuits
• Battery operation
• Test equipment
• Communications systems
• PBX, PABX
DESCRIPTION
The DG401, DG403, DG405 monolithic analog switches
were designed to provide precision, high performance
switching of analog signals. Combining low power (0.35 µW,
typ.) with high speed (t
ON
: 75 ns, typ.), the DG401 series is
ideally suited for portable and battery powered industrial and
military applications.
Built on the Vishay Siliconix proprietary high-voltage
silicon-gate process to achieve high voltage rating and
superior switch on/off performance, break-before-make is
guaranteed for the SPDT configurations. An epitaxial layer
prevents latchup.
Each switch conducts equally well in both directions when
on, and blocks up to 30 V peak-to-peak when off. On-
resistance is very flat over the full ± 15 V analog range,
rivaling JFET performance without the inherent dynamic
range limitations.
The three devices in this series are differentiated by the type
of switch action as shown in the functional block diagrams.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Two SPST Switches per Package
Logic "0" ≤ 0.8 V
Logic "1" ≥ 2.4 V
* Pb containing terminations are not RoHS compliant, exemptions may apply
DG401
NC GND
NC V
L
NC V+
NC IN
2
D
2
S
2
D
1
S
1
NC
Dual-In-Line and SOIC
IN
1
NC V-
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Top View
NC
NC
V-
S
2
NC
IN
2
GND
NC
NC
D
2
NC
NC
NC
S
1
V
L
IN
1
NC
NC
V+
D
1
Key
Top View
LCC
910111213
4
5
6
7
8
1231920
14
15
16
17
18
DG401
TRUTH TABLE
Logic Switch
0 OFF
1ON
