DG401/403/405
Vishay Siliconix
Low-Power, High-Speed CMOS Analog Switches
DESCRIPTION
The DG401/403/405 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.
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
Pb-free
Available
RoHS*
COMPLIANT
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
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG401
Dual-In-Line and SOIC
NC
D
1
NC
NC
NC
NC
NC
NC
D
2
1
2
3
4
5
6
7
8
Top View
16
15
14
13
12
11
10
9
S
1
IN
1
V-
GND
V
L
V+
IN
2
S
2
NC
NC
NC
NC
NC
4
5
6
7
8
9
NC
10
Key
3
DG401
LCC
D
1
2
NC
1
S
1
20
IN
1
19
18
17
16
15
14
11
NC
12
S
2
13
IN
2
V-
GND
NC
V
L
V+
Two SPST Switches per Package
TRUTH TABLE
Logic
0
1
Logic "0"
≤
0.8 V
Logic "1"
≥
2.4 V
Switch
OFF
ON
D
2
Top View
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 70049
S-71155–Rev. H, 11-Jun-07
www.vishay.com
1
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