DG401, DG403, DG405
Vishay Siliconix
Low-Power, High-Speed CMOS Analog Switches
DESCRIPTION
FEATURES
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 (tON: 75 ns, typ.), the DG401 series is
ideally suited for portable and battery powered industrial and
military applications.
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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.
44 V supply max. rating
± 15 V analog signal range
On-resistance - RDS(on): 30 Ω
Low leakage - ID(on): 40 pA
Fast switching - tON: 75 ns
Ultra low power requirements - PD: 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
Each switch conducts equally well in both directions when
on, and blocks up to 30 V peak-to-peak when off. Onresistance is very flat over the full ± 15 V analog range,
rivaling JFET performance without the inherent dynamic
range limitations.
APPLICATIONS
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The three devices in this series are differentiated by the type
of switch action as shown in the functional block diagrams.
Audio and video switching
Sample-and-hold circuits
Battery operation
Test equipment
Communications systems
PBX, PABX
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG401
DG401
LCC
Dual-In-Line and SOIC
NC
D1
NC
NC
NC
NC
NC
NC
D2
1
16
S1
2
15
14
NC
S1
IN1
IN1
3
D1
4
13
5
12
6
11
Key
3
20
19
4
18
V-
GND
NC
5
17
GND
VL
NC
6
16
NC
V+
NC
7
IN2
NC
8
9
8
1
NC
V-
10
7
2
S2
15
14
9
NC
Top View
10
11
D2
NC
12
S2
13
VL
V+
Two SPST Switches per Package
TRUTH TABLE
Logic
Switch
0
OFF
1
ON
Logic "0" ≤ 0.8 V
Logic "1" ≥ 2.4 V
IN2
Top View
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 70049
S09-2561-Rev. I, 30-Nov-09
www.vishay.com
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