DG401/403/405
Low-Power, High-Speed CMOS Analog Switches
Features
Benefits
Applications
D 44-V Supply Max Rating
D Wide Dynamic Range
D Audio and Video Switching
D "15-V Analog Signal Range
D On-Resistance—rDS(on): 20 W
D Low Leakage—ID(on): 40 pA
D Fast Switching—tON: 100 ns
D Low Signal Errors and Distortion
D Sample-and-Hold Circuits
D Break-Before-Make Switching Action D Battery Operation
D Simple Interfacing
D Test Equipment
D Hi-Rel Systems
D PBX, PABX
D Ultra Low Power
Requirements—PD: 0.35 mW
D TTL, CMOS Compatible
D Single Supply Capability
Description
The DG401/403/405 monolithic analog switches were for the SPDT configurations. An epitaxial layer prevents
designed to provide precision, high performance switching of latchup.
analog signals. Combining low power (0.35 mW, typ) with
high speed (t : 100 ns, typ), the DG401 series is ideally
suited for portable and battery powered industrial and military
applications.
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.
ON
Built on the Siliconix proprietary high-voltage silicon-gate
process to achieve high voltage rating and superior The three devices in this series are differentiated by the type
switch on/off performance, break-before-make is guaranteed of switch action as shown in the functional block diagrams.
Functional Block Diagrams and Pin Configurations
DG401
Dual-In-Line and SOIC
DG401
LCC
NC
NC
D
S
IN
1 1
1
D
S
1
1
Key
1
2
3
4
5
6
7
8
16
3
2
1
20 19
Two SPST Switches per Package
NC
NC
NC
NC
NC
NC
IN
1
15
14
13
12
11
10
9
4
5
6
7
8
18
17
16
Truth Table
NC
V–
V–
Logic
Switch
OFF
NC
NC
NC
NC
GND
NC
GND
0
1
V
L
ON
15
14
V
V+
IN
L
Logic “0” v 0.8 V
Logic “1” w 2.4 V
V+
2
D
S
2
2
9
10 11 12 13
NC IN
2
NC
D
S
2
2
Top View
Top View
Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70049.
Siliconix
1
S-53748—Rev. E, 05-Jun-97