DG401/403/405
Low-Power, High-Speed CMOS Analog Switches
Features
D
D
D
D
D
D
44-V Supply Max Rating
"15-V
Analog Signal Range
On-Resistance—r
DS(on)
: 20
W
Low Leakage—I
D(on)
: 40 pA
Fast Switching—t
ON
: 100 ns
Ultra Low Power
Requirements—P
D
: 0.35
mW
D
TTL, CMOS Compatible
D
Single Supply Capability
Benefits
D
D
D
D
Wide Dynamic Range
Low Signal Errors and Distortion
Break-Before-Make Switching Action
Simple Interfacing
Applications
D
D
D
D
D
D
Audio and Video Switching
Sample-and-Hold Circuits
Battery Operation
Test Equipment
Hi-Rel Systems
PBX, PABX
Description
The DG401/403/405 monolithic analog switches were
designed to provide precision, high performance switching of
analog signals. Combining low power (0.35
mW,
typ) with
high speed (t
ON
: 100 ns, typ), the DG401 series is ideally
suited for portable and battery powered industrial and military
applications.
Built on the 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 Diagrams and Pin Configurations
DG401
Dual-In-Line and SOIC
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
Key
4
5
6
7
8
9
10
11
12
13
LCC
NC D
1
NC S
1
IN
1
3
2
1
20
19
18
17
16
15
14
V–
GND
NC
V
L
V+
Two SPST Switches per Package
DG401
Truth Table
Logic
0
1
Switch
OFF
ON
Logic “0”
v
0.8 V
Logic “1”
w
2 4 V
2.4
NC D
2
NC S
2
IN
2
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
S-53748—Rev. E, 05-Jun-97
1
TEMIC [ TEMIC SEMICONDUCTORS ]
