DG441/442
Quad SPST CMOS Analog Switches
Features
D
D
D
D
D
D
D
D
Low On-Resistance: 50
W
Low Leakage: 80 pA
Low Power Consumption: 0.2 mW
Fast Switching Action鈥攖
ON
: 150 ns
Low Charge Injection鈥擰: 鈥? pC
DG201A/DG202 Upgrades
TTL/CMOS-Compatible Logic
Single Supply Capability
Benefits
D
Less Signal Errors and Distortion
D
Reduced Power Supply
Requirements
D
Faster Throughput
D
Improved Reliability
D
Reduced Pedestal Errors
D
Simplifies Retrofit
D
Simple Interfacing
Applications
D
D
D
D
D
D
D
D
Audio Switching
Battery Powered Systems
Data Acquisition
Hi-Rel Systems
Sample-and-Hold Circuits
Communication Systems
Automatic Test Equipment
Medical Instruments
Description
The DG441/442 monolithic quad analog switches are
designed to provide high speed, low error switching of
analog and audio signals. The DG441 has a normally closed
function. The DG442 has a normally open function.
Combining low on-resistance (50
W,
typ.) with high speed
(t
ON
150 ns, typ.), the DG441/442 are ideally suited for
upgrading DG201A/202 sockets. Charge injection has been
minimized on the drain for use in sample-and-hold circuits.
To achieve high voltage ratings and superior switching
performance, the DG441/442 are built on Siliconix鈥檚
high-voltage silicon-gate process. An epitaxial layer
prevents latchup.
Each switch conducts equally well in both directions when
on, and blocks input voltages to the supply levels when off.
Functional Block Diagram and Pin Configuration
1
2
3
4
5
6
7
8
Dual-In-Line and SOIC
16
15
14
13
12
11
10
9
IN
1
D
1
S
1
V鈥?/div>
GND
S
4
D
4
IN
4
IN
2
D
2
S
2
V+
NC
S
3
S
4
D
3
IN
3
Key
4
5
6
7
8
9
10
11
12
13
LCC
D
1
IN
1
NC IN
2
D
2
3
2
1
20
19
18
17
16
15
14
S
2
V+
NC
NC
S
3
S
1
V鈥?/div>
NC
GND
DG441
Top View
DG441
Top View
D
4
IN
4
NC IN
3
D
3
Truth Table
Logic
0
1
DG441
ON
OFF
DG442
OFF
ON
Logic 鈥?鈥?/div>
v
0.8 V
Logic 鈥?鈥?/div>
w
2.4 V
Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70053.
Siliconix
S-52880鈥擱ev. F, 28-Apr-97
1
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