DG444B, DG445B
Vishay Siliconix
Improved Quad SPST CMOS Analog Switches
FEATURES
DESCRIPTION
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Halogen-free according to IEC 61249-2-21
Definition
The DG444B, DG445B are monolithic quad analog switches
designed to provide high speed, low error switching of analog
and audio signals. The DG444B, DG445B are upgrades to
the original DG444, DG445.
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Low On-Resistance: 45 W
Low Power Consumption: 1 mW
Fast Switching Action - tON: 120 ns
Low Charge Injection
TTL/CMOS-Compatible Logic
Compliant to RoHS Directive 2002/95/EC
Combing low on-resistance (45 , typ.) with high speed
(tON 120 ns, typ.), the DG444B, DG445B are ideally suited
for Data Acquisition, Communication Systems, Automatic
Test Equipment, or Medical Instrumentation. Charge
injection has been minimized on the drain for use in
sample-and-hold circuits.
BENEFITS
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Low Signal Errors and Distortion
Reduced Power Supply Consumption
Faster Throughput
Reduced Pedestal Errors
Simple Interfacing
The DG444B, DG445B are built using Vishay Siliconix’s
high-voltage silicon-gate process. An epitaxial layer prevents
latchup.
APPLICATIONS
When on, each switch conducts equally well in both
directions and blocks input voltages to the supply levels
when off.
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Audio Switching
Data Acquisition
Sample-and-Hold Circuits
Communication Systems
Automatic Test Equipment
Medical Instruments
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG444B
Dual-In-Line and SOIC
IN
D
IN
D
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2
1
1
1
TRUTH TABLE
2
Logic
DG444B
ON
DG445B
OFF
S
S
2
0
1
V+
V-
OFF
ON
V
L
GND
Logic "0" 0.8 V
Logic "1" 2.4 V
S
3
S
4
D
4
D
3
IN
4
IN
3
Top View
DG444B
QFN16 (4 x 4 mm)
ORDERING INFORMATION
D
1
IN IN
D
2
1
2
Temp Range
Package
Part Number
16 15 14 13
DG444BDJ
DG444BDJ-E3
DG445BDJ
S
1
2
3
4
S
16-pin Plastic DIP
12
1
2
V-
V+
11
10
9
DG445BDJ-E3
DG444BDY-E3
DG444BDY-T1-E3
DG445BDY-E3
DG445BDY-T1-E3
DG444BDN-T1-E4
DG445BDN-T1-E4
V
L
GND
- 40 °C to 85 °C
S
4
S
3
16-pin Narrow SOIC
16 pin QFN 4 x 4 mm
5
6
7
8
D
IN IN
D
3
4
4
3
Top View
Document Number: 72626
S11-1350-Rev. B, 04-Jul-11
www.vishay.com
1
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000