DG444_11 Datasheet, PDF (1/12 Pages) Vishay Siliconix – Quad SPST CMOS Analog Switches

DG444, DG445
Vishay Siliconix
Quad SPST CMOS Analog Switches
APPLICATIONS
• Audio switching
• Battery powered systems
• Data acquisition
• Sample-and-hold circuits
• Telecommunication systems
• Automatic test equipment
• Single supply circuits
• Hard disk drives
DESCRIPTION
The DG444, DG445 monolithic quad analog switches are
designed to provide high speed, low error switching of analog
signals. The DG444 has a normally closed function. The
DG445 has a normally open function. Combining low power
(22 nW, typ) with high speed (t_ON: 120 ns, typ.), the DG444,
DG445 are ideally suited for upgrading DG211, DG212
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 DG444, DG445 are built on Vishay
Siliconix’s 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.
FEATURES
• Low on-resistance: 50 
• Low leakage: 80 pA
• Low power consumption: 22 nW
• Fast switching action - t_ON: 120 ns
• Low charge injection
• DG211, DG212 upgrades
• TTL/CMOS logic compatible
BENEFITS
• Low signal errors and distortion
• Reduced power supply requirements
• Faster throughput
• Improved reliability
• Reduced pedestal errors
• Simple interfacing
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line and SOIC
IN₁
1
D₁
2
S₁
3
V-
4
GND
5
S₄
6
D₄
7
IN₄
8
DG444
Top View
16 IN2
15 D2
14 S2
13 V+
12 VL
11 S3
10 D3
9 IN3
TRUTH TABLE
Logic
0
1
Logic "0" 0.8 V
Logic "1" 2.4 V
DG444
On
Off
ORDERING INFORMATION
Temp. Range
Package
- 40 °C to 85 °C
16-pin plastic DIP
16-pin narrow SOIC
DG445
Off
On
Part Number
DG444DJ
DG445DJ
DG444DY
DG445DY
Document Number: 70054
www.vishay.com
S11-0984-Rev. G, 23-May-11
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