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Analog Devices Semiconductor Electronic Components Datasheet

ADG441 Datasheet

LC2MOS Quad SPST Switches

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Data Sheet
FEATURES
44 V supply maximum ratings
VSS to VDD analog signal range
Low on resistance (<70 Ω)
Low ΔRON (9 Ω max)
Low RON match (3 Ω max)
Low power dissipation
Fast switching times
tON < 110 ns
tOFF < 60 ns
Low leakage currents (3 nA max)
Low charge injection (6 pC max)
Break-before-make switching action
Latch-up proof A grade
Plug-in upgrade for DG201A/ADG201A, DG202A/ADG202A,
DG211/ADG211A
Plug-in replacement for DG441/DG442/DG444
APPLICATIONS
Audio and video switching
Automatic test equipment
Precision data acquisition
Battery-powered systems
Sample-and-hold systems
Communication systems
GENERAL DESCRIPTION
The ADG441, ADG442, and ADG444 are monolithic CMOS
devices that comprise of four independently selectable switches.
They are designed on an enhanced LC2MOS process that
provides low power dissipation yet gives high switching speed
and low on resistance.
The on resistance profile is very flat over the full analog input
range, which ensures good linearity and low distortion when
switching audio signals. High switching speed also makes the
parts suitable for video signal switching. CMOS construction
ensures ultralow power dissipation, making the parts ideally
suited for portable and battery-powered instruments. The
ADG441, ADG442, and ADG444 contain four independent
SPST switches. Each switch of the ADG441 and ADG444 turns
on when a logic low is applied to the appropriate control input.
The ADG442 switches are turned on with logic high on the
appropriate control input. The ADG441 and ADG444 switches
differ in that the ADG444 requires a 5 V logic power supply
that is applied to the VL pin. The ADG441 and ADG442 do not
have a VL pin, the logic power supply is generated internally by
an on-chip voltage generator.
Rev. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
LC2MOS Quad SPST Switches
ADG441/ADG442/ADG444
FUNCTIONAL BLOCK DIAGRAM
S1 S1
IN1 IN1
D1 D1
S2 S2
IN2
ADG441
ADG444
IN3
IN2
D2
S3
IN3
ADG442
D2
S3
D3 D3
S4 S4
IN4 IN4
D4 D4
SWITCHES SHOWN FOR A LOGIC 1 INPUT
Figure 1.
Each switch conducts equally well in both directions when ON
and has an input signal range that extends to the power
supplies. In the OFF condition, signal levels up to the supplies
are blocked. All switches exhibit break-before-make switching
action for use in multiplexer applications. Inherent in the
design is the low charge injection for minimum transients when
switching the digital inputs.
PRODUCT HIGHLIGHTS
1. Extended signal range. The ADG441A/ADG442A/
ADG444A are fabricated on an enhanced LC2MOS,
trench-isolated process, giving an increased signal range
that extends to the supply rails.
2. Low power dissipation.
3. Low RON.
4. Trench isolation guards against latch-up for A grade parts.
A dielectric trench separates the P and N channel
transistors thereby preventing latch-up even under severe
overvoltage conditions.
5. Break-before-make switching. This prevents channel
shorting when the switches are configured as a multiplexer.
6. Single-supply operation. For applications where the analog
signal is unipolar, the ADG441/ADG442/ADG444 can be
operated from a single-rail power supply. The parts are
fully specified with a single 12 V power supply.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1994–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

ADG441 Datasheet

LC2MOS Quad SPST Switches

No Preview Available !

ADG441/ADG442/ADG444
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Dual Supply ................................................................................... 3
Single Supply ................................................................................. 4
REVISION HISTORY
5/14—Rev. A to Rev. B
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 14
5/05—Rev. 0 to Rev. A
Changes to Format .............................................................Universal
Deleted CERDIP Package and T Grade ..........................Universal
Changes to Features and Product Highlights ............................... 1
Changes to Test Conditions in Table 2 .......................................... 4
Changes to Figure 11........................................................................ 8
Changes to Trench Isolation Section ........................................... 12
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 14
4/94–Revision 0: Initial Version
Data Sheet
Absolute Maximum Ratings ............................................................5
ESD Caution...................................................................................5
Pin Configuration and Function Descriptions..............................6
Typical Performance Characteristics ..............................................7
Test Circuits........................................................................................9
Terminology .................................................................................... 11
Trench Isolation .............................................................................. 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
Rev. B | Page 2 of 16


Part Number ADG441
Description LC2MOS Quad SPST Switches
Maker Analog Devices
Total Page 16 Pages
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