2 LC MOS Quad SPST Switches Data Sheet ADG441/ADG442/ADG444 FEATURES FUNCTIONAL BLOCK DIAGRAM S1 S1 44 V supply maximum ratings IN1 IN1 V to V analog signal range SS DD D1 D1 S2 S2 Low on resistance (<70 ) IN2 IN2 Low R (9 max) ON ADG441 D2 D2 Low R match (3 max) ADG442 ON S3 S3 ADG444 Low power dissipation IN3 IN3 Fast switching times D3 D3 S4 S4 t < 110 ns ON IN4 IN4 t < 60 ns OFF D4 D4 Low leakage currents (3 nA max) SWITCHES SHOWN FOR A LOGIC 1 INPUT Low charge injection (6 pC max) Figure 1. Break-before-make switching action Latch-up proof A grade Each switch conducts equally well in both directions when ON Plug-in upgrade for DG201A/ADG201A, DG202A/ADG202A, and has an input signal range that extends to the power DG211/ADG211A supplies. In the OFF condition, signal levels up to the supplies Plug-in replacement for DG441/DG442/DG444 are blocked. All switches exhibit break-before-make switching action for use in multiplexer applications. Inherent in the APPLICATIONS design is the low charge injection for minimum transients when Audio and video switching switching the digital inputs. Automatic test equipment PRODUCT HIGHLIGHTS Precision data acquisition Battery-powered systems 1. Extended signal range. The ADG441A/ADG442A/ 2 Sample-and-hold systems ADG444A are fabricated on an enhanced LC MOS, Communication systems trench-isolated process, giving an increased signal range that extends to the supply rails. GENERAL DESCRIPTION 2. Low power dissipation. The ADG441, ADG442, and ADG444 are monolithic CMOS 3. Low R . ON devices that comprise of four independently selectable switches. 4. Trench isolation guards against latch-up for A grade parts. 2 They are designed on an enhanced LC MOS process that A dielectric trench separates the P and N channel provides low power dissipation yet gives high switching speed transistors thereby preventing latch-up even under severe and low on resistance. overvoltage conditions. 5. Break-before-make switching. This prevents channel The on resistance profile is very flat over the full analog input shorting when the switches are configured as a multiplexer. range, which ensures good linearity and low distortion when 6. Single-supply operation. For applications where the analog switching audio signals. High switching speed also makes the signal is unipolar, the ADG441/ADG442/ADG444 can be parts suitable for video signal switching. CMOS construction operated from a single-rail power supply. The parts are ensures ultralow power dissipation, making the parts ideally fully specified with a single 12 V power supply. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 19942014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 05233-001ADG441/ADG442/ADG444 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................5 Applications ....................................................................................... 1 ESD Caution...................................................................................5 General Description ......................................................................... 1 Pin Configuration and Function Descriptions ..............................6 Functional Block Diagram .............................................................. 1 Typical Performance Characteristics ..............................................7 Product Highlights ........................................................................... 1 Test Circuits ........................................................................................9 Revision History ............................................................................... 2 Terminology .................................................................................... 11 Specifications ..................................................................................... 3 Trench Isolation .............................................................................. 12 Dual Supply ................................................................................... 3 Outline Dimensions ....................................................................... 13 Single Supply ................................................................................. 4 Ordering Guide .......................................................................... 14 REVISION HISTORY 5/14Rev. A to Rev. B Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 14 5/05Rev. 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 4/94Revision 0: Initial Version Rev. B Page 2 of 16