Datasheet ADG431, ADG432, ADG433 (Analog Devices)

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LC2MOS Precision Quad SPST Switches ADG431/ADG432/ADG433 FEATURES FUNCTIONAL BLOCK DIAGRAMS 44 V Supply Maximum Ratings S1 S1 15 V Analog Signal Range IN1 IN1 Low On Resistance (<24 ) D1 D1 Ultralow Power Dissipation (3.9 W) S2 S2 IN2 IN2 Low Leakage (<0.25 nA) D2 D2 Fast Switching Times ADG431 ADG432 S3 S3 tON <165 ns IN3 IN3 tOFF <130 ns D3 D3 Break-Before-Make Switching Action S4 S4 IN4 IN4 TTL/CMOS Compatible D4 D4 Plug-in Replacement for DG411/DG412/DG413 S1 APPLICATIONS IN1 Audio and Video Switching D1 Automatic Test Equipment S2 Precision Data Acquisition IN2 D2 Battery Powered Systems ADG433 S3 Sample Hold Systems IN3 Communication Systems D3 S4 IN4 D4 GENERAL DESCRIPTION
The ADG431, ADG432 and ADG433 are monolithic CMOS
SWITCHES SHOWN FOR A LOGIC "1" INPUT
devices comprising four independently selectable switches. They are designed on an enhanced LC2MOS process which provides low power dissipation yet gives high switching speed and low on
PRODUCT HIGHLIGHTS
resistance. 1. Extended Signal Range The ADG431, ADG432 and ADG433 are fabricated on an The on resistance profile is very flat over the full analog input enhanced LC2MOS process giving an increased signal range range ensuring excellent linearity and low distortion when which extends fully to the supply rails. switching audio signals. Fast switching speed coupled with high signal bandwidth also make the parts suitable for video signal 2. Ultralow Power Dissipation switching. CMOS construction ensures ultralow power dissipa- 3. Low RON tion making the parts ideally suited for portable and battery 4. Break-Before-Make Switching powered instruments. This prevents channel shorting when the switches are config- The ADG431, ADG432 and ADG433 contain four indepen- ured as a multiplexer. dent SPST switches. The ADG431 and ADG432 differ only in 5. Single Supply Operation that the digital control logic is inverted. The ADG431 switches For applications where the analog signal is unipolar, the are turned on with a logic low on the appropriate control input, ADG431, ADG432, and ADG433 can be operated from a while a logic high is required for the ADG432. The ADG433 single rail power supply. The parts are fully specified with a has two switches with digital control logic similar to that of the single 12 V power supply and will remain functional with ADG431 while the logic is inverted on the other two switches. single supplies as low as 5 V. Each switch conducts equally well in both directions when ON and has an input signal range which extends to the 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 low charge injection for minimum transients when switching the digital inputs. REV. C 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
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