DG485AZ/883

Analog Switches, Multiplexers, Demultiplexers Overview

The DG485AZ/883 is an octal analog switch array manufactured by Vishay Siliconix, featuring eight single-pole single-throw (SPST) switches connected to a common output. It operates within a wide supply voltage range of up to 44 V and supports rail-to-rail analog input signals. The device utilizes a serial interface with shift register and latch control for efficient pin usage. Key electrical parameters include a typical on-resistance of 55 Ω, a maximum turn-on time of 275 ns, and a maximum power dissipation of 800 mW in the LCC package. It functions reliably across an extended temperature range from -55 °C to +125 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Serial control architecture reduces board space and simplifies interfacing through integrated shift registers and latches.
• Rail-to-rail analog input range allows switching of full supply voltage swings without signal distortion.
• Daisy-chain capability via serial data output enables system expansion by connecting multiple arrays.

Analog Switches, Multiplexers, Demultiplexers Applications

• Audio switching and routing systems
• Data acquisition and industrial process control
• Battery powered remote systems
• Automotive, avionics and ATE systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity against Vishay Siliconix documentation due to military suffix availability. Confirm package integrity as the AZ suffix indicates a specific ceramic or metal case variant. Ensure compatibility with existing serial control logic levels before integration into production lines.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when high channel count and serial control are required. Compare on-resistance and leakage specifications against standard multiplexers if low distortion is critical. Verify that the 800 mW power dissipation rating suits the thermal design constraints of the target application environment.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the DG485 series of octal analog switch arrays. It is distinct from quad-channel variants like the DG484. The AZ/883 suffix denotes a specific qualification level and packaging format intended for rugged environments, differing from commercial plastic packages like the DJ or DN suffixes.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include other Vishay Siliconix octal switch arrays such as the DG484 if fewer channels suffice. Cross-manufacturer replacements require matching serial interface timing and voltage ratings carefully.