DG535DJ

Analog Switches - Special Purpose Overview

The DG535DJ is a 16-channel wideband video multiplexer manufactured by Vishay Siliconix. It operates on a single positive supply voltage ranging from 10 V to 16.5 V, with a typical power consumption of 75 µW. The device features an on-resistance (rDS(on)) maximum of 90 Ω at room temperature and up to 120 Ω across the full operating range. It provides a bandwidth of 500 MHz and achieves -100 dB crosstalk at 5 MHz. Switching characteristics include a transition time of 300 ns, turn-on time of 300 ns, and turn-off time of 150 ns. The component is housed in a 28-pin Plastic DIP package and supports an operating temperature range of -40 °C to +85 °C.

Analog Switches - Special Purpose Feature Summary

• Integrates on-chip address latches and decode logic to simplify microprocessor bus interfacing.
• Utilizes n-channel DMOS 'T' switches to achieve high bandwidth and low crosstalk performance.
• Features break-before-make switching capability to prevent momentary shorting during channel transitions.
• Includes a dedicated Disable Output (DIS) pin that signals external circuitry when any channel is selected.

Analog Switches - Special Purpose Applications

• Video switching and routing systems
• High-speed data routing applications
• RF signal multiplexing
• Precision data acquisition circuits
• Crosspoint arrays and FLIR systems

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to confirm compliance status and termination finish. The standard DG535DJ designation indicates non-RoHS compliant terminations, while the DG535DJ-E3 variant denotes RoHS compliance. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Analog Switches - Special Purpose Selection Notes

Select this component for designs requiring a single-ended 16:1 multiplexer with integrated control logic. Ensure the application signal remains within the specified analog input range relative to ground to avoid forward biasing internal PN junctions. Verify that the required bandwidth and crosstalk specifications align with the 500 MHz and -100 dB limits provided in the datasheet.

Analog Switches - Special Purpose Part Context

The DG535DJ belongs to the Vishay Siliconix DG535/536 family of wideband video multiplexers. It is functionally identical to the DG536 but differs in physical packaging, utilizing a 28-pin Plastic DIP instead of the 44-pin PLCC or Cerquad packages offered by the DG536. Both devices share the same internal architecture and electrical specifications.

Analog Switches - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official Vishay documentation for recommended alternatives or updated product line replacements.

Analog Switches - Special Purpose FAQ

How does the DG535DJ handle negative input voltages?

Negative voltages relative to the GND pin can forward bias the internal PN junction between the substrate and drain/source terminals. To prevent distortion, DC biasing is recommended for AC signals, ensuring inputs remain positive with respect to ground.

What is the function of the DIS pin?

The DIS pin is an open-drain output that provides a low impedance connection to analog ground when any channel is selected. It remains high impedance when no channel is selected, allowing it to signal external circuitry regarding the switch state.

How is the address latch controlled?

The address latches are level-triggered by the Strobe (ST) input. When ST is high, the latches are transparent; when ST goes low, the binary address present on A0-A3 is latched. Selection also requires EN and CS to be high and CS_bar to be low.