DG508BEY-T1-E3

Overview

The DG508BEY-T1-E3 is a precision single 8:1 CMOS analog multiplexer manufactured by Vishay Siliconix. It connects one of eight inputs to a common output via a 3-bit binary address (A0, A1, A2). The device operates with single or dual power supplies ranging from ±5 V to ±20 V, or up to 44 V single supply. It features an enable (EN) function for switching all channels off and TTL-compatible control inputs. Fabricated on an enhanced SG-II CMOS process, it offers low leakage, reduced charge injection, and minimized parasitic capacitance. The component is housed in a 16-lead Narrow SOIC package and supports an extended operating temperature range from -40 °C to +125 °C.

Feature Summary

• Break-before-make switching action prevents momentary crosstalk between adjacent channels.
• Enhanced SG-II CMOS process achieves improved performance with reduced charge injection and lower device leakage.
• Epitaxial layer design prevents latch-up under stress conditions.
• Enable function allows the user to reset the multiplexer to all switches off for stacking multiple devices.

Applications

• High speed and high precision data acquisition systems
• Audio signal switching and routing
• Automated test equipment (ATE) systems
• Avionics and remote instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature rating. Confirm RoHS compliance status through official Vishay material categorization documents prior to procurement. Cross-reference the part number with authorized distributors to validate authenticity and traceability codes.

Selection Notes

Select this component when a single-ended 8-channel configuration is required within a 16-lead surface-mount footprint. Ensure the application voltage does not exceed the absolute maximum rating of 44 V. Verify that the logic interface requirements align with the specified TTL-compatible input thresholds across the full operating temperature range.

Part Context

This part belongs to the DG508B/DG509B family of precision analog multiplexers. The DG508B variant provides a single 8:1 channel configuration, whereas the DG509B offers a dual 4:1 differential setup. Both share identical fabrication processes and pinouts, differing primarily in internal channel architecture and address decoding logic.

Replacement Considerations

Vishay lists ADG508A, DG508A, and HI-508 as comparable alternatives. Verify pin compatibility and electrical specifications before substitution. Note that while these parts share functional similarities, exact parameter matching requires datasheet comparison.

FAQ

What is the maximum power supply voltage rating?

The absolute maximum voltage rating for the DG508BEY-T1-E3 is extended to 44 V.

How does the device handle channel switching to prevent interference?

It utilizes break-before-make switching action to protect against momentary crosstalk between adjacent channels during state transitions.

Is the control logic compatible with standard TTL levels?

Yes, all control inputs, addresses, and the enable function are TTL compatible over the full specified operating temperature range.