DG408DYZ-T

Overview

The DG408DYZ-T is a single-channel, 8-to-1 CMOS analog multiplexer manufactured by Renesas Electronics. It operates within a supply voltage range of 5 V to 34 V and supports dual supplies up to ±17 V. The device features a maximum on-resistance of 100 Ω, with an接通 delay time of 180 ns and a关闭 delay time of 120 ns. Power consumption is characterized by a supply current ranging from 10 μA to 200 μA, depending on operating conditions. The component is housed in a 16-pin SOIC package with tin-plated contacts, designed for surface mount installation. It functions reliably across an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Provides eight selectable analog input channels routed to a single output via digital control logic.
• Utilizes monolithic CMOS technology to achieve low power consumption and high signal integrity.
• Features TTL and CMOS compatible digital inputs for straightforward interface with standard logic families.

Applications

• Data acquisition systems requiring multi-channel signal selection
• Medical instrumentation involving precise analog signal routing
• Automatic test equipment for switching test signals

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Renesas Electronics or Intersil, reflecting historical brand transitions. Ensure the order quantity aligns with reel specifications if continuous production is required. Cross-reference the RoHS compliance status to meet environmental regulations. Validate the lead-free certification for soldering process compatibility.

Selection Notes

Select this component when an 8:1 multiplexing ratio is required in a compact 16-pin form factor. Consider the 100 Ω on-resistance limit for applications where signal attenuation must be minimized. Evaluate the 34 V maximum supply voltage against the highest expected signal amplitude. Compare the 180 ns transition speed against system timing requirements. Ensure the SOIC-16 footprint matches the printed circuit board layout constraints.

Part Context

This part belongs to the DG40x series of analog multiplexers, which are CMOS-based replacements for older bipolar technologies. The series offers improved performance metrics such as lower charge injection and faster switching speeds compared to legacy devices like the DG506A. The DG408 variant specifically provides an 8:1 configuration, distinguishing it from the 16:1 DG406/DG407 models and the 4:1 DG409 model within the same family.

Replacement Considerations

The DG408DQ-T1-E3 from Vishay/Siliconix serves as a functional alternative, offering identical 8:1 multiplexing in a TSSOP-16 package. Verify pinout compatibility between SOIC and TSSOP packages before substitution. Check that the Vishay variant's 100 Ω on-resistance and 36 V supply limits meet the design specifications.