DS1020-15

Overview

The DS1020-15 is a programmable 8-bit silicon delay line manufactured by Analog Devices Inc./Maxim Integrated. It provides a total of 256 equal delay steps with an incremental step size of 0.15 ns. The device offers a maximum available delay of 48.25 ns and includes an inherent step-zero delay of 10 ns. It operates on a single +5V supply (4.75V to 5.25V) within a commercial temperature range of 0°C to 70°C. The IC supports both 3-wire serial and 8-bit parallel programming interfaces, features TTL/CMOS compatibility, and is housed in a standard 16-pin SOIC package.

Feature Summary

• Programmable delay generation using either a 3-wire serial port or an 8-bit parallel port interface
• High accuracy on both leading and trailing signal edges
• TTL and CMOS logic compatible input/output levels
• Supports daisy-chaining multiple units for expanded serial programming

Applications

• Precision timing control in digital systems
• Signal synchronization and pulse stretching
• Test equipment requiring variable delay adjustments

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and compliance status. Confirm availability as this component may be discontinued. Ensure the ordering suffix matches the required physical footprint and environmental specifications before procurement.

Selection Notes

Select the DS1020-15 when a maximum delay near 48 ns is required. Compare step sizes if longer delays are needed; other models offer larger increments. Ensure the design accommodates the 10 ns inherent base delay. Verify that the 16-pin SOIC package fits the board layout constraints.

Part Context

This component belongs to the DS1020 family of all-silicon programmable delay lines. The series includes variants with different step sizes ranging from 0.15 ns to 2 ns. These devices serve as economical alternatives to hybrid programmable delay lines, offering low-power CMOS operation and auto-insertable packaging options.

Replacement Considerations

Check for direct substitutes within the DS1020 family with different step sizes. Verify pinout compatibility if considering alternative delay line ICs. Consult manufacturer announcements for end-of-life notifications and recommended replacement strategies.