DS1020S-50

Overview

The DS1020S-50+ is a programmable 8-bit silicon delay line manufactured by Analog Devices Inc./Maxim Integrated. It provides a total delay range of 137.5 ns with 256 equal steps, each incrementing by 500 ps. The inherent step-zero delay is 10 ns. The device operates on a single 4.75V to 5.25V supply and features TTL/CMOS-compatible inputs and outputs. It supports both 3-wire serial and 8-bit parallel programming interfaces. The component is housed in a 16-pin SOIC package and functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Supports dual programming modes via 3-wire serial port or 8-bit parallel port for flexible timing configuration.
• Provides accurate leading and trailing edge reproduction without signal inversion.
• Features low-power CMOS architecture compatible with standard TTL and CMOS logic families.

Applications

• Precision timing control in digital systems requiring adjustable delays.
• Pulse width modulation generation using the internal reference output.
• Cascaded multi-device timing chains utilizing serial daisy-chain capabilities.

Procurement Notes

Verify the specific suffix designation against official documentation to confirm package type and environmental compliance. Confirm current availability status as distribution channels may vary. Ensure the ordering part number matches the required voltage and temperature specifications for the target application environment.

Selection Notes

Select this model when a maximum delay of 137.5 ns with 500 ps resolution is required. Compare against other DS1020 variants if different step sizes or total delay ranges are needed. Ensure the design accommodates the 50 µs settling time following any delay value changes. Verify interface compatibility with either serial or parallel control logic.

Part Context

This component belongs to the DS1020 family of all-silicon programmable delay lines. It serves as an economical alternative to hybrid delay lines, offering space-saving surface mount options alongside traditional DIP packages. The series includes models with varying step increments ranging from 0.15 ns to 2 ns.

Replacement Considerations

DS1020S-15+, DS1020S-25+, DS1020S-100+, DS1020S-200+