DS1020-50

Overview

The DS1020-50 is a programmable 8-bit silicon delay line manufactured by Analog Devices Inc./Maxim Integrated. It provides 256 equal delay steps with an incremental step size of 0.5 ns and a total maximum delay of 137.5 ns. The device features an inherent step-zero delay of 10 ns ± 2 ns, with a maximum deviation from the programmed delay of ±8 ns. It operates on a single +5V supply (4.75V to 5.25V) within a commercial temperature range of 0°C to 70°C. Available in a 16-pin SOIC package, it supports both 3-wire serial and 8-bit parallel programming interfaces for flexible timing control.

Feature Summary

• All-silicon CMOS construction offering a reliable alternative to hybrid delay lines
• Programmable via either a 3-wire serial port or an 8-bit parallel interface
• Maintains accuracy on both leading and trailing signal edges
• Compatible with TTL and CMOS logic families

Applications

• Precision timing circuits requiring adjustable delays
• Pulse width modulation systems
• Signal processing applications needing edge synchronization

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and electrical tolerances. Confirm availability status as older components may be discontinued. Ensure the ordering code matches the required delay increment and operating temperature range specified in the manufacturer's datasheet before finalizing procurement.

Selection Notes

Select the DS1020-50 when a 0.5 ns resolution is required. Compare against other models like the -15 or -100 if different step sizes are needed. Verify that the 137.5 ns maximum delay meets system requirements. Check interface compatibility for serial or parallel programming modes during design integration.

Part Context

The DS1020 series includes variants with step sizes ranging from 0.15 ns to 2 ns. The DS1020-50 specifically utilizes a 0.5 ns step size. Other models include the DS1020-15, DS1020-25, DS1020-100, and DS1020-200. All share the same 8-bit architecture and dual programming capabilities.

Replacement Considerations

Public confirmed substitute part numbers: None identified.