DS1020S-15/T&R

Overview

The DS1020S-15/T&R is a programmable 8-bit silicon delay line manufactured by Analog Devices Inc./Maxim Integrated. It provides a maximum delay of 48.25 ns with an incremental step of 0.15 ns and an inherent step-zero delay of 10 ns. The device operates on a single 5V supply (4.75V to 5.25V) within a commercial temperature range of 0°C to 70°C. It features both 3-wire serial and 8-bit parallel programming interfaces, housed in a 16-pin SOIC package.

Feature Summary

• Supports dual programming modes via 3-wire serial port or 8-bit parallel port for flexible system integration
• Delivers precise timing control with leading and trailing edge accuracy across 256 equal steps
• Compatible with TTL and CMOS logic levels and capable of driving standard loads

Applications

• Precision signal timing and synchronization circuits
• Programmable pulse generation systems
• Data acquisition timing control

Procurement Notes

Verify the specific suffix T&R indicates tape and reel packaging when sourcing components. Confirm that the -15 designation corresponds to the 0.15 ns step size required for the application. Ensure the operating environment remains within the specified 0°C to 70°C commercial temperature range to maintain guaranteed performance specifications.

Selection Notes

Select this model when a total delay range up to 48.25 ns is sufficient. Choose the -15 variant specifically for applications requiring fine resolution at 0.15 ns per step. Consider the 16-pin SOIC package for surface mount assembly requirements. Verify interface compatibility if daisy-chaining multiple units via the serial port is necessary.

Part Context

This component belongs to the DS1020 family of all-silicon programmable delay lines. It serves as a low-power CMOS alternative to hybrid delay lines. The series includes variants with different step sizes, such as 0.25 ns, 0.5 ns, 1 ns, and 2 ns, allowing designers to balance resolution against maximum delay capability based on specific circuit needs.

Replacement Considerations

Other models in the DS1020 series offer different step increments: DS1020-25 (0.25 ns), DS1020-50 (0.5 ns), DS1020-100 (1 ns), and DS1020-200 (2 ns). Substitution requires matching the required maximum delay and step resolution. Package variations include DIP-16 for through-hole applications.