DS1020S-15

Overview

The DS1020S-15 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 supports both 3-wire serial and 8-bit parallel programming interfaces, features TTL/CMOS compatibility, and is 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 timing configuration
• Provides accurate leading and trailing edge reproduction without signal inversion
• Features low-power CMOS construction with standard 16-pin surface mount packaging

Applications

• Precision timing adjustments in digital logic circuits
• Programmable delay generation for test and measurement equipment
• Signal synchronization in high-speed data processing systems

Procurement Notes

Verify the specific suffix 'S' confirms the 16-pin SOIC surface-mount package variant rather than the DIP version. Confirm the '-15' designation matches the required 0.15 ns step size and 48.25 ns maximum delay specifications. Ensure the operating environment remains within the 0°C to 70°C commercial temperature range and that the power supply voltage stays between 4.75V and 5.25V for proper functionality.

Selection Notes

Select this component when a precise, user-programmable delay is required with a maximum total delay of approximately 48 nanoseconds. The -15 suffix indicates the fastest step resolution available in the series. Consider the serial interface capability if space-constrained PCB layouts require daisy-chaining multiple units, as the Q output allows cascading for multi-device programming sequences.

Part Context

This part belongs to the DS1020 family of all-silicon programmable delay lines. It serves as a cost-effective alternative to hybrid delay lines, offering 256 equal delay steps controlled by an 8-bit register. The series includes variants with different step sizes ranging from 0.15 ns to 2 ns, allowing designers to choose based on specific timing granularity requirements.

Replacement Considerations

Other models in the DS1020 series such as DS1020S-25, DS1020S-50, DS1020S-100, and DS1020S-200 offer larger step increments and higher maximum delays. These parts share identical pinouts and programming interfaces but differ in timing performance characteristics.