DS1020S-200

Overview

The DS1020S-200 is a programmable 8-bit silicon delay line manufactured by Analog Devices Inc./Maxim Integrated. It provides 256 equal delay steps with an incremental delay of 2 ns and a step-zero delay of 10 ns, resulting in a maximum nominal delay of 520 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 and is housed in a 16-pin SOIC package.

Feature Summary

• Programmable delay generation using either a 3-wire serial port or an 8-bit parallel port interface
• Accurate reproduction of input logic states at the output without inversion for both rising and falling edges
• Supports daisy-chaining multiple units via serial data output and input pins for cascaded programming

Applications

• Precision timing control in digital signal processing systems
• Programmable delay lines for test and measurement equipment
• Timing adjustment in communication circuits requiring TTL/CMOS compatibility

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status as datasheets may indicate non-compliance for older revisions. Check for obsolescence notices from Analog Devices, as this part number may be discontinued. Ensure the specific suffix matches the required packaging format before ordering.

Selection Notes

Select the DS1020S-200 when a maximum delay of 520 ns with 2 ns resolution is required. Compare against other DS1020 variants if finer resolution like 0.15 ns or 0.25 ns steps is needed. Ensure the application fits the 0°C to 70°C operating temperature range. Verify that the 16-pin SOIC package aligns with the PCB layout constraints.

Part Context

The DS1020 series serves as an all-silicon alternative to hybrid programmable delay lines. The DS1020S-200 specifically denotes the surface-mount SOIC variant with the slowest delay step rate in the family. It belongs to the broader DS1020 product line designed for economical and reliable timing applications.

Replacement Considerations

Direct replacements include other models within the DS1020 family such as DS1020S-15, DS1020S-25, DS1020S-50, and DS1020S-100, which offer different delay resolutions. Cross-reference with DS1023 series devices if higher speed or different interface requirements are necessary.