DS1135LZ-20+

Overview

The DS1135LZ-20+ is a high-speed, all-silicon delay line from the DS1135L series, designed for 3V operation. It integrates three independent buffered delays within an 8-pin SOIC package. The device provides a nominal propagation delay of 20 ns per output tap, with initial tolerance specified at ±1.0 ns under nominal conditions (+25°C, VCC = +3.3V). Operating voltage ranges from 2.7V to 3.6V, and it functions reliably across temperatures from -40°C to +85°C. Key electrical characteristics include a typical active current of 10 mA at 3.6V, low-level output current of 8 mA, and high-level output current of -1 mA.

Feature Summary

• Three independent logic buffered delays integrated into a single package
• Precise leading and trailing edge accuracy preserves input symmetry
• Stable and precise timing performance over temperature and voltage variations
• Compatible with vapor phase, IR reflow, and wave soldering processes

Applications

• Replacement for legacy DS1033 delay lines
• Precision timing circuits requiring stable silicon-based delays
• High-speed signal processing applications needing multiple synchronized taps

Procurement Notes

Verify RoHS compliance status by checking the specific ordering suffix against manufacturer documentation. Confirm that the package type matches the required footprint, as the datasheet indicates revisions regarding package availability. Ensure supply chain sources provide valid traceability for lead-free components.

Selection Notes

Select this component when a 20 ns fixed delay is required for three independent channels. Compare against other DS1135L variants (e.g., -10+, -15+) if different delay values are needed. Verify that the 3V operating range aligns with the system power supply constraints and that the SOIC-8 package fits the PCB layout.

Part Context

The DS1135LZ-20+ belongs to the DS1135L family, which represents the low-voltage, high-speed evolution of earlier Maxim Integrated delay lines like the DS1013 and DS1033. This series focuses on reducing power consumption while maintaining high-speed performance in a compact surface-mount package suitable for modern electronics.

Replacement Considerations

The datasheet explicitly recommends the DS1135L series as a replacement for the DS1033. Engineers should verify pin compatibility and delay specifications when transitioning from older discrete or TTL-based delay solutions.