DS1135LU-15

Overview

The DS1135LU-15 is a low-power, 3V high-speed silicon delay line featuring three independent buffered delays within an 8-pin uSOP package. It operates on a supply voltage ranging from 2.7V to 3.6V with an active current of 10mA at maximum voltage. The device provides a nominal delay of 15ns per output, with an initial tolerance of ±1.0ns at +25°C and VCC = 3.3V. Over the industrial temperature range of -40°C to +85°C, the tolerance extends to ±4.0ns. Output rise and fall times are typically 2.5ns, and the power-up time is 1ms.

Feature Summary

• All-silicon timing circuit providing inherent reliability
• Three independent logic buffered delays in a single package
• Stable and precise performance over temperature and voltage variations
• Leading and trailing edge precision preserves input symmetry

Applications

• Precision timing applications requiring multiple synchronized delays
• Replacement for legacy DS1033 devices
• Systems utilizing 3V operation logic families

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance markings as indicated by the suffix. Check for lead-free packaging specifications if required by assembly standards. Ensure compatibility with existing PCB footprints for the 8-pin uSOP format before procurement.

Selection Notes

Select this model when three identical delay paths are required at 15ns intervals. Verify that the 3V operating voltage aligns with system power rails. Consider the ±4.0ns tolerance over the full industrial temperature range for timing budget calculations. Ensure the uSOP package fits the available board space constraints.

Part Context

Part of the DS1135L series designed as a 3V version of the popular DS1013 and DS1035 lines. Manufactured by Analog Devices / Maxim Integrated, it serves as a direct replacement for older Dallas Semiconductor delay lines. The series offers high-speed performance in a compact surface-mount footprint.

Replacement Considerations

• DS1033
• DS1013