Analog Devices Inc./Maxim Integrated DS1100LU-100+T&R

Overview

DS1100LU-100+T&R from Maxim Integrated is a 3.3V, 5-tap silicon delay line in an 8-pin µMAX package, delivering nominal delays of 20ns, 40ns, 60ns, 80ns, and 100ns across taps 1–5. It operates from −40°C to +85°C, drives up to 10 LS-TTL loads per tap, and reproduces both leading and trailing edges with equal precision for timing-critical digital synchronization.

For engineers reviewing the DS1100LU-100+T&R datasheet, DS1100LU-100+T&R pinout, DS1100LU-100+T&R application, or DS1100LU-100+T&R equivalent, key selection considerations include tap delay accuracy (±4ns over full temperature range for ≤40ns delays), 3.3V CMOS/TTL compatibility, low-power operation (10mA typical ICC), and µMAX footprint constraints for high-density PCB layouts.

Technical Context

The DS1100LU-100+T&R implements a monolithic all-silicon delay architecture-no hybrid or RC-based elements-with fixed, factory-trimmed propagation paths. Each of its five taps provides deterministic, temperature- and voltage-stable delay values derived from physical silicon path lengths, not programmable logic or PLLs.

Delay tolerance is specified as ±4ns (for TAP1–TAP3 at ≤40ns) and ±13% (for TAP4–TAP5 >40ns) over −40°C to +85°C and 3.0V–3.6V supply, with unidirectional drift: all taps slow or speed together under environmental change, preserving inter-tap spacing integrity.

Key Specifications

Pinout & Package

DS1100LU-100+T&R is housed in an 8-pin µMAX package (outline U8+1, 3mm × 3mm, 0.65mm pitch), optimized for space-constrained applications requiring surface-mount timing elements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar delay line applications.

Compared with DS1100LZ-100+T&R, the DS1100LU-100+T&R saves 60% board area and improves thermal response; versus MC100EP195DG, it delivers tighter delay tolerance (±4ns vs ±15%), single-ended simplicity, and guaranteed edge-matched performance-making it optimal for cost-sensitive, space-constrained digital timing.

Availability

DS1100LU-100+T&R is available at Aetrix Electronics and suitable for high-speed data capture, logic skew compensation, and PWM dead-time shaping requiring stable component supply, RoHS-compliant packaging, and tape-and-reel delivery for automated SMT assembly.

Supply support for DS1100LU-100+T&R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in analog, mixed-signal, and high-reliability timing solutions for industrial, communications, and computing markets.

The DS1100L series was designed as an economy-grade, silicon-based replacement for hybrid delay lines-targeting cost-sensitive, high-volume applications needing predictable, maintenance-free timing without programmability overhead.

FAQ

What is the operating temperature range for DS1100LU-100+T&R?

The DS1100LU-100+T&R is fully specified and tested over −40°C to +85°C. All delay tolerances, drive capabilities, and DC parameters-including ±4ns tap delay accuracy for TAP1–TAP3-are guaranteed across this industrial temperature range, making DS1100LU-100+T&R suitable for harsh-environment deployments without derating.

Does DS1100LU-100+T&R require external components for basic operation?

No, DS1100LU-100+T&R operates stand-alone with only a 0.1µF ceramic decoupling capacitor on the VCC pin. No pull-ups, termination resistors, or bias networks are needed-its TTL/CMOS-compatible inputs and outputs interface directly with standard logic families, simplifying integration and reducing BOM count for DS1100LU-100+T&R implementations.

How does DS1100LU-100+T&R ensure matching between rising and falling edge delays?

DS1100LU-100+T&R uses matched transistor paths and symmetric layout within its monolithic silicon delay structure to guarantee equal tPLH and tPHL values across all taps. This leading- and trailing-edge accuracy is characterized and guaranteed per datasheet Table 1, ensuring pulse-width integrity-critical for DS1100LU-100+T&R use in data strobing and PWM generation.

Can DS1100LU-100+T&R drive multiple 74LS loads simultaneously on one tap?

Yes, each tap of DS1100LU-100+T&R is rated to drive up to 10 LS-TTL loads (IOL = 8mA, IOH = −1mA). This is verified under worst-case conditions (VCC = 3.0V, TA = +85°C), confirming robust fanout capability without signal degradation-enabling direct connection to multiple downstream gates in DS1100LU-100+T&R-based timing trees.

Is the µMAX package of DS1100LU-100+T&R compatible with standard reflow soldering processes?

Yes, DS1100LU-100+T&R's µMAX package is qualified for both lead-free (260°C peak) and SnPb (240°C peak) reflow profiles, and is vapor-phase and IR solderable per JEDEC standards. Its 3mm × 3mm footprint and 0.65mm pitch are supported by mainstream SMT equipment, ensuring reliable assembly for DS1100LU-100+T&R in high-volume manufacturing.