Analog Devices Inc./Maxim Integrated DS1135Z-8

Overview

DS1135Z-8 from Maxim Integrated is a high-speed, all-silicon 3-channel digital delay line operating at +5V, delivering precise 8ns propagation delay per output (tPLH/tPHL) with ±1.0ns initial tolerance and ±1.5ns variation over -40°C to +85°C. It features independent buffered outputs capable of driving 10 LS loads, leading/trailing edge symmetry preservation, and SOIC-8 (150-mil) packaging for industrial timing control applications.

For engineers reviewing the DS1135Z-8 datasheet, DS1135Z-8 pinout, DS1135Z-8 application, or DS1135Z-8 equivalent, this device serves as a drop-in replacement for DS1013/DS1035 in clock skew management, pulse width adjustment, and signal alignment circuits where nanosecond-level deterministic delay stability across voltage and temperature is required.

Technical Context

The DS1135Z-8 implements three independent, non-inverting CMOS-buffered delay paths in a single monolithic silicon die, each with matched tPLH and tPHL characteristics. Its architecture ensures input symmetry retention-critical for duty-cycle-sensitive systems-and eliminates the aging, temperature drift, and parasitic sensitivity inherent in RC or analog delay solutions.

Designed for +5V operation (4.75V–5.25V), it achieves 2.0–2.5ns output rise/fall times into 15pF load and maintains stable delay performance without external components. Power-up time is 100ms, and it supports vapor phase, IR, and wave soldering processes.

Key Specifications

Pinout & Package

DS1135Z-8 is housed in an 8-pin SOIC package (150-mil width, outline 21-0041), RoHS-compliant, with gull-wing leads suitable for automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1135Z-6+ and DS1013N+, the DS1135Z-8 delivers optimal balance of precision (±1.5ns over full industrial range), manufacturability (SOIC-8), and functional equivalence - making it the preferred choice for new designs requiring 8ns deterministic delay.

Availability

DS1135Z-8 is available at Aetrix Electronics and suitable for industrial PLC timing modules, telecom line card clock management, digital test equipment pulse shaping, and embedded control systems requiring stable component supply with guaranteed long-term availability.

Supply support for DS1135Z-8 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 U.S.-based semiconductor company specializing in precision analog, mixed-signal, and high-reliability timing solutions for industrial, communications, and computing markets.

The DS1135 series belongs to Maxim's high-speed timing portfolio, designed specifically to replace aging discrete or hybrid delay solutions with monolithic, temperature-stable silicon alternatives for deterministic signal alignment.

FAQ

What is the guaranteed delay accuracy of DS1135Z-8 over its full operating temperature range?

The DS1135Z-8 guarantees ±1.5ns delay variation (tPLH/tPHL) over the industrial temperature range of -40°C to +85°C and supply voltage range of 4.75V to 5.25V. This specification is validated per Maxim's AC Electrical Characteristics table and applies identically to all three outputs. The DS1135Z-8 achieves this stability via all-silicon design, eliminating the thermal drift mechanisms present in RC-based delay elements.

Is DS1135Z-8 pin-compatible with DS1013 or DS1035?

Yes - DS1135Z-8 uses the same 8-pin SOIC footprint and identical pin assignment (IN1–IN3, OUT1–OUT3, VCC, GND) as DS1013 and DS1035. Maxim explicitly recommends DS1135Z-8 as a direct replacement, offering improved delay stability (±1.5ns vs. ±3ns), faster rise/fall times, and enhanced solder process compatibility. No PCB layout changes are required when upgrading from DS1013N+ or DS1035N+ to DS1135Z-8.

Can DS1135Z-8 operate with input signals below 5V logic levels?

Yes - DS1135Z-8 accepts TTL- and CMOS-compatible inputs: VIH ≥ 2.2V and VIL ≤ 0.8V under normal operation. It functions correctly with 3.3V logic inputs (e.g., from microcontrollers or FPGAs), though the output swing remains rail-to-rail relative to its +5V VCC supply. For true 3V operation, Maxim specifies the DS1135L family - DS1135Z-8 is strictly a +5V device.

Does DS1135Z-8 require external passive components for basic delay operation?

No - DS1135Z-8 is a fully self-contained delay line requiring only +5V supply, ground, and input signals. No external resistors, capacitors, or trimmers are needed to achieve its specified 8ns delay. A 0.1µF ceramic decoupling capacitor on VCC is recommended per standard high-speed logic practice, but it does not affect delay value or accuracy.

What is the maximum capacitive load DS1135Z-8 can drive while maintaining specified timing performance?

DS1135Z-8 is characterized and guaranteed to drive up to 15pF load capacitance while meeting all AC specifications including 2.0–2.5ns rise/fall times and 8ns ±1.5ns delay accuracy. Driving loads >15pF may increase propagation delay and degrade edge fidelity; for heavier loads, buffer stages or lower-capacitance routing should be used. Each output is rated for ≥10 LS-TTL loads, equivalent to ~15pF typical.