Analog Devices Inc./Maxim Integrated DS1135LZ-20/T&R

Overview

DS1135LZ-20/T&R from Maxim Integrated is a 3V, 8-pin SO all-silicon delay line delivering three independent buffered delays of precisely 20 ns each (tPLH/tPHL), with ±1.0 ns initial tolerance and ±4.0 ns total variation over -40°C to +85°C. It preserves input signal symmetry via leading/trailing edge precision and supports vapor-phase and IR reflow soldering in industrial timing applications.

For engineers reviewing the DS1135LZ-20/T&R datasheet, DS1135LZ-20/T&R pinout, DS1135LZ-20/T&R application, or DS1135LZ-20/T&R equivalent, this device serves as a high-speed, low-power replacement for DS1033 in clock skew management, pulse width adjustment, and digital signal alignment where sub-nanosecond edge fidelity and 3V operation are critical.

Technical Context

The DS1135LZ-20/T&R implements three identical, fully buffered delay paths with matched tPLH and tPHL (20 ns each), ensuring symmetrical propagation for both rising and falling edges. Its all-silicon architecture eliminates quartz aging and temperature hysteresis, while operating across 2.7V–3.6V supply range.

Designed for deterministic timing control, it features 2.5 ns max output rise/fall time (20%–80%), 1 ms power-up stabilization, and 10 pF input capacitance - enabling clean interfacing with 74F04-equivalent logic loads without external termination.

Key Specifications

Pinout & Package

DS1135LZ-20/T&R is housed in an 8-pin SOIC package (150-mil width, outline 21-0041), RoHS-compliant (Z suffix), tape-and-reel packaged (T&R).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1033Z-20+ and MAX9600EUA+, the DS1135LZ-20/T&R delivers superior delay accuracy and lower power in a compact 8-pin SO package - making it optimal for cost-sensitive, high-volume 3V timing correction where fixed 20 ns delay suffices.

Availability

DS1135LZ-20/T&R is available at Aetrix Electronics and suitable for high-speed clock skew correction, pulse width adjustment, digital signal alignment, and logic glitch suppression requiring stable component supply across industrial temperature ranges.

Supply support for DS1135LZ-20/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) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications.

The DS1135L series was developed as a low-power, 3V-compatible successor to the DS1033 family - targeting high-speed digital timing correction in space-constrained, thermally demanding systems.

FAQ

What is the guaranteed delay accuracy of DS1135LZ-20/T&R over its full operating temperature range?

The DS1135LZ-20/T&R guarantees ±4.0 ns delay variation (tPLH/tPHL) over -40°C to +85°C and 2.7V–3.6V supply, with ±1.0 ns initial tolerance at +25°C. This includes both leading and trailing edge matching, verified per Table 1 in the official Maxim datasheet Rev 8/12.

Is DS1135LZ-20/T&R pin-compatible with DS1033Z-20+?

Yes, DS1135LZ-20/T&R shares the same 8-pin SOIC (150-mil) footprint and pinout as DS1033Z-20+, including identical IN1–IN3, OUT1–OUT3, VCC, and GND assignments - enabling drop-in replacement in existing layouts with only supply voltage verification.

Does DS1135LZ-20/T&R require external termination resistors on its inputs or outputs?

No, DS1135LZ-20/T&R does not require external termination. Its 10 pF input capacitance and 74F04-equivalent output drive are designed for direct connection to standard logic families. Termination is only needed if driving long traces (>10 cm) or mismatched impedances.

Can DS1135LZ-20/T&R operate reliably at 2.7V supply?

Yes, DS1135LZ-20/T&R is fully specified from 2.7V to 3.6V. At 2.7V, it maintains 20 ns nominal delay with ±4.0 ns total tolerance, 2.5 ns max output rise/fall time, and 10 mA active current - meeting all AC/DC specs across the entire voltage range.

What is the maximum input pulse frequency supported by DS1135LZ-20/T&R?

DS1135LZ-20/T&R supports input periods down to 2×delay (40 ns minimum), corresponding to 25 MHz maximum fundamental frequency. With 100% pulse width relative to delay (i.e., 20 ns wide), it handles repetitive pulses up to 25 MHz while maintaining edge fidelity and delay accuracy.