Analog Devices Inc./Maxim Integrated DS1135Z-6+T&R

Overview

DS1135Z-6+T&R from Maxim Integrated is a 3-channel, +5V silicon delay line IC delivering precise 6 ns propagation delay per output (tPLH/tPHL) with ±1.0 ns initial tolerance and ±1.5 ns variation over -40°C to +85°C. It buffers three independent logic inputs (IN1–IN3), drives up to 10 LS loads per output (OUT1–OUT3), and preserves input signal symmetry via leading/trailing edge accuracy-used in high-speed digital timing alignment for test equipment and FPGA interface synchronization.

For engineers reviewing the DS1135Z-6+T&R datasheet, DS1135Z-6+T&R pinout, DS1135Z-6+T&R application, or DS1135Z-6+T&R equivalent, key selection factors include guaranteed 6 ns matched delay across all three channels, SOIC-8 (150-mil) package compatibility, 5V-only operation, industrial temperature support, and direct replacement qualification for DS1013/DS1035 legacy designs.

Technical Context

The DS1135Z-6+T&R implements an all-silicon, non-programmable analog delay architecture with three independent buffered paths. Each channel provides identical 6 ns nominal delay (tPLH = tPHL = 6 ns), with edge-aligned precision preserving input duty cycle integrity under varying load and supply conditions.

It operates strictly at VCC = 4.75 V to 5.25 V, draws ≤35 mA active current, and features TTL-compatible input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and CMOS-level outputs capable of sourcing –1.0 mA and sinking 12 mA at specified voltage levels.

Key Specifications

Pinout & Package

DS1135Z-6+T&R is housed in an 8-pin SOIC (150-mil) package, RoHS-compliant (indicated by "+" suffix), with standard 1.27 mm pitch and 5.3 mm body width.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-channel fixed-delay line applications.

Compared with DS1135Z-8+T&R and DS1013M, DS1135Z-6+T&R delivers the shortest and most tightly controlled delay (6 ns ±1.5 ns) across industrial temperatures, making it optimal for high-precision, high-reliability timing alignment where minimal skew and thermal drift are critical.

Availability

DS1135Z-6+T&R is available at Aetrix Electronics and suitable for high-speed logic timing alignment, FPGA I/O interface synchronization, and digital test equipment signal conditioning requiring stable component supply and long-term industrial-grade availability.

Supply support for DS1135Z-6+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, mixed-signal, and timing ICs for industrial, communications, and computing applications.

The DS1135 series belongs to Maxim's high-speed silicon delay line product line, engineered to replace aging bipolar delay devices with stable, low-power, temperature-insensitive alternatives for digital timing-critical systems.

FAQ

What is the exact delay value and tolerance specification for DS1135Z-6+T&R?

The DS1135Z-6+T&R provides a nominal 6 ns propagation delay (tPLH and tPHL) on each of its three outputs. Initial tolerance is ±1.0 ns at +25°C and VCC = 5.0 V. Over the full industrial temperature range (–40°C to +85°C) and supply voltage range (4.75 V–5.25 V), delay variation is guaranteed within ±1.5 ns - confirmed in Table 1 of the official DS1135 datasheet.

Is DS1135Z-6+T&R compatible with 3 V logic systems?

No, DS1135Z-6+T&R operates exclusively at +5 V (4.75 V–5.25 V). It is not rated for 3 V operation. For 3 V systems, Maxim specifies the DS1135L family - a pin-compatible variant with identical delay values and package but designed for 2.7 V–3.6 V supply. Using DS1135Z-6+T&R with 3 V violates absolute maximum ratings and will result in undefined behavior.

Does DS1135Z-6+T&R support differential or LVDS inputs/outputs?

No, DS1135Z-6+T&R accepts single-ended TTL/CMOS-compatible inputs (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and delivers single-ended CMOS-level outputs. It does not support differential signaling standards such as LVDS, PECL, or LVPECL. Its input and output stages are optimized for 5 V logic families and lack termination or biasing for differential protocols.

Can DS1135Z-6+T&R be used as a programmable delay device?

No, DS1135Z-6+T&R is a fixed-delay device with hardwired 6 ns per channel. It contains no registers, control pins, or configuration interfaces. Delay value is set at fabrication and cannot be adjusted in-circuit. For programmable delay functionality, consider Maxim's DS1023 or DS1086 series, which offer digitally adjustable delays via serial interface.

What is the recommended PCB layout practice for DS1135Z-6+T&R to maintain timing accuracy?

To preserve DS1135Z-6+T&R's ±1.5 ns delay stability, place 0.1 µF ceramic decoupling capacitors within 5 mm of VCC and GND pins, use solid ground planes, minimize trace lengths to inputs/outputs, and avoid routing sensitive traces near noise sources. Load capacitance should remain ≤15 pF per output - exceeding this degrades rise/fall times and increases delay uncertainty beyond datasheet limits.