Analog Devices Inc./Maxim Integrated DS1007-2

Overview

DS1007-2 from Maxim Integrated (formerly Dallas Semiconductor) is a 7-channel all-silicon fixed delay line IC with TTL/CMOS-compatible inputs and outputs, operating at +5 V, used for precise signal timing alignment in high-speed digital systems. It provides seven independent rising-edge delays of 4 ns, 6 ns, 8 ns, 10 ns, 12 ns, 14 ns, and 16 ns with ±2 ns tolerance at 25°C, housed in a 16-pin PDIP package.

For engineers reviewing the DS1007-2 datasheet, DS1007-2 pinout, DS1007-2 application, or DS1007-2 equivalent, this device supports critical timing functions in logic synchronization, clock skew correction, pulse width adjustment, and test instrumentation where deterministic nanosecond-level delays are required without external components.

Technical Context

The DS1007-2 implements seven independent, factory-trimmed CMOS delay paths-four (Out1–Out4) optimized for 3–10 ns range with leading-edge-only accuracy, and three (Out5–Out7) for 9–40 ns with both leading- and trailing-edge accuracy. All delays are stable across temperature (0°C to +70°C) and supply voltage (4.75 V to 5.25 V).

It features low-power CMOS design with active current ≤70 mA, input leakage ≤±1.0 µA, and output drive capability of –1 mA (high) and +12 mA (low), compatible with standard 74F logic loading. No configuration or control interface is required-operation is purely static and transparent.

Key Specifications

Pinout & Package

DS1007-2 is supplied in a 16-pin plastic dual in-line package (PDIP), 300-mil width, with through-hole mounting. Pin 1 is marked by a notch or dot; pin numbering follows standard DIP convention (counter-clockwise from top-left corner).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1007-1 and DS1007-4, the DS1007-2 offers a uniformly increasing 2 ns step across all seven outputs (4–16 ns), making it ideal for linearly scaled timing sequences such as pipelined logic stages or progressive edge alignment in multi-tap sampling systems.

Availability

DS1007-2 is available at Aetrix Electronics and suitable for digital logic synchronization, test equipment pulse shaping, memory interface timing control, and high-speed bus deskew applications requiring stable component supply and long-term obsolescence management.

Supply support for DS1007-2 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, acquired Dallas Semiconductor in 2001, designs precision analog and mixed-signal ICs for timing, power, sensing, and communication applications.

The DS1007-2 belongs to Maxim's legacy silicon delay line product line, engineered for deterministic nanosecond-scale signal alignment in commercial-grade digital systems where hybrid or discrete delay solutions lack repeatability or cost efficiency.

FAQ

What is the operating voltage range for DS1007-2?

The DS1007-2 operates from 4.75 V to 5.25 V at VCC, with specifications guaranteed across this range at temperatures from 0°C to +70°C. Supply voltage directly affects delay stability: typical variation is <0.1 ns/V, and operation outside this window may cause functional failure or parametric drift. The DS1007-2 must be powered within this range to maintain its ±2 ns delay accuracy.

Does DS1007-2 support both rising- and falling-edge delays?

The DS1007-2 specifies delay only for rising edges (t_PLH) with ±2 ns accuracy. Falling-edge delays (t_PHL) are not characterized in the datasheet and vary with load and transition rate. For applications requiring matched rising/falling delays, external matching or post-processing is necessary. The DS1007-2 is intended for rising-edge–triggered timing alignment, not bidirectional edge control.

Can DS1007-2 be used in place of DS1007-2+ or DS1007S-2?

No-DS1007-2 is a through-hole PDIP part, while DS1007S-2 is the SOIC surface-mount variant, and DS1007-2+ denotes RoHS-compliant packaging. They share identical electrical specs and delay values but differ in package, thermal profile, and assembly method. Substituting DS1007-2 for DS1007S-2 requires PCB redesign. The DS1007-2 itself is not RoHS-compliant per manufacturer documentation.

What is the maximum input frequency supported by DS1007-2?

The DS1007-2 has no defined maximum frequency; its limiting factor is minimum input pulse width (t_WI), specified as ≥100% of the longest delay (i.e., ≥16 ns for DS1007-2). Thus, minimum period is ~32 ns, supporting up to ~31 MHz repetition rates. Higher frequencies risk pulse overlap and undefined output behavior. The DS1007-2 is designed for periodic or single-shot edge-aligned timing, not continuous high-frequency streaming.

Is DS1007-2 pin-compatible with other DS1007 variants like DS1007-3 or DS1007-11?

Yes-all DS1007-x variants (including DS1007-2, DS1007-3, and DS1007-11) share identical 16-pin PDIP pinout, electrical interface, and functional architecture. Only delay values differ per output. This allows direct substitution in existing layouts when timing requirements change, provided thermal and supply conditions remain within 0°C to +70°C and 4.75–5.25 V. The DS1007-2 maintains full mechanical and electrical compatibility with the entire DS1007 family.