Analog Devices Inc./Maxim Integrated DS1110S-400

Overview

DS1110S-400 from Maxim Integrated (formerly Dallas Semiconductor) is a 10-tap all-silicon delay line IC providing fixed 400ns total delay with 40ns per tap, ±5% or ±2ns accuracy at 5V/+25°C, TTL/CMOS-compatible input/output, and operation across -40°C to +85°C. It reproduces logic states at Tap 10 after precise leading- and trailing-edge delays for timing alignment in high-speed digital systems.

For engineers reviewing the DS1110S-400 datasheet, DS1110S-400 pinout, DS1110S-400 application, or DS1110S-400 equivalent, key selection criteria include tap spacing consistency, edge-matched delay tolerance, drive capability (10 × 74LS loads), SO-16 package compatibility, and industrial temperature range support.

Technical Context

The DS1110S-400 implements a monolithic CMOS delay chain with ten equally spaced taps derived from a single propagation path, ensuring unidirectional delay variation across temperature and supply voltage. Each tap delivers identical rise/fall delay characteristics with no internal buffering-delay values scale linearly from Tap 1 (40ns) to Tap 10 (400ns).

It operates at 5.0V ±5%, supports pulse widths ≥10ns, and maintains specified accuracy over full industrial temperature range (-40°C to +85°C). Input-to-tap delay tolerances are defined per tap group: ≤40ns delays have ±4ns max deviation; >40ns delays have ±13% max deviation under full-range conditions.

Key Specifications

Pinout & Package

DS1110S-400 is housed in a 16-pin SOIC (300-mil width) package with exposed pad not present; pin 1 is VCC, pin 2 is IN, pins 3–12 are TAP1–TAP10 (in order), pins 13–15 are N.C., and pin 16 is GND. All N.C. pins must remain unconnected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1110S-400, DS1110E-400 provides identical timing performance in a smaller footprint but demands PCB redesign, while MAX9600EVKIT enables programmable delays at the cost of added complexity and non-drop-in integration.

Availability

DS1110S-400 is available at Aetrix Electronics and suitable for digital test equipment, medical imaging subsystems, industrial bus interfaces, and high-reliability embedded timing applications requiring stable component supply across extended product lifecycles.

Supply support for DS1110S-400 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, medical, communications, and computing markets.

The DS1110S-400 belongs to Maxim's legacy silicon delay line family, engineered specifically for deterministic, low-jitter signal propagation in high-speed digital timing and test applications.

FAQ

What is the exact delay value at Tap 5 for DS1110S-400?

The DS1110S-400 provides 40ns per tap, so Tap 5 delivers a fixed 200ns delay from the IN signal. This value is factory-trimmed and guaranteed within ±5% or ±2ns (whichever greater) at 5V and +25°C. Delay remains linear across all taps, with unidirectional drift under temperature or voltage variation - meaning if Tap 5 slows, all other taps slow proportionally.

Does DS1110S-400 support 3.3V operation?

No, DS1110S-400 is specified exclusively for 5.0V ±5% operation (4.75V–5.25V). Its input thresholds (VIH = 2.4V min, VIL = 0.8V max) and output drive characteristics are optimized for 5V TTL/CMOS logic families. Operating below 4.75V may cause timing violations or failure to meet output drive specifications.

Can DS1110S-400 drive modern CMOS loads like 74LVC series?

Yes - DS1110S-400 can drive up to ten 74LS loads, which corresponds to ~16mA per output. Since 74LVC inputs draw <1µA, the DS1110S-400 output stage easily meets fanout requirements for LVC-series devices, though voltage-level compatibility (5V outputs into 3.3V inputs) requires external clamping or level-shifting if interfacing with 3.3V systems.

Is the DS1110S-400 pin-compatible with the original DS1010?

Yes - DS1110S-400 is explicitly designed as an improved drop-in replacement for DS1010 in SO-16 packaging. Pin functions, numbering, and electrical behavior match exactly, enabling direct substitution on existing DS1010-based PCBs without layout changes or firmware updates.

What is the maximum input frequency supported by DS1110S-400?

DS1110S-400 has no specified maximum operating frequency, but its minimum input pulse width is 10ns (per datasheet Table 1), implying a theoretical upper limit of ~100MHz for repetitive square waves. Real-world use is constrained by signal integrity - for reliable operation, input period should exceed twice the pulse width (i.e., ≥20ns), and layout must minimize reflections and crosstalk.