Analog Devices Inc./Maxim Integrated DS1010S-50/T&R

Overview

DS1010S-50/T&R from Dallas Semiconductor (now Maxim Integrated) is a 10-tap all-silicon delay line with fixed 50 ns total delay (5 ns per tap), TTL/CMOS-compatible input/output, 5 V supply, and 16-pin SOIC package. It delivers precise leading and trailing edge delays with ±5% or ±2 ns tolerance, and drives up to 10 LS-TTL loads per tap - used in digital timing alignment, clock skew correction, and pulse width adjustment circuits.

For engineers reviewing the DS1010S-50/T&R datasheet, DS1010S-50/T&R pinout, DS1010S-50/T&R application, or DS1010S-50/T&R equivalent, key selection criteria include tap accuracy over temperature (±3% shift for ≥100 ns parts; ±9% for <100 ns), SOIC footprint compatibility, 5 V DC electrical compliance, and edge-matched delay performance across all 10 outputs.

Technical Context

The DS1010S-50/T&R implements a monolithic CMOS tapped delay chain with fixed 5 ns inter-tap spacing and identical propagation characteristics for rising (tPLH) and falling (tPHL) edges. All 10 taps reproduce the input logic state with deterministic, monotonic delay progression - no tap can be faster than its predecessor under voltage or temperature variation.

It operates strictly at VCC = 5.0 V ±5% within 0°C to 70°C, draws 40–150 mA active current, and maintains input-to-tap delay stability per Note 5/6 of the datasheet: for the -50 variant (TAP10 = 50 ns), delay shift due to temperature is ±1 ns or ±9%, whichever is greater, across the full operating range.

Key Specifications

Pinout & Package

DS1010S-50/T&R uses a 16-pin SOIC (300-mil) package with gull-wing leads, optimized for surface-mount assembly and reduced board area versus DIP variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1010-50 and MAX5517EPA+, the DS1010S-50/T&R uniquely combines 10 precisely spaced taps, 50 ns total delay, SOIC packaging, and edge-matched rise/fall delay - making it optimal for space-constrained, high-reliability timing alignment where tap granularity and package form factor are decisive.

Availability

DS1010S-50/T&R is available at Aetrix Electronics and suitable for digital test equipment, high-speed data acquisition systems, and industrial control logic requiring stable component supply, consistent delay performance, and RoHS-compliant SMT packaging.

Supply support for DS1010S-50/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

Dallas Semiconductor, now part of Maxim Integrated (a subsidiary of Analog Devices), designs precision timing, memory, and security ICs for industrial, communications, and embedded applications.

The DS1010 series was developed specifically as an all-silicon replacement for hybrid delay lines - targeting cost-sensitive, high-volume digital systems needing reliable, solderable, and repeatable fixed-time delays.

FAQ

What is the exact total delay and tap spacing for DS1010S-50/T&R?

The DS1010S-50/T&R provides a nominal total delay of 50 ns at TAP 10, with fixed 5 ns spacing between consecutive taps (TAP 1 = 5 ns, TAP 2 = 10 ns, ..., TAP 10 = 50 ns). This is defined by the "-50" suffix and confirmed in Table 1 of the datasheet. Delay tolerance is ±5% or ±2 ns, whichever is greater, measured at 25°C with VCC = 5.0 V.

Is DS1010S-50/T&R pin-compatible with the 14-pin DIP version DS1010-50?

No, DS1010S-50/T&R is not pin-compatible with DS1010-50. The DS1010S-50/T&R uses a 16-pin SOIC layout with IN on Pin 1, GND on Pin 8, VCC on Pin 14, and TAPs distributed across Pins 4–13. The DS1010-50 DIP places TAPs differently (e.g., TAP 1 on Pin 7, TAP 10 on Pin 12) and has only 14 pins. PCB redesign is required for substitution.

What is the maximum output load drive capability of each tap on DS1010S-50/T&R?

Each tap on DS1010S-50/T&R can drive up to 10 LS-TTL loads, corresponding to –1 mA high-level output current (IOH) and 12 mA low-level output current (IOL) under VCC = 4.75 V minimum. This is specified in the DC Electrical Characteristics table and validated with 74FO4-equivalent loading in the test conditions.

Does DS1010S-50/T&R support both rising and falling edge delay accuracy?

Yes, DS1010S-50/T&R guarantees equal precision for both edges: tPLH (rising edge delay) and tPHL (falling edge delay) match within the same ±5% or ±2 ns tolerance. This is explicitly stated in the Features section and Notes 3–7, enabling accurate pulse width preservation and symmetric timing in bidirectional logic paths.

What temperature-related delay shift should be expected for DS1010S-50/T&R in industrial environments?

For DS1010S-50/T&R (TAP 10 = 50 ns < 100 ns), the datasheet specifies a temperature-induced delay shift of ±1 ns or ±9%, whichever is greater, across 0°C to 70°C. This means worst-case deviation is ±4.5 ns at TAP 10 - a critical factor when designing for setup/hold margins in ambient-temperature-varying systems.