Analog Devices Inc./Maxim Integrated DS1010-50

Overview

DS1010-50 from Dallas Semiconductor is a 10-tap all-silicon delay line with fixed 50 ns total delay (5 ns per tap), TTL/CMOS-compatible input/output, ±5% or ±2 ns delay tolerance, and capable of driving up to 10 LS-TTL loads. It operates at 5 V, supports both leading and trailing edge accuracy, and is used in digital timing alignment, pulse shaping, and clock deskewing applications.

For engineers reviewing the DS1010-50 datasheet, DS1010-50 pinout, DS1010-50 application, or DS1010-50 equivalent, this device serves as a precision, low-power, surface-mount or through-hole compatible silicon alternative to hybrid delay lines-particularly where stable tap-to-tap spacing, edge fidelity, and board-area reduction are critical.

Technical Context

The DS1010-50 implements a monolithic CMOS delay chain with ten equally spaced taps, each delivering deterministic propagation delay relative to the IN signal. Delay accuracy is specified at ±5% or ±2 ns (whichever greater) over 0°C to 70°C, with unidirectional temperature/voltage drift across all taps.

It features dual-edge delay matching (tPLH and tPHL both specified per Table 1), 5 V supply operation, and output drive capability compliant with 74LS logic families. Input pulse width must be ≥40% of TAP10 tPLH (i.e., ≥20 ns for DS1010-50), and rise/fall times ≤3 ns.

Key Specifications

Pinout & Package

DS1010-50 is available in two package options: 14-pin DIP (300-mil) and 16-pin SOIC (300-mil). The DIP version uses pins 1–14; the SOIC version uses pins 1–16, with two additional NC pins. Both packages share identical functional pin mapping for core signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1010-50N and MAX962, the DS1010-50 uniquely delivers ten calibrated delay points in a compact SOIC package while maintaining LS-TTL drive and dual-edge accuracy-making it optimal for applications requiring scalable, board-efficient timing resolution.

Availability

DS1010-50 is available at Aetrix Electronics and suitable for digital test equipment, industrial PLC timing, communications interface sync, and legacy system interfacing requiring stable component supply and guaranteed long-term sourcing.

Supply support for DS1010-50 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, then Analog Devices) specialized in precision timing, memory, and analog interface ICs for industrial and embedded systems.

The DS1010 series was designed specifically to replace aging hybrid delay lines with monolithic silicon solutions offering superior reliability, manufacturability, and temperature-stable delay accuracy in commercial-grade applications.

FAQ

What is the total delay and tap spacing for DS1010-50?

The DS1010-50 provides a total delay of exactly 50 ns from IN to TAP 10, with uniform 5 ns spacing between consecutive taps (TAP 1 = 5 ns, TAP 2 = 10 ns, ..., TAP 10 = 50 ns). This fixed, equally spaced architecture is confirmed in Table 1 of the Dallas Semiconductor datasheet and applies identically across both DIP and SOIC package variants of DS1010-50.

Does DS1010-50 support both rising and falling edge delay accuracy?

Yes, DS1010-50 guarantees matched delay accuracy for both edges: tPLH (rising edge) and tPHL (falling edge) are each specified to ±5% or ±2 ns, whichever is greater. This dual-edge fidelity is explicitly stated in the Features section and AC Electrical Characteristics table, ensuring preserved pulse width and minimal jitter in symmetric waveform applications.

What is the maximum capacitive load DS1010-50 can drive reliably?

The DS1010-50 is rated to drive up to 10 LS-TTL loads per tap, equivalent to ~10 × 20 pF (200 pF total), based on its IOL = 12 mA and IOH = –1 mA specifications under VCC = 4.75 V. Exceeding this load may degrade delay accuracy and edge rate; for heavier loads, external buffering is recommended per the datasheet's drive capability guidance.

Is DS1010-50 compatible with 3.3 V logic systems?

No, DS1010-50 is strictly a 5 V device: its VIH minimum is 2.2 V, but VCC must be 4.75–5.25 V, and it is not characterized for 3.3 V operation. Interfacing with 3.3 V systems requires level translation on both input and output sides, as confirmed by the Absolute Maximum Ratings and DC Electrical Characteristics sections of the official datasheet.

Can DS1010-50 be used in automotive applications?

No, DS1010-50 is rated for 0°C to +70°C operation only and lacks AEC-Q200 qualification or extended temperature grade. Its specification sheet explicitly defines it as a commercial-grade part; automotive use would require validation beyond datasheet limits and is not supported by Dallas Semiconductor's original design intent or characterization data.