Analog Devices Inc./Maxim Integrated DS1004Z-4

Overview

DS1004Z-4 from Dallas Semiconductor is a 5-tap all-silicon delay line with nominal input-to-tap1 delay of 5 ns, tap-to-tap delays of 4 ns, ±1.0 ns nominal tap-to-tap tolerance, ±1.75 ns over temperature/voltage, and CMOS/TTL-compatible outputs driving up to 10 LS loads. It enables precise clock skew management in high-speed digital test equipment and logic timing alignment circuits.

For engineers reviewing the DS1004Z-4 datasheet, DS1004Z-4 pinout, DS1004Z-4 application, or DS1004Z-4 equivalent, key selection criteria include tap delay accuracy across temperature, edge symmetry preservation, output drive strength, and SOIC-8 packaging compatibility with automated assembly processes.

Technical Context

The DS1004Z-4 implements a monolithic silicon delay architecture delivering five precisely spaced output taps from a single CMOS/TTL-compatible input. Its delay chain is calibrated for leading and trailing edge symmetry, ensuring <±1.75 ns total input-to-tap variation across 0°C–70°C and VCC = 5.0V ±5%.

All five outputs (TAP1–TAP5) are buffered, each capable of sourcing/sinking ≥12 mA low-level current and ≤1 mA high-level current under specified load conditions, supporting direct interfacing with 74F-series logic without external buffering.

Key Specifications

Pinout & Package

DS1004Z-4 is housed in a 150-mil 8-pin SOIC package (JEDEC MS-012), surface-mount compatible with vapor phase, IR, and wave soldering per J-STD-020A.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1004M-4 and MAX9992ESE+, the DS1004Z-4 delivers identical timing performance in a compact SOIC-8 package optimized for automated SMT production, while avoiding the cost and firmware overhead of programmable alternatives.

Availability

DS1004Z-4 is available at Aetrix Electronics and suitable for digital test equipment, logic timing alignment, and high-speed data acquisition requiring stable component supply and long-term obsolescence mitigation.

Supply support for DS1004Z-4 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 interface ICs for industrial and test applications.

The DS1004 product line was designed to replace quartz-based and RC delay lines with monolithic silicon solutions offering superior stability, repeatability, and edge fidelity in high-speed digital systems.

FAQ

What is the nominal input-to-TAP1 delay for DS1004Z-4?

The DS1004Z-4 has a nominal input-to-TAP1 delay of 5 ns, verified under standard conditions (25°C, VCC = 5.0 V). This value is fixed and consistent across all units, forming the baseline for its 4 ns tap-to-tap spacing (TAP1–TAP5 at 5/9/13/17/21 ns). The device guarantees ±3.0 ns total variation over temperature (0°C to +70°C) and supply voltage (±5%).

Does DS1004Z-4 support both rising and falling edge delay accuracy?

Yes, DS1004Z-4 maintains precise delay accuracy on both rising and falling edges, with symmetrical tPLH and tPHL characteristics. The datasheet specifies that delay tolerances apply equally to leading and trailing edges, and measurements are taken at the 1.5 V threshold level. This ensures minimal duty cycle distortion across all five outputs.

Can DS1004Z-4 drive standard TTL logic directly?

Yes, DS1004Z-4 can directly drive up to 10 LS-TTL loads per output. Its IOL = 12 mA (min) at VOL = 0.5 V and IOH = –1 mA (min) at VOH = 4 V meet LS-TTL interface requirements. No external buffers are needed when interfacing with 74LS or 74F series devices under standard operating conditions.

What is the maximum operating temperature range for DS1004Z-4?

The DS1004Z-4 is rated for operation from 0°C to +70°C, as confirmed in the Absolute Maximum Ratings and AC Electrical Characteristics tables. This commercial-grade temperature range is validated for use in industrial control panels, automated test equipment, and embedded instrumentation where ambient temperatures remain within this envelope.

Is DS1004Z-4 pin-compatible with other DS1004 variants?

Yes, DS1004Z-4 shares identical pinout and electrical behavior with all DS1004Z-x variants (Z-2, Z-3, Z-5) and DS1004M-x DIP versions. All use the same 8-pin SOIC or DIP layout with IN, TAP1–TAP5, VCC, and GND assigned identically. Only the nominal delay values differ - not pin function or assignment.