Analog Devices Inc./Maxim Integrated DS1004Z-4+T

Overview

DS1004Z-4+T from Analog Devices (acquired Dallas Semiconductor) is a 5-tap all-silicon delay line with precise tap-to-tap delays of 4 ns, input-to-tap1 delay of 5 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 serves as a high-speed timing alignment device in digital test instrumentation and clock skew compensation circuits.

For engineers reviewing the DS1004Z-4+T datasheet, DS1004Z-4+T pinout, DS1004Z-4+T application, or DS1004Z-4+T equivalent, key selection criteria include guaranteed 4 ns tap spacing, leading/trailing edge symmetry preservation, 5 ns minimum input-to-tap1 delay, 8-pin SOIC (150-mil) package compatibility, and operation across 0°C to +70°C with VCC = 5.0 V ±5%.

Technical Context

The DS1004Z-4+T implements a monolithic silicon delay chain architecture delivering five precisely spaced output phases from a single CMOS/TTL-compatible input. Each tap provides deterministic propagation delay relative to the previous stage, with identical rise/fall edge fidelity maintained across all outputs.

It operates exclusively at +5 V supply (4.75–5.25 V), requires no external components, and achieves sub-nanosecond delay matching between rising and falling edges-critical for maintaining signal duty cycle integrity in high-speed digital systems.

Key Specifications

Pinout & Package

DS1004Z-4+T is housed in an 8-pin SOIC package with 150-mil body width and standard gull-wing lead form. The package is RoHS-compliant, vapor-phase/wave/IR solderable, and available in tape-and-reel format.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 5-tap silicon delay line applications.

Compared with DS1004M-4+ and MAX9995ETE+, the DS1004Z-4+T offers optimal balance of fixed-precision delay, SOIC manufacturability, and cost efficiency for volume production of timing-critical digital systems requiring stable 4 ns tap spacing.

Availability

DS1004Z-4+T is available at Aetrix Electronics and suitable for digital test instrumentation, high-speed clock skew compensation, and logic glitch suppression requiring stable component supply, consistent parametric performance, and long-term sourcing continuity.

Supply support for DS1004Z-4+T 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

Analog Devices acquired Dallas Semiconductor in 2001 and maintains its precision timing product portfolio, including silicon delay lines, real-time clocks, and temperature-compensated oscillators.

The DS1004Z-4+T belongs to the DS1004 family of high-speed all-silicon delay lines engineered for deterministic, low-jitter timing alignment in digital test, measurement, and synchronization applications.

FAQ

What is the exact input-to-TAP1 delay specification for DS1004Z-4+T?

The DS1004Z-4+T guarantees a minimum input-to-TAP1 delay of 5 ns under all operating conditions (0°C to +70°C, VCC = 5.0 V ±5%). This value is fixed and not adjustable. The actual measured delay falls within 5 ns to 6.5 ns due to the ±1.5 ns input-to-tap tolerance specified in Table 1. DS1004Z-4+T does not offer trimming or calibration-its delay accuracy is factory-trimmed and process-controlled.

Does DS1004Z-4+T support both rising and falling edge delay matching?

Yes, DS1004Z-4+T maintains identical delay characteristics for both rising and falling edges, with leading and trailing edge precision explicitly preserved per datasheet Section "Features". Delay tolerances (±1.0 ns nominal, ±1.75 ns over temp/voltage) apply equally to tPLH and tPHL, ensuring minimal duty cycle distortion across all five taps-critical for clock distribution and symmetric waveform generation.

Can DS1004Z-4+T drive standard TTL loads directly?

Yes, DS1004Z-4+T is rated to drive up to 10 LS-TTL loads per output tap without external buffers. Its IOL = 12 mA (min) at VOL = 0.5 V and IOH = –1.0 mA (min) at VOH = 4.0 V meet LS-TTL interface requirements. For heavier loads or longer traces, local termination and decoupling remain essential to preserve edge integrity and delay accuracy.

Is DS1004Z-4+T compatible with 3.3 V logic systems?

No, DS1004Z-4+T is strictly a +5 V device: VCC must be 4.75–5.25 V, and VIH minimum is 2.2 V-not compatible with 3.3 V logic thresholds. Interfacing with 3.3 V systems requires level translation on both input and outputs. DS1004Z-4+T has no 3.3 V variant; attempting operation below 4.75 V risks undefined timing behavior and potential functional failure.

What is the maximum operating frequency supported by DS1004Z-4+T?

DS1004Z-4+T does not specify a maximum frequency, but its AC characteristics define usable limits: input pulse width must be ≥40% of Tap 5's tPLH (≥8.4 ns for DS1004Z-4+T), and period must exceed 4×tWI. With tWI ≥ 8.4 ns, practical operation supports input rates up to ~60 MHz continuous, assuming proper layout, decoupling, and LS-TTL loading. Higher frequencies risk degraded delay accuracy due to edge fidelity loss.