Analog Devices Inc./Maxim Integrated DS1004Z-3

Overview

DS1004Z-3 from Dallas Semiconductor (now Maxim Integrated) is a 5-tap all-silicon delay line IC providing precise, temperature- and voltage-stable delays: input-to-TAP1 = 5 ns, TAP1–TAP2 = 3 ns, TAP2–TAP3 = 3 ns, TAP3–TAP4 = 3 ns, TAP4–TAP5 = 3 ns. It delivers ±0.75 ns nominal tap-to-tap tolerance and ±1.5 ns input-to-TAP1 tolerance over 0°C to +70°C and V_CC = 5.0 V ±5%, used in high-speed clock alignment and signal deskew in test instrumentation and digital logic systems.

For engineers reviewing the DS1004Z-3 datasheet, DS1004Z-3 pinout, DS1004Z-3 application, or DS1004Z-3 equivalent, key selection criteria include verified tap delay accuracy, CMOS/TTL-compatible drive capability (10 LS loads), edge-preserving symmetry, SOIC-8 packaging, and guaranteed 5 ns minimum input-to-TAP1 delay under full operating conditions.

Technical Context

The DS1004Z-3 implements a monolithic silicon delay chain with five buffered output taps, each delivering deterministic propagation delays referenced to a common input edge. Its architecture ensures matched rising/falling edge delays and preserves input pulse symmetry across all outputs.

It operates exclusively at V_CC = 5.0 V ±5% within 0°C to +70°C, with absolute maximum ratings including -1.0 V to +7.0 V on any pin and 50 mA short-circuit output current for ≤1 second. All timing parameters are measured at 1.5 V threshold with 15 pF load and 50 Ω source impedance.

Key Specifications

Pinout & Package

DS1004Z-3 uses a 150-mil 8-pin SOIC package (JEDEC MS-012), surface-mount compatible with vapor phase, IR, and wave soldering. Pin pitch is 1.27 mm; body width is 3.9 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1004M-3 and MAX9992ESE+, the DS1004Z-3 offers optimal balance of fixed-precision delay, SOIC-8 compactness, and proven reliability in production test systems - avoiding DIP mechanical limitations and programmable IC overhead.

Availability

DS1004Z-3 is available at Aetrix Electronics and suitable for high-speed logic test equipment, digital signal deskew, and programmable logic clock alignment requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for DS1004Z-3 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, acquired by Maxim Integrated in 2001, specialized in precision analog, timing, and mixed-signal ICs for industrial and test applications.

The DS1004 product line was engineered to replace unreliable SAW and discrete RC delay solutions with monolithic silicon alternatives offering guaranteed nanosecond-level delay accuracy and edge fidelity.

FAQ

What is the guaranteed minimum input-to-TAP1 delay for DS1004Z-3?

The DS1004Z-3 guarantees a minimum input-to-TAP1 delay of 5 ns under all operating conditions (0°C to +70°C, V_CC = 4.75 V to 5.25 V). This value is specified in Table 2 of the official datasheet and confirmed by production test limits - it is not a typical value but a hard lower bound used for timing budgeting in critical paths.

Does DS1004Z-3 support both rising and falling edge delays with equal accuracy?

Yes, DS1004Z-3 maintains identical delay accuracy on both rising (t_PLH) and falling (t_PHL) edges, as explicitly stated in the Terminology section and validated in AC Electrical Characteristics. The ±0.75 ns tap-to-tap tolerance and ±1.5 ns input-to-TAP1 tolerance apply to both edges, preserving input pulse symmetry across all five outputs.

Can DS1004Z-3 drive standard TTL loads directly?

Yes, DS1004Z-3 can directly drive up to 10 LS-TTL loads per output, as specified in the Description section and confirmed by I_OL = 12 mA and I_OH = -1 mA DC characteristics. This eliminates need for external buffer stages in most logic interfacing applications, provided V_CC remains within 4.75 V–5.25 V and PCB layout follows recommended decoupling practices.

What is the maximum operating temperature range for DS1004Z-3?

The DS1004Z-3 is rated for continuous operation from 0°C to +70°C ambient temperature, as defined in Absolute Maximum Ratings and used as the test condition for all AC/DC specifications. Operation outside this range is not characterized and may result in unverified delay drift or functional failure - no extended temperature grade (e.g., -40°C to +85°C) is offered for this part number.

Is DS1004Z-3 pin-compatible with other DS1004 variants like DS1004Z-2 or DS1004Z-4?

Yes, all DS1004Z-x variants (x = 2, 3, 4, 5) share identical 8-pin SOIC pinout, electrical interface, and supply requirements. Only the internal delay values differ - DS1004Z-3 provides 5/8/11/14/17 ns delays, while DS1004Z-2 provides 5/7/9/11/13 ns. No PCB change is needed when substituting between Z-series variants.