Analog Devices Inc./Maxim Integrated DS1004Z-5/T&R

Overview

DS1004Z-5/T&R from Dallas Semiconductor is a 5-tap all-silicon delay line with precise tap-to-tap delays of 2–5 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 - used in high-speed clock deskewing and signal alignment in test instrumentation and digital logic systems.

For engineers reviewing the DS1004Z-5/T&R datasheet, DS1004Z-5/T&R pinout, DS1004Z-5/T&R application, or DS1004Z-5/T&R equivalent, key selection criteria include input-to-tap1 delay (5 ns), tap5 cumulative delay (25 ns), 8-pin SOIC (150-mil) package, ±1.75 ns worst-case delay variation across 0°C–70°C and VCC = 5.0V ±5%, and edge-preserving symmetry for timing-critical sampling circuits.

Technical Context

The DS1004Z-5/T&R implements a monolithic silicon delay chain with five discrete output taps, each delayed by fixed, factory-trimmed intervals relative to the input. It uses CMOS circuitry with TTL-level input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and delivers matched rising/falling edge delays (tPLH/tPHL) within ±1.75 ns over full operating conditions.

Delay accuracy is maintained via on-die trimming and process compensation, enabling stable tap-to-tap spacing without external calibration. The device operates at 5 V ±5% and draws up to 75 mA active current, with output rise/fall times ≤2.5 ns into 15 pF load - optimized for synchronous logic interfacing and pulse-width preservation in high-repetition-rate digital systems.

Key Specifications

Pinout & Package

DS1004Z-5/T&R is housed in an 8-pin SOIC package (150-mil width), RoHS-compliant, vapor-phase/wave-solderable, with standard pin pitch and thermal profile compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1004M-5 and MAX9995, the DS1004Z-5/T&R offers optimal balance of fixed-precision delay, SOIC manufacturability, and low-power CMOS integration - making it the preferred choice for cost-sensitive, high-volume SMT designs where delay values are known and unchanging.

Availability

DS1004Z-5/T&R is available at Aetrix Electronics and suitable for digital test equipment, high-speed logic timing verification, and industrial PLC input synchronization requiring stable component supply, consistent tape-and-reel delivery, and long-term production continuity.

Supply support for DS1004Z-5/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, then Analog Devices) specialized in precision timing, memory, and mixed-signal ICs for industrial and instrumentation markets.

The DS1004 product line was designed specifically to replace unreliable analog delay lines and quartz-based solutions with monolithic silicon alternatives offering guaranteed delay accuracy, temperature stability, and solder-reflow compatibility.

FAQ

What is the input-to-tap1 delay specification for DS1004Z-5/T&R?

The DS1004Z-5/T&R has a nominal input-to-tap1 delay of 5 ns, with a worst-case variation of ±1.75 ns across the full operating temperature range (0°C to +70°C) and supply voltage (4.75 V to 5.25 V). This value is fixed and factory-trimmed - no external adjustment is possible. All timing measurements are referenced to the 1.5 V threshold point on both rising and falling edges, ensuring consistent behavior for dual-edge applications.

Does DS1004Z-5/T&R support both rising and falling edge delay accuracy?

Yes, the DS1004Z-5/T&R guarantees matched delay accuracy for both rising (tPLH) and falling (tPHL) edges, with identical tolerances specified in Table 1 of the datasheet. Leading and trailing edge precision is preserved across all five taps, maintaining input signal symmetry - a key requirement for applications like pulse-width modulation timing and dual-edge sampling circuits where duty cycle fidelity matters.

What is the maximum capacitive load the DS1004Z-5/T&R outputs can drive?

The DS1004Z-5/T&R outputs are characterized to drive up to 10 LS-TTL loads (equivalent to ~15 pF total load capacitance) while maintaining specified rise/fall times (≤2.5 ns) and delay accuracy. Driving heavier loads will increase propagation delay and degrade edge fidelity; for >15 pF, external buffer amplification is recommended. Output drive strength is rated at 12 mA sink and –1 mA source under VCC = 4.75 V.

Is DS1004Z-5/T&R compatible with 3.3 V logic systems?

No, the DS1004Z-5/T&R is strictly a 5 V device: its absolute maximum VCC is +7.0 V, but DC electrical specifications (VIH, VIL, ICC, IOH/IOL) are only guaranteed at VCC = 4.75 V to 5.25 V. Input thresholds are TTL-compatible (VIH ≥ 2.2 V), so it may accept 3.3 V logic-high signals in some cases, but output levels will be 5 V - level-shifting is required for safe interfacing with 3.3 V receivers. Never operate DS1004Z-5/T&R with VCC < 4.75 V.

What does the "/T&R" suffix indicate in DS1004Z-5/T&R?

The "/T&R" suffix in DS1004Z-5/T&R denotes Tape-and-Reel packaging: the device is supplied in EIA-481-D compliant 8 mm carrier tape, with 2,500 units per reel, optimized for automated surface-mount assembly. This format includes embossed pockets, cover tape sealing, and orientation marking - distinct from tube or rail packaging. DS1004Z-5/T&R is not functionally different from DS1004Z-5; the suffix solely indicates packaging configuration for manufacturing use.