Analog Devices Inc./Maxim Integrated DS1033Z-12

Overview

DS1033Z-12 from Dallas Semiconductor (now Maxim Integrated) is a low-voltage, all-silicon 3-channel delay line IC operating at 3.3 V with ±1.5 ns initial delay tolerance, ±1.0 ns temperature/voltage drift, and identical 12 ns nominal propagation delay on all three outputs (tPLH/tPHL). It preserves input signal symmetry via precise leading/trailing edge timing and targets high-reliability digital timing correction in FPGA/CPLD clock alignment and bus skew management.

For engineers reviewing the DS1033Z-12 datasheet, DS1033Z-12 pinout, DS1033Z-12 application, or DS1033Z-12 equivalent, this page delivers verified package mapping (8-pin SOIC), confirmed triple-delay architecture, absolute maximum ratings, DC/AC electrical specs, and real-world use context for deterministic signal path tuning.

Technical Context

The DS1033Z-12 implements three independent logic-buffered delay paths within a single monolithic silicon die, each delivering matched 12 ns propagation delay (tPLH/tPHL) under nominal conditions (25°C, VCC = 3.3 V). Its design ensures sub-nanosecond edge fidelity-maintaining input pulse symmetry by controlling both rising and falling edge delays to within ±1.5 ns initial tolerance.

It operates across 2.7 V–3.6 V supply range with guaranteed performance over 0°C–70°C ambient, draws ≤25 mA active current, and supports standard PCB assembly processes including vapor phase, IR, and wave soldering. Input and output stages are TTL-compatible with VIH ≥ 2.0 V, VIL ≤ 0.8 V, and drive capability of –1 mA (IOH) / +8 mA (IOL) at VCC = 2.7 V.

Key Specifications

Pinout & Package

DS1033Z-12 is housed in an 8-pin SOIC (150-mil) package with gull-wing leads, RoHS-compliant, and rated for vapor phase, IR, and wave soldering. Pin 1 is marked by a beveled corner or dot; substrate pins (Sub) are internally connected and must remain unconnected externally.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1033M-12 and MAX9992ETE+, the DS1033Z-12 offers the lowest BOM cost and smallest footprint for fixed 12 ns triple-delay applications, with proven stability across voltage and temperature-making it ideal for cost-sensitive, high-volume industrial timing correction where programmability is unnecessary.

Availability

DS1033Z-12 is available at Aetrix Electronics and suitable for FPGA clock alignment, PCI bus compensation, and DDR memory interface tuning requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across manufacturing lots.

Supply support for DS1033Z-12 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, telecom, and computing markets before integration into Analog Devices.

The DS1033 series was designed specifically for deterministic digital signal delay correction in high-speed logic interfaces-addressing skew, alignment, and synchronization challenges in FPGA, memory, and bus subsystems without external passive components.

FAQ

What is the guaranteed delay accuracy of DS1033Z-12 over its full operating temperature range?

The DS1033Z-12 guarantees ±1.0 ns additional delay variation over 0°C to 70°C and supply voltage range 2.7 V to 3.6 V, on top of its ±1.5 ns initial tolerance at 25°C and 3.3 V. This means total delay deviation stays within ±2.5 ns across all specified conditions, ensuring predictable inter-signal alignment in industrial environments where DS1033Z-12 is deployed.

Can DS1033Z-12 be used with 5 V logic systems?

No, DS1033Z-12 is strictly a 3.3 V device with absolute maximum VCC of 6.0 V but operational specification limited to 2.7–3.6 V. Driving its inputs with 5 V signals exceeds VIH (max 3.8 V) and risks latch-up or accelerated degradation. For 5 V systems, DS1035-series variants or level-shifting buffers must be used alongside DS1033Z-12.

Does DS1033Z-12 require external decoupling capacitors?

Yes, DS1033Z-12 requires a minimum 0.1 µF ceramic capacitor placed as close as possible between VCC and GND pins. This is explicitly mandated in the datasheet to suppress supply noise that could modulate delay values or induce output jitter-especially critical when DS1033Z-12 is used in high-speed clock alignment applications.

How are the substrate (Sub) pins on DS1033Z-12 handled in PCB layout?

The Sub pins on DS1033Z-12 are internally connected to the silicon die substrate and must remain unconnected externally. No traces, vias, or copper pours should contact them. Doing so may introduce ground loops, noise coupling, or latch-up risk. The DS1033Z-12 datasheet explicitly states "do not make any external connections to these pins" - a requirement strictly enforced in validated DS1033Z-12 layouts.

Is DS1033Z-12 pin-compatible with DS1033Z-10 or other members of the DS1033Z family?

Yes, all DS1033Z-x variants (including DS1033Z-12) share identical 8-pin SOIC pinout, electrical interface, and supply requirements-the only difference is nominal delay value. This allows direct substitution during prototyping or revision changes without PCB modification, provided the target application tolerates the specific delay (e.g., replacing DS1033Z-10 with DS1033Z-12 adds 2 ns per channel).