Analog Devices Inc./Maxim Integrated DS1100Z-20

Overview

DS1100Z-20 from Maxim Integrated is a 5-tap silicon delay line IC delivering fixed, equally spaced delays of 4ns, 8ns, 12ns, 16ns, and 20ns at each tap; operates at 5V ±5%, supports -40°C to +85°C industrial temperature range, and drives up to 10 LS-TTL loads per tap-used in digital timing alignment, pulse shaping, and clock skew compensation in high-speed logic systems.

For engineers reviewing the DS1100Z-20 datasheet, DS1100Z-20 pinout, DS1100Z-20 application, or DS1100Z-20 equivalent, key selection considerations include tap delay precision (±4ns over full temperature range), leading/trailing edge matching, SO-8 package compatibility, TTL/CMOS input/output interface, and low-power CMOS operation with 30–50mA active current.

Technical Context

The DS1100Z-20 implements an all-silicon delay architecture with five fixed, monotonic delay taps referenced to a single input signal; all taps exhibit correlated drift under voltage or temperature variation-ensuring consistent inter-tap spacing. Delay accuracy is specified at ±4ns (for ≤40ns delays) over -40°C to +85°C, measured at 1.5V transition points on both rising and falling edges.

It functions as a passive timing element without internal logic control or programmability; input pulse width must exceed 20% of Tap 5 delay (i.e., ≥4ns), and power-up time is 200μs. The device requires no external components and is compatible with vapor-phase, IR, and wave soldering processes.

Key Specifications

Pinout & Package

DS1100Z-20 is housed in an 8-pin SOIC (150-mil) surface-mount package (package code S8+4, outline 21-0041), optimized for PCB area savings and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1100Z-20, DS1000-20 lacks industrial temperature rating and precision, while MAX9600EUA+ adds programmability at the expense of BOM cost, layout complexity, and power. DS1100Z-20 remains optimal for fixed, low-risk, high-volume timing alignment where simplicity and repeatability are prioritized.

Availability

DS1100Z-20 is available at Aetrix Electronics and suitable for digital test equipment, high-speed logic interface design, pulse width modulation control, and digital signal conditioning requiring stable component supply and long-term industrial-grade availability.

Supply support for DS1100Z-20 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

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and timing ICs for industrial, automotive, and communications applications, emphasizing reliability, integration, and performance.

The DS1100 series belongs to Maxim's economy timing element product line, engineered specifically to replace hybrid delay lines with fully silicon-based, surface-mount alternatives offering improved stability, lower cost, and broader temperature support.

FAQ

What is the nominal delay value for each tap of the DS1100Z-20?

The DS1100Z-20 provides five fixed, equally spaced delays: Tap 1 = 4ns, Tap 2 = 8ns, Tap 3 = 12ns, Tap 4 = 16ns, and Tap 5 = 20ns. These values are specified at +25°C and 5V, with guaranteed tolerance of ±4ns over the full -40°C to +85°C operating range. Each tap reproduces both leading and trailing edges with identical delay, preserving pulse integrity in the DS1100Z-20.

Is the DS1100Z-20 compatible with 3.3V logic systems?

No, the DS1100Z-20 is designed exclusively for 5V operation (4.75V to 5.25V). Its input thresholds (VIH = 2.2V min, VIL = 0.8V max) and output drive levels are specified only at 5V, and it does not guarantee functionality or timing accuracy at 3.3V supply or interface levels. For 3.3V systems, alternative delay solutions must be selected-DS1100Z-20 requires strict adherence to its 5V supply condition.

Does the DS1100Z-20 require external decoupling capacitors?

Yes, DS1100Z-20 requires local VCC-to-GND decoupling-typically a 0.1μF ceramic capacitor placed within 2mm of pins 1 (VCC) and 8 (GND). This minimizes supply noise-induced jitter and ensures delay stability, especially under fast-switching conditions. Failure to decouple may cause timing variation exceeding the ±4ns specification and degrade edge fidelity in the DS1100Z-20.

Can the DS1100Z-20 drive modern CMOS loads like 74LVC or 74AUC families?

The DS1100Z-20 is rated to drive up to 10 LS-TTL loads (IOL = 12mA, IOH = -1mA), which corresponds to ~10 × 20pF capacitive load. While it can often interface with low-capacitance 74LVC inputs, it is not characterized for those families. For guaranteed compatibility with 74LVC or 74AUC, verify load capacitance and switching thresholds against DS1100Z-20's output specs-design margin should be confirmed per application.

What is the maximum input frequency supported by the DS1100Z-20?

The DS1100Z-20 has no hard upper frequency limit, but AC performance degrades near maximum usable rates: input pulse width must be ≥4ns (20% of Tap 5 delay), and period must be ≥2× pulse width. At high frequencies (>1MHz), active current (ICC) increases, and delay accuracy becomes sensitive to PCB layout and decoupling. The DS1100Z-20 is best applied in static or low-repetition timing roles-not continuous high-frequency clock distribution.