Analog Devices Inc./Maxim Integrated DS1100Z-75/T&R

Overview

DS1100Z-75/T&R from Maxim Integrated is a 5-tap silicon delay line providing precisely spaced 15ns, 30ns, 45ns, 60ns, and 75ns delays at 5V operation, designed to reproduce both leading and trailing edges with equal precision in timing-critical digital systems such as clock skew correction and pulse width modulation. It drives up to 10 74LS loads per tap and operates across -40°C to +85°C.

For engineers reviewing the DS1100Z-75/T&R datasheet, DS1100Z-75/T&R pinout, DS1100Z-75/T&R application, or DS1100Z-75/T&R equivalent, key selection considerations include tap delay accuracy over temperature, TTL/CMOS compatibility, SO-8 package footprint, and industrial-grade reliability without hybrid construction.

Technical Context

The DS1100Z-75/T&R implements an all-silicon delay architecture with five fixed, equally spaced output taps referenced to a single input signal. Each tap delivers deterministic propagation delay with ±4ns tolerance over -40°C to +85°C for delays ≤40ns, and ±13% for delays >40ns - here, TAP5 = 75ns falls under the percentage-based tolerance.

It uses low-power CMOS logic, accepts TTL/CMOS-compatible input levels (VIH ≥ 2.2V, VIL ≤ 0.8V), and maintains stable delay performance across 4.75V–5.25V supply range. Input-to-output delay is measured at 1.5V crossing points for both rising and falling edges, ensuring edge fidelity critical for synchronous logic alignment.

Key Specifications

Pinout & Package

DS1100Z-75/T&R is housed in an 8-pin SOIC (150-mil) surface-mount package, compatible with standard reflow soldering processes including vapor-phase, IR, and wave. The package provides compact PCB area usage and eliminates hybrid assembly complexity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1000Z-75 and MAX9601EUA+, the DS1100Z-75/T&R offers superior temperature stability, lower cost, and simpler integration for fixed-delay applications - but lacks programmability or hybrid ruggedness.

Availability

DS1100Z-75/T&R is available at Aetrix Electronics and suitable for digital timing alignment, pulse shaping, logic hazard suppression, and test equipment calibration requiring stable component supply across industrial temperature ranges.

Supply support for DS1100Z-75/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

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

The DS1100 series belongs to Maxim's economy timing element product line, engineered to replace hybrid delay lines with all-silicon alternatives while maintaining TTL/CMOS compatibility and industrial temperature operation.

FAQ

What is the nominal delay value for each tap of the DS1100Z-75/T&R?

The DS1100Z-75/T&R provides five equally spaced nominal delays: TAP1 = 15ns, TAP2 = 30ns, TAP3 = 45ns, TAP4 = 60ns, and TAP5 = 75ns. These values are specified at +25°C and 5V, with tolerance scaling based on delay magnitude - ±4ns for taps ≤40ns and ±13% for TAP5. The DS1100Z-75/T&R achieves this using monolithic silicon delay elements, not LC or hybrid structures.

Is the DS1100Z-75/T&R compatible with 3.3V logic systems?

No, the DS1100Z-75/T&R is specified only for 5V operation (4.75V–5.25V) and requires TTL/CMOS-compatible input thresholds (VIH ≥ 2.2V, VIL ≤ 0.8V). While it may function with 3.3V inputs in some cases, timing parameters and output drive are not guaranteed outside the 5V specification. For 3.3V systems, consider level-shifting or alternative delay devices explicitly rated for 3.3V. The DS1100Z-75/T&R does not support dual-supply or voltage translation.

Does the DS1100Z-75/T&R require external decoupling capacitors?

Yes, the DS1100Z-75/T&R requires local 0.1μF ceramic decoupling between VCC (Pin 1) and GND (Pin 8) to maintain delay stability and minimize supply-induced jitter. The datasheet specifies that active current (ICC) reaches up to 50mA at 1MHz, and inadequate decoupling causes measurable delay variation. This requirement applies regardless of system-level bulk capacitance - the DS1100Z-75/T&R must have dedicated high-frequency bypassing adjacent to its SO-8 package.

Can the DS1100Z-75/T&R drive modern CMOS loads like 74LVC or 74AUC families?

The DS1100Z-75/T&R is characterized to drive up to 10 × 74LS loads (≈1.6mA per input), which exceeds the input leakage and capacitance requirements of 74LVC and 74AUC families at 5V. However, its output voltage swing (VOH ≈ 4V min, VOL ≈ 0.5V max) meets TTL thresholds but may fall short of strict 5V CMOS VIH minimums (often 3.5V). For robust interfacing, verify load input thresholds and consider buffer stages if marginal. The DS1100Z-75/T&R was validated for 74LS, not low-voltage CMOS.

What does the "/T&R" suffix indicate in DS1100Z-75/T&R?

The "/T&R" suffix in DS1100Z-75/T&R denotes tape-and-reel packaging - a standard carrier format for automated SMT placement. It contains the same SO-8 (150-mil) device as DS1100Z-75, with identical electrical and thermal specifications. No functional or parametric differences exist between /T&R and non-/T&R variants; the suffix solely indicates packaging method and reel quantity (typically 2500 units per reel). The DS1100Z-75/T&R is RoHS-compliant and lead(Pb)-free.