Analog Devices Inc./Maxim Integrated DS1004Z-2+T

Overview

DS1004Z-2+T from Analog Devices (acquired Dallas Semiconductor) is a 5-tap all-silicon delay line providing precise, temperature-stable tap-to-tap delays of 2 ns with ±0.75 ns nominal tolerance and ±1.5 ns over temperature/voltage. It delivers input-to-tap1 delay of 5 ns, supports CMOS/TTL logic levels, and drives up to 10 LS loads in high-speed digital timing applications such as clock deskewing and signal alignment.

For engineers reviewing the DS1004Z-2+T datasheet, DS1004Z-2+T pinout, DS1004Z-2+T application, or DS1004Z-2+T equivalent, key selection criteria include tap delay accuracy, edge symmetry preservation, input-to-output delay stability across 0°C–70°C, and compatibility with 5 V ±5% supply and standard DIP/SOIC PCB footprints.

Technical Context

The DS1004Z-2+T implements a monolithic silicon delay architecture with five discrete, buffered output taps-each precisely delayed relative to the previous by 2 ns. Its design ensures matched propagation for rising and falling edges, preserving input waveform symmetry critical for jitter-sensitive systems.

It operates exclusively at V_CC = 5.0 V ±5% across 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. Output rise/fall times are 2.0–2.5 ns into 15 pF load.

Key Specifications

Pinout & Package

DS1004Z-2+T is housed in a 150-mil 8-pin SOIC package (JEDEC MS-012), footprint-compatible with industry-standard 8-pin SOIC layouts and suitable for vapor phase, IR, and wave soldering per J-STD-020A.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1004M-2+T, DS1004Z-2+T offers identical timing performance in a smaller SOIC package for space-constrained designs; compared with MAX9992ESE+, it provides fixed 2 ns taps at 5 V with tighter ±0.75 ns nominal tolerance but no programmability.

Availability

DS1004Z-2+T is available at Aetrix Electronics and suitable for high-speed clock deskewing, digital signal alignment, logic glitch filtering, and test equipment pulse shaping requiring stable component supply and guaranteed long-term availability.

Supply support for DS1004Z-2+T 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

Analog Devices acquired Dallas Semiconductor in 2001 and maintains its precision timing portfolio, emphasizing high-reliability, analog-intensive ICs for industrial, instrumentation, and communications markets.

The DS1004Z-2+T belongs to Dallas Semiconductor's all-silicon delay line family, engineered specifically for deterministic, low-jitter signal delay in mission-critical timing paths where quartz or RC solutions lack stability or repeatability.

FAQ

What is the input-to-tap1 delay specification for DS1004Z-2+T?

The DS1004Z-2+T has a guaranteed minimum input-to-tap1 delay of 5 ns under nominal conditions (25°C, V_CC = 5.0 V). Per Table 2 in the datasheet, the nominal value is exactly 5 ns, with total tolerance of ±3.0 ns over temperature (0°C–70°C) and supply voltage (±5%). This delay is measured at the 1.5 V threshold point on both rising and falling edges.

Does DS1004Z-2+T support both rising and falling edge delay accuracy?

Yes, DS1004Z-2+T preserves leading and trailing edge precision across all five taps. The datasheet explicitly states that delay tolerances apply to both t_PLH and t_PHL, and that input symmetry is maintained-ensuring consistent 50% duty cycle propagation through each tap. This is confirmed in the "Leading and trailing edge precision preserves the input symmetry" feature statement.

What is the maximum output load capacity for DS1004Z-2+T?

Each output of DS1004Z-2+T is rated to drive up to 10 LS-TTL loads, equivalent to a 15 pF capacitive load with appropriate DC termination. The DC electrical characteristics specify I_OL = 12 mA (min) at V_OL = 0.5 V and I_OH = −1 mA (max) at V_OH = 4 V, confirming robust fanout capability under worst-case 5 V ±5% supply conditions.

Is DS1004Z-2+T RoHS compliant and lead-free?

Yes, DS1004Z-2+T is manufactured in a RoHS-compliant, lead-free process and meets JEDEC J-STD-020A reflow specifications. The device is marked with the "+T" suffix indicating tape-and-reel packaging and lead-free finish, and its 150-mil SOIC package uses matte tin lead plating compatible with standard Pb-free assembly processes.

Can DS1004Z-2+T operate at 3.3 V supply voltage?

No, DS1004Z-2+T is specified only for V_CC = 4.75 V to 5.25 V. The Absolute Maximum Ratings limit pin voltage to −1.0 V to +7.0 V, but DC Electrical Characteristics-including VIH, VIL, ICC, and output drive-are validated exclusively at 5.0 V ±5%. Operation at 3.3 V is outside datasheet specifications and may result in undefined timing behavior or failure to meet delay tolerances.