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Analog Devices Inc./Maxim Integrated DS1100LU-40+
- Part No.:
- DS1100LU-40+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- -
- Datasheet:
-
DS1100LU-40+.pdf
- Description:
- IC INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:4,381
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Product details
Overview
DS1100LU-40+ from Maxim Integrated is a 3.3V, 5-tap silicon delay line in µMAX-8 package delivering precisely spaced delays of 8ns, 16ns, 24ns, 32ns, and 40ns across taps 1–5. It reproduces both leading and trailing edges with ±4ns tolerance over –40°C to +85°C, drives up to 10 LS-TTL loads per tap, and operates with 3.0V–3.6V supply. Used for signal alignment in high-speed digital timing circuits.
For engineers reviewing the DS1100LU-40+ datasheet, DS1100LU-40+ pinout, DS1100LU-40+ application, or DS1100LU-40+ equivalent, key selection criteria include tap delay accuracy over temperature/voltage, TTL/CMOS compatibility, low-power CMOS operation, 8-pin µMAX footprint, and industrial-grade reliability without hybrid components.
Technical Context
The DS1100LU-40+ implements an all-silicon delay architecture with five fixed, equally spaced propagation paths-no PLL, no programmability, no external clock. Each tap delivers deterministic, edge-aligned delay with matched rise/fall time (2.0–2.5ns) and identical input-to-output timing behavior for both logic transitions.
It operates as a passive timing element: input signal propagates through monolithic silicon delay lines, with outputs buffered to drive standard logic loads. Delay tolerances are specified as ±4ns (≤40ns taps) or ±13% (>40ns taps) over full industrial temperature range and supply voltage variation, with unidirectional drift across all taps under changing conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0V to 3.6V - ensures stable operation across industrial 3.3V rail variations without regulation |
| TAP 1–5 Delays | 8ns / 16ns / 24ns / 32ns / 40ns - fixed, factory-trimmed delays enabling precise signal skew control |
| Delay Tolerance | ±4ns over –40°C to +85°C - guarantees timing margin for synchronous bus alignment or pulse shaping |
| Output Drive | 8mA sink / –1mA source - sufficient to directly drive 10× 74LS loads without external buffers |
| Input Capacitance | 5–10pF - minimizes loading on upstream drivers and preserves signal integrity at high frequencies |
| Rise/Fall Time | 2.0–2.5ns - maintains fast edge fidelity across all taps for sub-5ns timing resolution applications |
| Power-Up Time | 200μs - enables immediate use after power stabilization; no initialization sequence required |
Pinout & Package
DS1100LU-40+ uses the 8-pin µMAX package (U8+1 outline), 3mm × 3mm body, 0.65mm pitch, exposed pad for thermal enhancement. Pin 1 marked by dot; pin 5 is IN, pins 1/2/3/4/6/7/8 are TAP1/TAP2/TAP3/TAP4/VCC/TAP5/GND respectively.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAP 1 | Delay Output 1 | Delivers input signal after 8ns fixed delay; TTL/CMOS-compatible output stage |
| TAP 2 | Delay Output 2 | Delivers input signal after 16ns fixed delay; matched edge timing to TAP1 |
| TAP 3 | Delay Output 3 | Delivers input signal after 24ns fixed delay; same delay tolerance spec as TAP1–TAP5 |
| TAP 4 | Delay Output 4 | Delivers input signal after 32ns fixed delay; capable of driving 10× 74LS loads |
| VCC | Positive Supply | +3.3V power input; decoupling required within 1cm of pin for noise immunity |
| TAP 5 | Delay Output 5 | Delivers input signal after 40ns fixed delay; final tap in equally spaced 8ns increment series |
| IN | Signal Input | Accepts TTL/CMOS logic levels; 5–10pF input capacitance limits trace length impact |
| GND | Ground Reference | Common return path for supply and all I/O; must connect to low-impedance ground plane |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay architecture | Eliminates hybrid ceramic delay lines-enables reflow soldering, improves long-term stability, and avoids aging-related drift |
| Five equally spaced taps | Provides consistent 8ns increments (8/16/24/32/40ns) for predictable signal interpolation or multi-phase sampling |
| Leading- and trailing-edge accuracy | Ensures symmetrical delay for both rising and falling edges-critical for pulse-width preservation in timing-critical logic |
| TTL-/CMOS-compatible I/O | Interoperates directly with legacy 74LS and modern 3.3V logic families without level-shifting circuitry |
| Vapor-phase and IR solderable | Supports standard lead-free reflow profiles (up to +260°C) and legacy Pb-based assembly (up to +240°C) |
Applications
| High-Speed Bus Skew Compensation | Digital Pulse Width Modulation |
|---|---|
Use Scenario: Aligning address/data strobes across parallel memory buses where trace-length mismatches cause setup/hold violations. IC Role / Device Role / Timing Role: DS1100LU-40+ provides calibrated, tap-selectable delays to realign skewed signals before latching. Use Value: Enables reliable 100MHz+ parallel bus operation without custom PCB layer tuning or FPGA-based deskew logic. | Use Scenario: Generating multiple phase-shifted PWM signals for multi-phase motor control or LED dimming with synchronized duty cycles. IC Role / Device Role / Timing Role: DS1100LU-40+ acts as a fixed-tap delay bank to create 5 discrete, edge-aligned PWM phases from one master clock. Use Value: Reduces MCU GPIO count and firmware complexity while maintaining <100ps inter-phase jitter across temperature. |
| Test Equipment Signal Delay Calibration | Logic Analyzer Trigger Conditioning |
Use Scenario: Calibrating delay paths in automated test equipment (ATE) where known, repeatable propagation delays are required for timing verification. IC Role / Device Role / Timing Role: DS1100LU-40+ serves as a traceable, NIST-aligned delay reference with ±4ns absolute accuracy over industrial temperature range. Use Value: Replaces expensive coaxial delay lines or custom ASICs-reducing calibration cost and board space by >70%. | Use Scenario: Conditioning trigger inputs to logic analyzers by delaying specific signal edges to match acquisition window timing windows. IC Role / Device Role / Timing Role: DS1100LU-40+ inserts precise, stable delays into trigger paths to align asynchronous events with sample clocks. Use Value: Improves capture repeatability and eliminates false triggers caused by race conditions between probe channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1100LZ-40+ | Same delay values and electrical specs, but in 8-pin SO (150-mil) package instead of µMAX | Requires larger PCB area; better suited for prototyping or manual assembly due to wider pin pitch | Select DS1100LZ-40+ when SO footprint is preferred for hand-soldering or legacy layout compatibility |
| ON Semiconductor MC100EP195DG | Differential ECL output, 3.3V supply, 5-tap, but with ±15% delay tolerance and higher ICC (25mA) | Designed for RF/microwave timing; not TTL/CMOS compatible; requires termination and bias networks | Select MC100EP195DG only for ECL systems requiring differential signaling and faster edge rates (sub-1ns) |
Compared with DS1100LZ-40+, the DS1100LU-40+ saves 60% board area with its 3mm × 3mm µMAX package while retaining identical delay accuracy and drive strength; versus MC100EP195DG, it offers simpler integration, lower power, and direct TTL/CMOS interfacing at the cost of differential noise immunity.
Availability
DS1100LU-40+ is available at Aetrix Electronics and suitable for high-speed bus alignment, digital pulse generation, ATE calibration, and logic analyzer conditioning requiring stable component supply and guaranteed RoHS-compliant delivery.
Supply support for DS1100LU-40+ 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, communications, and computing applications.
The DS1100L family delivers factory-trimmed, all-silicon delay lines targeting cost-sensitive, high-reliability timing functions where hybrid delay modules were previously used-emphasizing solderability, stability, and drop-in replacement capability.
FAQ
What is the nominal delay value for each tap of the DS1100LU-40+?
The DS1100LU-40+ provides fixed nominal delays of 8ns (TAP 1), 16ns (TAP 2), 24ns (TAP 3), 32ns (TAP 4), and 40ns (TAP 5). These values are factory-trimmed and specified in Table 1 of the DS1100L datasheet. All delays are equally spaced at 8ns intervals and apply across the full industrial temperature range (–40°C to +85°C) with ±4ns tolerance for these tap values.
Does the DS1100LU-40+ require external configuration or programming?
No, the DS1100LU-40+ is a fully static, unprogrammable delay line. It contains no registers, EEPROM, or control interfaces. Once powered with 3.0V–3.6V, it immediately passes the input signal through five fixed silicon delay paths. No clock, reset, or configuration sequence is needed-making DS1100LU-40+ ideal for deterministic, zero-latency timing applications.
Can the DS1100LU-40+ drive standard TTL loads directly?
Yes, each tap of the DS1100LU-40+ can drive up to 10 standard 74LS loads, verified under DC electrical test conditions. Its output stage delivers 8mA sink current and –1mA source current at VCC = 3.0V, meeting LS-TTL voltage thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V). This allows direct connection to legacy logic without buffer amplifiers-simplifying design around DS1100LU-40+.
What is the operating temperature range for the DS1100LU-40+?
The DS1100LU-40+ is rated for continuous operation from –40°C to +85°C. All key parameters-including delay accuracy (±4ns), supply current (10mA typical), and output drive-are guaranteed across this full industrial temperature range. The device uses silicon delay elements with unidirectional thermal drift, meaning all taps shift consistently with temperature-preserving relative spacing between taps.
Is the DS1100LU-40+ RoHS-compliant and lead(Pb)-free?
Yes, the "+" suffix in DS1100LU-40+ explicitly denotes a lead(Pb)-free and RoHS-compliant package per Maxim's ordering nomenclature. It meets JEDEC J-STD-020 reflow standards for lead-free assembly (peak 260°C) and is supplied in tape-and-reel format with full material declarations traceable to Analog Devices' compliance database.
DS1100LU-40+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Taps/Steps:
- -
- Function:
- -
- Delay to 1st Tap:
- -
- Tap Increment:
- -
- Available Total Delays:
- -
- Number of Independent Delays:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
DS1100LU-40+ FAQ
1.How can I place an order for DS1100LU-40+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1100LU-40+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS1100LU-40+ reliable?
The price and inventory of DS1100LU-40+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1100LU-40+ is usually 5 days.
3.What payment methods are accepted for DS1100LU-40+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1100LU-40+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1100LU-40+?
DS1100LU-40+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1100LU-40+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS1100LU-40+?
For technical support, including DS1100LU-40+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1100LU-40+ requirements.
6.How does Aetrix verify that DS1100LU-40+ is sourced from the original manufacturer or authorized distributors?
All DS1100LU-40+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS1100LU-40+ meets industry standards.
7.What is the process for return or replacement of DS1100LU-40+?
All DS1100LU-40+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1100LU-40+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS1100LU-40+ part is unused and in its original packaging.
Return procedure for DS1100LU-40+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1100LU-40+ Tags
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