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Analog Devices Inc./Maxim Integrated DS1100LU-125+
- Part No.:
- DS1100LU-125+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1100LU-125+.pdf
- Description:
- IC DELAY LINE 5TAP 125NS 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:102
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Product details
Overview
DS1100LU-125+ from Maxim Integrated is a 3.3V, 5-tap silicon delay line with nominal delays of 25ns, 50ns, 75ns, 100ns, and 125ns across TAP1–TAP5. It operates from 3.0V to 3.6V over –40°C to +85°C, delivers TTL/CMOS-compatible outputs, and drives up to 10 × 74LS loads per tap. Used in high-speed timing alignment for test equipment and digital signal synchronization.
For engineers reviewing the DS1100LU-125+ datasheet, DS1100LU-125+ pinout, DS1100LU-125+ application, or DS1100LU-125+ equivalent, key selection criteria include tap delay accuracy (±4ns at –40°C to +85°C for ≤40ns delays), leading/trailing-edge matching, low-power CMOS operation, and µMAX-8 package compatibility with vapor-phase and IR reflow.
Technical Context
The DS1100LU-125+ implements an all-silicon delay architecture with five fixed, equally spaced taps-no external components or trimming required. Each tap reproduces both rising and falling edges with matched propagation delay, enabling precise edge-aligned timing in clock distribution and pulse-shaping circuits.
It uses a single 3.3V supply and features rail-to-rail input compatibility (VIH ≥ 2.0V, VIL ≤ 0.8V), output drive capability of ±1mA/8mA (IOH/IOL), and sub-3ns output rise/fall times. Delay tolerance is specified as ±4ns (for TAP1–TAP3) and ±13% (for TAP4–TAP5) across the full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0V to 3.6V - ensures stable operation with standard 3.3V LDOs and compatibility with mixed-voltage digital systems. |
| Nominal Tap Delays | 25ns / 50ns / 75ns / 100ns / 125ns - enables precise multi-point timing alignment without external delay networks. |
| Delay Tolerance | ±4ns (TAP1–TAP3), ±13% (TAP4–TAP5) at –40°C to +85°C - guarantees predictable skew across temperature and voltage variation. |
| Output Drive | 8mA sink / 1mA source - sufficient to directly drive 10 × 74LS inputs without buffering in legacy logic interfaces. |
| Input Pulse Width | ≥20ns (min) - supports high-frequency periodic signals up to ~50MHz while maintaining delay fidelity. |
| Power-Up Time | 200μs - allows immediate use after power stabilization; no initialization sequence required. |
Pinout & Package
DS1100LU-125+ is housed in an 8-pin µMAX package (U8+1 outline, 3mm × 3mm, 0.65mm pitch), compatible with automated SMT assembly and RoHS-compliant reflow profiles (lead-free: +260°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Digital input signal source; accepts TTL/CMOS logic levels with 5–10pF input capacitance. |
| 2 | TAP 2 | Second delay output (50ns); electrically identical to other taps, capable of driving 10 × 74LS loads. |
| 3 | TAP 4 | Fourth delay output (100ns); matches TAP2/TAP1 edge precision and shares same DC/AC specs. |
| 4 | GND | Analog/digital ground reference; must be low-impedance and decoupled near VCC pin. |
| 5 | TAP 5 | Fifth delay output (125ns); maximum delay tap; delay tolerance ±13% over full temperature range. |
| 6 | TAP 3 | Third delay output (75ns); center tap; exhibits unidirectional delay drift with temperature/voltage. |
| 7 | TAP 1 | First delay output (25ns); shortest fixed delay; ±4ns tolerance ensures tight skew control. |
| 8 | VCC | +3.3V supply input; requires local 0.1μF ceramic decoupling capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay line | Eliminates hybrid or LC-based delay elements-ensures long-term stability, no aging drift, and full CMOS process compatibility. |
| Equal leading/trailing edge accuracy | Enables clean pulse-width preservation across all taps-critical for duty-cycle-sensitive applications like strobe generation. |
| Five fixed, equally spaced taps | Provides deterministic timing offsets without configuration overhead-ideal for parallel sampling, deskew, or multi-phase clock derivation. |
| TTL-/CMOS-compatible I/O | Interoperates directly with legacy 74LS, modern 74LVC, and FPGA I/O banks without level-shifting circuitry. |
| Vapor-phase and IR solderable | Supports industry-standard reflow profiles including Pb-free (+260°C) and SnPb (+240°C)-reduces manufacturing risk. |
Applications
| Test Equipment Signal Deskew | Digital Logic Timing Alignment |
|---|---|
Use Scenario: Aligning asynchronous trigger and data capture paths in high-speed oscilloscopes and logic analyzers. IC Role / Device Role / Timing Role: DS1100LU-125+ provides calibrated, multi-tap delays to compensate for PCB trace length mismatches between channels. Use Value: Enables sub-nanosecond channel-to-channel skew correction without FPGA-based delay tuning or manual calibration. | Use Scenario: Synchronizing enable signals across multiple 74LS-based latch banks in industrial control backplanes. IC Role / Device Role / Timing Role: DS1100LU-125+ generates staggered enable pulses with fixed 25ns increments to prevent simultaneous switching current spikes. Use Value: Reduces peak supply current by >40% compared to synchronous enable distribution, lowering noise and EMI. |
| High-Speed Data Capture Strobing | Legacy Bus Timing Extension |
Use Scenario: Generating precisely timed sample strobes for parallel ADCs operating at 40MSPS in medical imaging front-ends. IC Role / Device Role / Timing Role: DS1100LU-125+ delivers jitter-free, edge-matched strobes derived from a master clock to align sampling windows. Use Value: Maintains ENOB > 10.5 bits by eliminating aperture jitter introduced by programmable delay ICs or PLL-based solutions. | Use Scenario: Extending setup/hold timing margins on ISA or PC/104 bus peripherals interfacing with modern microcontrollers. IC Role / Device Role / Timing Role: DS1100LU-125+ inserts fixed 50ns–125ns delays into address/data strobe paths to meet legacy timing specifications. Use Value: Avoids redesign of legacy peripheral modules while enabling drop-in integration with faster host processors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1100LZ-125+ | Same electrical specs and delay values, but in 8-pin SO (150-mil) package instead of µMAX. | Better thermal dissipation and hand-solderability; larger PCB footprint required. | Select DS1100LZ-125+ when board space permits and higher power handling or prototyping ease is prioritized. |
| ON Semiconductor MC100EP195DG | Differential ECL output, 3.3V supply, 5-tap, but with ±10% delay tolerance and no guaranteed leading/trailing edge match. | Requires level translation for single-ended systems; suited for RF/microwave timing, not logic-level deskew. | Choose MC100EP195DG only for differential signaling environments where ECL speed and bandwidth outweigh edge-matching requirements. |
Compared with DS1100LU-125+, DS1100LZ-125+ offers identical timing performance in a larger SO package, while MC100EP195DG trades edge-matching precision for differential speed-making DS1100LU-125+ optimal for single-ended, precision logic timing where board area is constrained.
Availability
DS1100LU-125+ is available at Aetrix Electronics and suitable for test instrumentation, industrial control backplanes, medical imaging data capture, and legacy bus interface design requiring stable component supply and long-term obsolescence management.
Supply support for DS1100LU-125+ 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 solutions for industrial, automotive, and communications markets, with emphasis on reliability and integration.
The DS1100L series belongs to Maxim's economy timing element portfolio, engineered specifically for cost-sensitive, high-volume applications needing deterministic, low-jitter delay without programmability overhead.
FAQ
What is the operating temperature range for DS1100LU-125+?
The DS1100LU-125+ is rated for continuous operation from –40°C to +85°C. All electrical parameters-including delay tolerance, output drive, and supply current-are guaranteed across this full industrial temperature range. The device undergoes 100% temperature testing during production, and its all-silicon construction ensures minimal parametric drift over temperature cycles.
Does DS1100LU-125+ require external configuration or programming?
No, DS1100LU-125+ is a fully static, unprogrammable delay line. Its five tap delays (25ns, 50ns, 75ns, 100ns, 125ns) are factory-trimmed and fixed. No clocks, control pins, or serial interfaces are needed-only power (VCC/GND), input (IN), and output loads connected to TAP1–TAP5. This eliminates firmware dependencies and startup delays.
Can DS1100LU-125+ drive modern CMOS loads like 74LVC or FPGA I/O?
Yes, DS1100LU-125+ is TTL-/CMOS-compatible and can directly drive 74LVC inputs (IIL ≤ ±20μA, VIH ≥ 2.0V) and most FPGA bank I/O configured for 3.3V LVTTL or LVCMOS standards. Its 8mA sink / 1mA source capability exceeds typical 74LVC input requirements, and its 5–10pF input capacitance avoids loading issues on fast clock lines.
How does DS1100LU-125+ handle input pulse width and frequency limits?
DS1100LU-125+ specifies a minimum input pulse width of 20ns and supports repetition rates up to ~50MHz under typical conditions. At higher frequencies or marginal pulse widths, delay accuracy may degrade due to layout-dependent factors (e.g., decoupling, trace inductance). For reliable operation above 25MHz, maintain short input traces and use local 0.1μF VCC decoupling.
Is DS1100LU-125+ RoHS-compliant and lead(Pb)-free?
Yes, the "+" suffix in DS1100LU-125+ explicitly denotes a lead(Pb)-free and RoHS-compliant µMAX package. It meets JEDEC J-STD-020D reflow requirements for lead-free soldering (peak temperature +260°C, 10s max), and all internal die and bond wire materials comply with EU RoHS Directive 2011/65/EU Annex II substance restrictions.
DS1100LU-125+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Taps/Steps:
- 5
- Function:
- Nonprogrammable
- Delay to 1st Tap:
- 25ns
- Tap Increment:
- 25 ns
- Available Total Delays:
- 125ns
- Number of Independent Delays:
- 1
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1100LU-125+ FAQ
1.How can I place an order for DS1100LU-125+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1100LU-125+ 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-125+ reliable?
The price and inventory of DS1100LU-125+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1100LU-125+ is usually 5 days.
3.What payment methods are accepted for DS1100LU-125+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1100LU-125+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1100LU-125+?
DS1100LU-125+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1100LU-125+ 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-125+?
For technical support, including DS1100LU-125+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1100LU-125+ requirements.
6.How does Aetrix verify that DS1100LU-125+ is sourced from the original manufacturer or authorized distributors?
All DS1100LU-125+ 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-125+ meets industry standards.
7.What is the process for return or replacement of DS1100LU-125+?
All DS1100LU-125+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1100LU-125+, 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-125+ part is unused and in its original packaging.
Return procedure for DS1100LU-125+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1100LU-125+ Tags
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