Analog Devices Inc./Maxim Integrated DS1100LU-175+
- Part No.:
- DS1100LU-175+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1100LU-175+.pdf
- Description:
- IC DELAY LINE 5TAP 175NS 8UMAX
- Quantity:
- Payment:

- Shipping:

Inventory:2,046
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Product details
Overview
DS1100LU-175+ from Maxim Integrated is a 3.3V, 5-tap silicon delay line with nominal delays of 35ns (TAP 1), 70ns (TAP 2), 105ns (TAP 3), 140ns (TAP 4), and 175ns (TAP 5), operating from -40°C to +85°C in an 8-pin µMAX package. It reproduces both leading and trailing edges with equal precision and drives up to 10 74LS loads per tap, used for timing alignment in high-speed digital logic systems.
For engineers reviewing the DS1100LU-175+ datasheet, DS1100LU-175+ pinout, DS1100LU-175+ application, or DS1100LU-175+ equivalent, key selection criteria include tap delay accuracy over temperature/voltage, TTL/CMOS compatibility, low-power CMOS operation, and µMAX footprint suitability for space-constrained PCBs.
Technical Context
The DS1100LU-175+ implements a fully silicon-based delay architecture with five fixed, equally spaced output taps referenced to a single input signal. Each tap delivers deterministic propagation delay with ±4ns tolerance (for ≤40ns delays) or ±13% (for >40ns delays) across -40°C to +85°C and 3.0V–3.6V supply.
It features TTL-/CMOS-compatible input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V), 10pF typical input capacitance, and 2.0–2.5ns output rise/fall times. Power-up time is 200μs, and active current is 10mA at 1MHz with outputs open.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0V to 3.6V - ensures stable operation in 3.3V logic domains with ±0.3V margin |
| Nominal Tap Delays | 35ns / 70ns / 105ns / 140ns / 175ns - fixed, monotonic spacing enables precise multi-point timing alignment |
| Delay Tolerance | ±4ns (TAP 1–3), ±13% (TAP 4–5) over -40°C to +85°C - defines worst-case skew between taps under full environmental range |
| Output Drive | 8mA sink / -1mA source - supports direct interfacing to 74LS logic without external buffers |
| Input Capacitance | 5–10pF - minimizes loading on preceding stage and preserves signal integrity at high frequencies |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
Pinout & Package
DS1100LU-175+ is housed in an 8-pin µMAX package (outline U8+1, land pattern 90-0092), measuring 3.0mm × 3.0mm × 0.8mm with gull-wing leads. The package is RoHS-compliant (lead-free) and vapor-phase/IR solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Single-ended logic input accepting TTL/CMOS levels; triggers all five delay taps synchronously |
| 2 | TAP 2 | Second delayed output (70ns); provides intermediate timing point for signal staging or clock deskew |
| 3 | TAP 4 | Fourth delayed output (140ns); enables coarse-to-fine delay partitioning in multi-stage logic paths |
| 4 | GND | Digital ground reference for all internal circuitry and output drivers |
| 5 | TAP 5 | Fifth delayed output (175ns); longest fixed delay in the series, used for maximum latency insertion |
| 6 | TAP 3 | Third delayed output (105ns); central tap supporting symmetric delay distribution around mid-point |
| 7 | TAP 1 | First delayed output (35ns); shortest fixed delay, suitable for minimal skew correction or pulse stretching |
| 8 | VCC | +3.3V supply input; requires local 0.1μF decoupling to maintain delay stability under switching load |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay path | Eliminates hybrid or ceramic delay elements, ensuring long-term reliability and no aging drift |
| Leading- and trailing-edge matching | Enables accurate pulse-width preservation across all taps-critical for data eye alignment |
| Five equally spaced taps | Provides consistent incremental delay steps (35ns) for scalable timing calibration without interpolation |
| Low-power CMOS design | 10mA ICC at 1MHz allows integration into power-sensitive industrial control and test equipment |
| TTL-/CMOS-compatible I/O | Supports direct connection to legacy 74LS and modern 3.3V logic families without level-shifting |
Applications
| High-Speed Logic Timing Calibration | Digital Signal Deskewing |
|---|---|
Use Scenario: Aligning arrival times of parallel data lines in FPGA-to-ASIC interfaces where trace-length mismatches cause setup/hold violations. IC Role / Device Role / Timing Role: DS1100LU-175+ provides discrete, known-delay taps to compensate for interconnect skew across multiple lanes. Use Value: Enables deterministic, hardware-based deskew without FPGA logic resources or PLL-based solutions-reducing latency and jitter. | Use Scenario: Correcting phase misalignment between clock and data signals in high-speed serial link receivers before sampling. IC Role / Device Role / Timing Role: DS1100LU-175+ inserts calibrated delay on either clock or data path to center the data eye in the sampling window. Use Value: Improves bit-error rate by maximizing sampling margin; avoids need for programmable delay ICs with higher cost and complexity. |
| Pulse Width Extension | Test Equipment Signal Generation |
Use Scenario: Extending narrow trigger pulses from microcontrollers or sensors to meet minimum width requirements of downstream logic or analog circuits. IC Role / Device Role / Timing Role: DS1100LU-175+ replicates the input pulse at TAP 5 (175ns) while preserving edge fidelity for clean, jitter-free extension. Use Value: Delivers predictable, temperature-stable pulse stretching without RC networks prone to drift or component tolerance stacking. | Use Scenario: Generating precisely timed stimulus waveforms in automated test equipment (ATE) for validating timing margins of digital ICs. IC Role / Device Role / Timing Role: DS1100LU-175+ serves as a fixed-delay reference generator, feeding multiple synchronized but offset signals to DUT pins. Use Value: Provides traceable, repeatable delay offsets (35–175ns) essential for parametric timing test coverage and production binning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1100LZ-175+ | Same electrical specs and delay values, but in 8-pin SO (150-mil) package instead of µMAX | Requires larger PCB area; better thermal dissipation and hand-solderability | Select DS1100LZ-175+ when board layout permits SO footprint and thermal management is prioritized over size |
| ON Semiconductor MC100EP195DG | 5-tap ECL delay line with 0.35ns resolution, 3.3V supply, but requires negative VEE and differential inputs | Designed for ultra-high-speed telecom/datacom; incompatible with single-ended TTL/CMOS systems | Select MC100EP195DG only for ECL environments requiring sub-nanosecond granularity and higher speed than DS1100LU-175+ |
Compared with DS1100LU-175+, DS1100LZ-175+ offers identical timing performance in a larger, more manufacturable package, while MC100EP195DG targets fundamentally different signaling standards and precision tiers-making DS1100LU-175+ the optimal choice for compact, single-supply, TTL/CMOS-aligned delay needs.
Availability
DS1100LU-175+ is available at Aetrix Electronics and suitable for high-speed logic timing calibration, digital signal deskewing, and pulse width extension requiring stable component supply across industrial temperature ranges and RoHS-compliant manufacturing.
Supply support for DS1100LU-175+ 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, with emphasis on reliability and integration.
The DS1100L series was developed as an economy-grade, all-silicon replacement for hybrid delay lines-targeting cost-sensitive, space-constrained digital systems needing deterministic, low-jitter fixed delays.
FAQ
What is the nominal delay value for each tap of the DS1100LU-175+?
The DS1100LU-175+ provides five fixed, equally spaced delays: TAP 1 = 35ns, TAP 2 = 70ns, TAP 3 = 105ns, TAP 4 = 140ns, and TAP 5 = 175ns. These values are specified at +25°C and VCC = 3.3V, with tolerances tightened for TAP 1–3 (±4ns) and expressed as ±13% for TAP 4–5 across the full -40°C to +85°C range. DS1100LU-175+ maintains monotonic delay behavior-no tap accelerates relative to another under voltage or temperature variation.
Is the DS1100LU-175+ compatible with 5V logic systems?
No, the DS1100LU-175+ is strictly a 3.3V device, characterized for operation between 3.0V and 3.6V. Its input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) and output drive capability are optimized for 3.3V TTL/CMOS logic. Applying 5V to VCC exceeds the absolute maximum rating (+6.0V on any pin) but risks permanent damage. For 5V systems, consider legacy DS1100 variants-not DS1100LU-175+.
Does the DS1100LU-175+ require external decoupling capacitors?
Yes, DS1100LU-175+ requires a 0.1μF ceramic capacitor placed as close as possible to the VCC and GND pins. This decoupling stabilizes the internal delay path against supply noise generated by simultaneous output switching, especially critical when driving multiple 74LS loads. Without it, delay variation and increased jitter may occur, degrading timing accuracy beyond datasheet specifications.
Can the DS1100LU-175+ reproduce pulse width accurately?
Yes, DS1100LU-175+ is specifically designed to preserve pulse width by matching leading- and trailing-edge delays within ±4ns (TAP 1–3) or ±13% (TAP 4–5). This edge-matching ensures that both tPLH and tPHL are tracked closely across temperature and voltage, making DS1100LU-175+ suitable for applications like pulse stretching and data eye alignment where duty cycle integrity matters.
What is the maximum input frequency supported by the DS1100LU-175+?
The DS1100LU-175+ is tested and specified up to 1MHz input frequency, with ICC = 10mA measured at that rate. Higher frequencies increase supply current and may degrade delay accuracy due to layout- and decoupling-sensitive effects. While functional operation beyond 1MHz is possible, the datasheet does not guarantee timing performance above this frequency-designers should validate DS1100LU-175+ behavior empirically in their specific application context.
DS1100LU-175+ 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:
- 35ns
- Tap Increment:
- 35 ns
- Available Total Delays:
- 175ns
- 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-175+ FAQ
1.How can I place an order for DS1100LU-175+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1100LU-175+ 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-175+ reliable?
The price and inventory of DS1100LU-175+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1100LU-175+ is usually 5 days.
3.What payment methods are accepted for DS1100LU-175+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1100LU-175+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1100LU-175+?
DS1100LU-175+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1100LU-175+ 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-175+?
For technical support, including DS1100LU-175+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1100LU-175+ requirements.
6.How does Aetrix verify that DS1100LU-175+ is sourced from the original manufacturer or authorized distributors?
All DS1100LU-175+ 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-175+ meets industry standards.
7.What is the process for return or replacement of DS1100LU-175+?
All DS1100LU-175+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1100LU-175+, 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-175+ part is unused and in its original packaging.
Return procedure for DS1100LU-175+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1100LU-175+ Tags

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