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Analog Devices Inc./Maxim Integrated DS1135LU-15
- Part No.:
- DS1135LU-15
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1135LU-15.pdf
- Description:
- IC DELAY LINE 15NS 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,482
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Product details
Overview
DS1135LU-15 from Maxim Integrated is a 3V, 3-in-1 high-speed silicon delay line delivering precise 15 ns propagation delays (tPLH/tPHL) across all three independent buffered outputs, with ±1.0 ns initial tolerance and ±2.5 ns tolerance over -40°C to +85°C, used in high-speed digital timing alignment for FPGA clock deskew and logic synchronization.
For engineers reviewing the DS1135LU-15 datasheet, DS1135LU-15 pinout, DS1135LU-15 application, or DS1135LU-15 equivalent, key selection factors include guaranteed leading/trailing edge symmetry, 2.7–3.6 V supply operation, sub-3 ns output rise/fall time, and SO-8 (150-mil) package compatibility with industrial temperature requirements.
Technical Context
The DS1135LU-15 implements three fully independent, logic-buffered delay paths in a single monolithic silicon IC, each with matched tPLH and tPHL values of 15 ns under nominal conditions (25°C, 3.3 V). Its all-silicon architecture eliminates quartz-based drift and enables stable performance across voltage (2.7–3.6 V) and temperature (-40°C to +85°C).
It preserves input signal symmetry via precision edge alignment-critical for maintaining duty cycle integrity in high-speed clock distribution. The device features TTL/CMOS-compatible inputs and outputs, supports 100% of delay-value minimum pulse width, and achieves <3 ns output transition times with 15 pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay per output | 15 ns (tPLH/tPHL), matched across all three channels for synchronous signal alignment |
| Initial delay tolerance | ±1.0 ns at 25°C/3.3 V - ensures tight timing budget margin in first-pass designs |
| Tolerance over temp/volt | ±2.5 ns (-40°C to +85°C, 2.7–3.6 V) - guarantees deterministic latency in harsh environments |
| Supply voltage range | 2.7 V to 3.6 V - compatible with modern 3V logic families and low-power systems |
| Output rise/fall time | 2.0–2.5 ns (15 pF load) - supports >300 MHz signal edges without distortion |
| Operating temperature | -40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
Pinout & Package
DS1135LU-15 is housed in an 8-pin SOIC package (150-mil width, package code S8+2, outline 21-0041), RoHS-compliant and compatible with vapor-phase and IR reflow soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2, IN3 | Digital input signals | Three independent TTL/CMOS-compatible inputs accepting 0.0–3.0 V pulses; each drives one delay path |
| OUT1, OUT2, OUT3 | Buffered delayed outputs | Three logic-buffered outputs delivering identical 15 ns delay with matched edge timing |
| VCC | Positive supply | +3V supply pin (2.7–3.6 V); powers all three delay paths and buffers |
| GND | Ground reference | Common return for inputs, outputs, and internal circuitry; required for noise immunity and timing stability |
Key Features
| Feature | Design Value |
|---|---|
| Precision leading/trailing edge delay | Identical tPLH and tPHL (15 ns) preserves input duty cycle and minimizes jitter accumulation in cascaded logic |
| All-silicon construction | Eliminates quartz aging, shock sensitivity, and frequency drift-ideal for long-life industrial deployments |
| Three independent buffered delays | Enables parallel timing correction of multiple signal paths without cross-talk or loading interaction |
| Industrial temperature support | Guaranteed 15 ns delay performance across -40°C to +85°C-no derating or recalibration needed |
Applications
| High-Speed FPGA Clock Deskew | Logic-Level Signal Synchronization |
|---|---|
Use Scenario: Aligning multiple clock domains between FPGA I/O banks to meet setup/hold timing across PCB traces of unequal length. IC Role / Device Role / Timing Role: DS1135LU-15 provides deterministic, matched 15 ns delays on three independent clock paths to compensate for inter-bank skew. Use Value: Eliminates need for programmable delay blocks or external PLLs-reduces FPGA resource usage and simplifies timing closure. | Use Scenario: Synchronizing asynchronous control signals (e.g., reset, enable, latch strobes) across multi-chip digital subsystems. IC Role / Device Role / Timing Role: DS1135LU-15 delivers identical, edge-accurate delays to three critical control lines, ensuring simultaneous assertion/deassertion. Use Value: Prevents metastability and race conditions in state machines by guaranteeing sub-3 ns inter-output skew. |
| Industrial Bus Timing Calibration | Test Equipment Pulse Delay Generation |
Use Scenario: Compensating for propagation delay mismatches in RS-485 or CAN FD transceiver timing paths within motor drive controllers. IC Role / Device Role / Timing Role: DS1135LU-15 inserts calibrated 15 ns delay into transmit/receive enable paths to align driver output with bus arbitration windows. Use Value: Ensures compliance with ISO 11898-2 timing margins without custom PCB trace tuning. | Use Scenario: Generating precisely timed stimulus pulses for automated test equipment (ATE) channel calibration and jitter analysis. IC Role / Device Role / Timing Role: DS1135LU-15 acts as a fixed, low-jitter delay element in pulse generator front-ends, feeding synchronized triggers to DUT inputs. Use Value: Provides repeatable, temperature-stable delay (±2.5 ns) without software-controlled DACs or analog delay lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1135LZ-15+ | Same die, identical 15 ns delay specs, but uses standard SO-8 (150-mil) with lead-free plating; DS1135LU-15 is Maxim's legacy marking variant | No functional difference; both qualified for industrial temp and 3V operation | Select DS1135LZ-15+ for new designs requiring documented RoHS compliance and current Maxim ordering codes |
| MAX9601EUA+ | Single-channel, 15 ns delay; no multi-output capability; higher ICC (15 mA vs. 10 mA); same SO-8 package | Suitable only when only one delay path is needed; lacks parallel 3-output synchronization | Choose MAX9601EUA+ if board space or BOM count must be minimized and multi-path alignment is unnecessary |
Compared with DS1135LU-15, DS1135LZ-15+ offers identical timing performance with updated packaging documentation, while MAX9601EUA+ trades triple-output synchronization for lower component count in single-path applications-making DS1135LU-15 optimal for deterministic multi-signal deskew where inter-channel skew must remain below 300 ps.
Availability
DS1135LU-15 is available at Aetrix Electronics and suitable for high-speed FPGA interfacing, industrial bus timing calibration, and automated test equipment requiring stable component supply with guaranteed industrial temperature operation and precise fixed delay.
Supply support for DS1135LU-15 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 DS1135L series was developed as a low-power, 3V-compatible replacement for legacy DS1033 delay lines-targeting high-reliability, fixed-latency signal alignment in space-constrained digital systems.
FAQ
What is the exact delay value and tolerance of DS1135LU-15?
The DS1135LU-15 delivers a nominal 15 ns propagation delay (tPLH and tPHL) on each of its three outputs. Initial tolerance is ±1.0 ns at 25°C and 3.3 V. Over the full industrial temperature range (-40°C to +85°C) and supply voltage (2.7–3.6 V), delay tolerance is ±2.5 ns-guaranteed by Maxim's characterization data.
Is DS1135LU-15 pin-compatible with DS1033 or other legacy delay lines?
No, DS1135LU-15 is not pin-compatible with DS1033. It uses an 8-pin SOIC package with three inputs and three outputs plus VCC and GND, whereas DS1033 is a 14-pin DIP with different pinout and timing architecture. DS1135LU-15 is explicitly positioned as a functional replacement-not a drop-in substitute-and requires PCB layout revision.
Does DS1135LU-15 support both rising and falling edge delays equally?
Yes, DS1135LU-15 provides identical 15 ns delay for both rising (tPLH) and falling (tPHL) edges on all three outputs. This leading/trailing edge precision preserves input signal symmetry and duty cycle integrity-critical for clock distribution and high-speed logic interfacing.
What is the maximum operating frequency supported by DS1135LU-15?
DS1135LU-15 does not specify a maximum frequency directly, but its AC characteristics require input pulse width (tWI) to be ≥100% of the delay value (i.e., ≥15 ns). With 2.5 ns typical output rise/fall time and 15 pF load, it reliably supports input periods down to ~50 ns-enabling use with signals up to ~20 MHz fundamental frequency and harmonics beyond 300 MHz.
Can DS1135LU-15 operate from a 2.5V supply?
No, DS1135LU-15 is specified only for 2.7 V to 3.6 V operation. At 2.5 V, timing parameters-including delay accuracy and output drive strength-are not guaranteed. The DC electrical characteristics table explicitly defines VCC min as 2.7 V, and operation below this violates the device's validated operating conditions.
DS1135LU-15 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:
- Obsolete
- Number of Taps/Steps:
- -
- Function:
- Multiple, NonProgrammable
- Delay to 1st Tap:
- 15ns
- Tap Increment:
- -
- Available Total Delays:
- 15ns
- Number of Independent Delays:
- 3
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1135LU-15 FAQ
1.How can I place an order for DS1135LU-15 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1135LU-15 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 DS1135LU-15 reliable?
The price and inventory of DS1135LU-15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1135LU-15 is usually 5 days.
3.What payment methods are accepted for DS1135LU-15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1135LU-15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1135LU-15?
DS1135LU-15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1135LU-15 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 DS1135LU-15?
For technical support, including DS1135LU-15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1135LU-15 requirements.
6.How does Aetrix verify that DS1135LU-15 is sourced from the original manufacturer or authorized distributors?
All DS1135LU-15 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 DS1135LU-15 meets industry standards.
7.What is the process for return or replacement of DS1135LU-15?
All DS1135LU-15 units undergo pre-shipment inspection (PSI). If there is an issue with DS1135LU-15, 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 DS1135LU-15 part is unused and in its original packaging.
Return procedure for DS1135LU-15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1135LU-15 Tags
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DS1124U-25+T
Analog Devices Inc./Maxim Integrated
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