Analog Devices Inc./Maxim Integrated DS1135U-6+
- Part No.:
- DS1135U-6+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1135U-6+.pdf
- Description:
- IC DELAY LINE 6NS 8UMAX
- Quantity:
- Payment:

- Shipping:

Inventory:4,293
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Product details
Overview
DS1135U-6+ from Maxim Integrated is a high-speed, all-silicon 3-channel logic delay line operating at +5V with identical 6ns propagation delay per output (tPLH/tPHL), ±1.0ns initial tolerance, and ±1.5ns tolerance over -40°C to +85°C. It delivers precise leading/trailing edge timing for clock skew management in FPGA I/O interfaces, high-speed bus synchronization, and digital signal alignment.
For engineers reviewing the DS1135U-6+ datasheet, DS1135U-6+ pinout, DS1135U-6+ application, or DS1135U-6+ equivalent, this device serves as a recommended replacement for DS1013/DS1035 with improved temperature/voltage stability, 8-pin SOIC (150-mil) packaging, and LS-TTL load drive capability (10 loads per output).
Technical Context
The DS1135U-6+ implements three independent buffered delay paths within a single silicon die, each with matched tPLH and tPHL of 6ns under nominal conditions (VCC = 5.0V, TA = +25°C). Its all-silicon architecture eliminates quartz aging and mechanical shock sensitivity inherent in traditional delay solutions.
Each channel maintains input symmetry through precision edge preservation, supporting stable pulse-width integrity across temperature and supply voltage variations (4.75V–5.25V). The device features fast output rise/fall times (2.0–2.5ns) and requires no external components for operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay per output | 6ns (tPLH/tPHL), matched across all three channels for synchronous signal alignment |
| Initial delay tolerance | ±1.0ns at +25°C and 5.0V - enables tight setup/hold margin control without calibration |
| Temp/voltage tolerance | ±1.5ns over -40°C to +85°C and 4.75–5.25V - ensures deterministic timing in industrial environments |
| Output drive strength | 12mA sink / -1.0mA source - supports direct interface to 74F04-equivalent loads (10 LS-TTL) |
| Input capacitance | 10pF - minimizes loading on upstream drivers and preserves signal integrity |
| Power-up time | 100ms - defines minimum wait before stable delays are guaranteed after VCC application |
Pinout & Package
DS1135U-6+ is housed in an 8-pin SOIC package (150-mil width, outline 21-0041), RoHS-compliant (indicated by "+" suffix), vapor-phase, IR, and wave solder compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2, IN3 | Dedicated input terminals for three independent delay channels | Accept TTL-compatible logic signals; each drives one internal delay path without crosstalk |
| OUT1, OUT2, OUT3 | Buffered delay outputs | Deliver 6ns-delayed copies with preserved edge symmetry and 10 LS-TTL load drive capability |
| VCC | +5V power supply | Operates over 4.75–5.25V; decoupling required near pin for noise-sensitive timing performance |
| GND | Ground reference | Common return for all inputs, outputs, and internal circuitry; must be low-impedance for jitter control |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay architecture | Eliminates quartz-based drift, aging, and mechanical failure modes-ideal for long-life industrial deployments |
| Precision edge preservation | Maintains input pulse symmetry (tPLH ≈ tPHL) to prevent duty-cycle distortion in clock distribution networks |
| Three independent buffered delays | Enables parallel timing adjustment of multiple signal paths without shared resource contention or skew coupling |
| LS-TTL load compatibility | Drives up to 10 LS loads per output without external buffers-reduces BOM count and board space |
Applications
| FPGA I/O Timing Calibration | High-Speed Bus Synchronization |
|---|---|
Use Scenario: Aligning data and strobe signals between FPGA and external memory or ADC/DAC interfaces where sub-nanosecond skew must be compensated. IC Role / Device Role / Timing Role: Provides deterministic, matched 6ns delay on three parallel paths to correct PCB trace length mismatches. Use Value: Enables reliable capture at 100+ MHz without custom layout tuning or active deskew circuits. | Use Scenario: Synchronizing enable, address, and data lines across multi-drop parallel buses (e.g., legacy PCI, ISA, or custom backplanes). IC Role / Device Role / Timing Role: Introduces calibrated delay on critical control lines to meet setup/hold windows at receivers. Use Value: Eliminates need for discrete RC networks or programmable logic for bus timing alignment. |
| Digital Signal Edge Alignment | Test Equipment Pulse Shaping |
Use Scenario: Matching propagation delays of clock and data paths in high-speed serial link test fixtures or bit-error-rate testers. IC Role / Device Role / Timing Role: Delivers identical 6ns delay on three independent channels to preserve relative phase relationships. Use Value: Ensures consistent eye diagram measurements by eliminating inter-channel skew >1ns. | Use Scenario: Generating precisely timed trigger pulses for oscilloscopes, logic analyzers, or automated test systems requiring repeatable edge placement. IC Role / Device Role / Timing Role: Converts a single input pulse into three synchronized, delayed replicas with known offsets. Use Value: Replaces multiple discrete delay generators with one compact, temperature-stable component. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-channel fixed-delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1135Z-6+ | Same 6ns delay, identical SOIC-8 (150-mil) package, but Z-grade rated for -40°C to +85°C (U-grade also covers same range per datasheet) | No functional difference; Z and U denote same industrial temp grade per Maxim ordering conventions | Select DS1135Z-6+ if sourcing from legacy inventory or distributor stock with Z suffix; electrically and mechanically identical to DS1135U-6+ |
| DS1013-6+ | Legacy 6ns 3-channel delay; higher initial tolerance (±2.5ns vs. ±1.0ns) and wider temp tolerance (±3ns vs. ±1.5ns) | Lower timing precision limits use in >50MHz systems; lacks DS1135U-6+'s edge symmetry preservation | Choose only for backward compatibility in legacy designs where tighter delay specs are not required |
Compared with DS1135Z-6+, DS1135U-6+ offers identical specifications and form factor; compared with DS1013-6+, it delivers 2× tighter delay tolerance and superior edge fidelity-critical for modern high-speed digital interfaces.
Availability
DS1135U-6+ is available at Aetrix Electronics and suitable for FPGA timing calibration, industrial bus synchronization, and test equipment pulse shaping requiring stable component supply and guaranteed long-term availability.
Supply support for DS1135U-6+ 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 and mixed-signal ICs for industrial, automotive, communications, and computing applications.
The DS1135U-6+ belongs to Maxim's silicon delay line product line, engineered specifically for deterministic, low-skew timing correction in high-speed digital systems where quartz-based solutions are impractical.
FAQ
What is the operating voltage range for DS1135U-6+?
The DS1135U-6+ operates over a supply voltage range of 4.75V to 5.25V. It is specified for +5V operation only-unlike the DS1135L series, which supports 3V. Operation outside this window may result in undefined timing behavior or damage, as confirmed by Absolute Maximum Ratings (VCC ≤ +6.0V).
Does DS1135U-6+ support both rising and falling edge delays?
Yes, DS1135U-6+ provides matched propagation delays for both edges: tPLH (rising) and tPHL (falling) are each 6ns with ±1.0ns initial tolerance. This edge symmetry preserves input pulse width integrity, a key feature distinguishing it from earlier delay lines like DS1013.
What is the maximum load DS1135U-6+ can drive per output?
Each DS1135U-6+ output can drive up to 10 LS-TTL loads, equivalent to one 74F04 input gate per load. This is validated by DC electrical characteristics: low-level output current is 12mA (VOL = 0.5V), and high-level output current is -1.0mA (VOH = 4.0V) at VCC = 4.75V.
Is DS1135U-6+ pin-compatible with DS1013 or DS1035?
Yes, DS1135U-6+ uses the same 8-pin SOIC (150-mil) package and identical pin assignment (IN1–IN3, OUT1–OUT3, VCC, GND) as DS1013 and DS1035. Maxim explicitly recommends DS1135U-6+ as a drop-in replacement, with improved delay accuracy and temperature stability.
What is the power-up time specification for DS1135U-6+?
The DS1135U-6+ requires 100ms after VCC application before delivering stable, guaranteed 6ns delays at its outputs. This power-up time (tPU) is measured from VCC reaching valid operating voltage until output delays fall within datasheet tolerances, and applies across the full -40°C to +85°C temperature range.
DS1135U-6+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Taps/Steps:
- -
- Function:
- Multiple, NonProgrammable
- Delay to 1st Tap:
- 6ns
- Tap Increment:
- -
- Available Total Delays:
- 6ns
- Number of Independent Delays:
- 3
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1135U-6+ FAQ
1.How can I place an order for DS1135U-6+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1135U-6+ 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 DS1135U-6+ reliable?
The price and inventory of DS1135U-6+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1135U-6+ is usually 5 days.
3.What payment methods are accepted for DS1135U-6+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1135U-6+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1135U-6+?
DS1135U-6+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1135U-6+ 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 DS1135U-6+?
For technical support, including DS1135U-6+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1135U-6+ requirements.
6.How does Aetrix verify that DS1135U-6+ is sourced from the original manufacturer or authorized distributors?
All DS1135U-6+ 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 DS1135U-6+ meets industry standards.
7.What is the process for return or replacement of DS1135U-6+?
All DS1135U-6+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1135U-6+, 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 DS1135U-6+ part is unused and in its original packaging.
Return procedure for DS1135U-6+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1135U-6+ Tags

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Analog Devices Inc.

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Analog Devices Inc.

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Analog Devices Inc.

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