Analog Devices Inc./Maxim Integrated DS1135Z-25+
- Part No.:
- DS1135Z-25+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1135Z-25+.pdf
- Description:
- IC DELAY LINE 25NS 8SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
DS1135Z-25+ from Maxim Integrated is a high-speed, all-silicon 3-channel digital delay line operating at +5V with precise 25ns per-output delay (tPLH/tPHL), ±1.5ns initial tolerance, and ±2ns tolerance over -40°C to +85°C. It delivers leading/trailing edge accuracy while preserving input signal symmetry and drives up to 10 LS TTL loads. Used in high-reliability timing alignment for test instrumentation and logic synchronization circuits.
For engineers reviewing the DS1135Z-25+ datasheet, DS1135Z-25+ pinout, DS1135Z-25+ application, or DS1135Z-25+ equivalent, key selection factors include guaranteed 25ns delay stability across voltage (4.75–5.25V) and temperature, SOIC-8 (150-mil) package compatibility, and direct replacement suitability for legacy DS1013/DS1035 designs requiring improved speed and edge fidelity.
Technical Context
The DS1135Z-25+ implements three independent buffered delay paths in a single monolithic silicon IC, each delivering identical 25ns propagation delay for both rising (tPLH) and falling (tPHL) edges. Its architecture eliminates analog drift mechanisms found in RC-based delay lines, ensuring deterministic timing behavior.
It operates exclusively at +5V (4.75–5.25V), supports 100% tap delay input pulse width, and features 2.0–2.5ns output rise/fall times (tOR/tOF) into 15pF load. Power-up stabilization completes within 100ms, and input leakage remains ≤±1.0µA across full voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay per output | 25ns (tPLH/tPHL), identical for all three channels |
| Initial delay tolerance | ±1.5ns at +25°C, VCC = 5.0V - sets baseline timing margin for system calibration |
| Tolerance over temp/volt | ±2ns from -40°C to +85°C and 4.75–5.25V - defines worst-case skew budget |
| Output drive capability | Drives ≥10 LS-TTL loads - ensures fanout without external buffering |
| Rise/fall time | 2.0–2.5ns into 15pF - maintains fast-edge integrity for high-speed logic interfaces |
| Supply voltage | +5V ±5% (4.75–5.25V) - requires stable 5V rail; not 3V-compatible |
| Power-up time | 100ms - defines minimum reset hold-off before valid delay output |
Pinout & Package
DS1135Z-25+ is housed in an 8-pin SOIC (150-mil) package, RoHS-compliant (indicated by '+' suffix), with standard 21-0041 outline and 90-0096 land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2, IN3 | Digital input signals | Three independent TTL/CMOS-compatible inputs; each routed to its dedicated delay path |
| OUT1, OUT2, OUT3 | Delayed digital outputs | Buffered, edge-accurate outputs with 25ns fixed delay relative to respective input |
| VCC | Positive supply | +5V power pin; must be decoupled locally to maintain delay stability |
| GND | Ground reference | Common return for all inputs, outputs, and internal circuitry; critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay architecture | Eliminates aging, temperature hysteresis, and voltage drift inherent in RC or analog delay solutions |
| Precise leading & trailing edge delay | Identical tPLH and tPHL ensure symmetrical waveform preservation - critical for clock/data alignment |
| Three independent buffered delays | Enables parallel timing adjustment of multiple signal paths without crosstalk or loading interaction |
| Industrial temperature range support | Guaranteed 25ns delay operation from -40°C to +85°C - suitable for embedded industrial control |
| Vapor phase, IR, and wave solder compatible | Enables use in high-volume automated PCB assembly without thermal damage risk |
Applications
| Logic Timing Alignment | Test Equipment Signal Conditioning |
|---|---|
Use Scenario: Synchronizing asynchronous data capture clocks with strobe signals in boundary-scan testers. IC Role / Device Role / Timing Role: Provides matched 25ns delay on clock and data enable paths to eliminate setup/hold violations. Use Value: Eliminates need for discrete RC networks or FPGA-based delay tuning, reducing BOM count and layout complexity. | Use Scenario: Adjusting trigger delay offsets between stimulus and measurement channels in automated test systems. IC Role / Device Role / Timing Role: Delivers deterministic, repeatable 25ns offset on reference trigger lines with sub-nanosecond edge fidelity. Use Value: Enables precise inter-channel timing correlation without software compensation or calibration drift. |
| Digital Signal Integrity Enhancement | Legacy Logic Interface Bridging |
Use Scenario: Compensating for PCB trace length mismatches in high-speed bus arbitration logic. IC Role / Device Role / Timing Role: Applies identical 25ns delay to all bus request lines to equalize propagation latency. Use Value: Prevents metastability in priority encoder inputs caused by nanosecond-scale skew. | Use Scenario: Replacing obsolete DS1013/DS1035 delay lines in fielded industrial controllers. IC Role / Device Role / Timing Role: Pin- and function-compatible drop-in upgrade offering tighter delay tolerance and improved edge accuracy. Use Value: Extends product lifecycle without PCB redesign or firmware changes. |
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-20+ | 20ns fixed delay per output; ±1.5ns initial tolerance; otherwise identical electrical and pinout specs | Suitable where 5ns shorter delay meets system timing budget; same footprint and drive strength | Select when exact 25ns is not required and earlier edge alignment improves margin |
| DS1135Z-30+ | 30ns fixed delay per output; ±1.5ns initial tolerance; otherwise identical electrical and pinout specs | Used when longer delay accommodates larger interconnect skew or added logic depth | Choose when system-level timing analysis confirms 30ns satisfies setup/hold constraints |
Compared with DS1135Z-20+ and DS1135Z-30+, the DS1135Z-25+ provides the optimal fixed delay value for applications requiring precisely 25ns channel-to-channel alignment - neither under- nor over-compensating trace or gate delays in mid-range timing-critical logic interfaces.
Availability
DS1135Z-25+ is available at Aetrix Electronics and suitable for logic timing alignment, test equipment signal conditioning, and digital signal integrity enhancement requiring stable component supply and guaranteed 25ns delay performance across industrial temperature ranges.
Supply support for DS1135Z-25+ 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 DS1135 series was developed as a high-speed, all-silicon replacement for legacy dual-inline and µSOP delay lines, targeting logic synchronization, test instrumentation, and signal integrity applications demanding deterministic, low-drift timing.
FAQ
What is the guaranteed delay accuracy of DS1135Z-25+ over its full operating temperature range?
The DS1135Z-25+ guarantees ±2ns delay tolerance over -40°C to +85°C and 4.75–5.25V supply. This includes both tPLH and tPHL measurements referenced to the 1.5V switching threshold, ensuring symmetric edge alignment. Initial tolerance at +25°C is ±1.5ns, and the device maintains this stability without recalibration.
Is DS1135Z-25+ pin-compatible with the older DS1013 or DS1035 devices?
Yes, DS1135Z-25+ is a recommended pin-compatible and functionally equivalent replacement for DS1013 and DS1035. It uses the same 8-pin SOIC (150-mil) package, identical pinout (IN1–IN3, OUT1–OUT3, VCC, GND), and TTL/CMOS-compatible I/O levels. No PCB layout changes are required for drop-in substitution.
Can DS1135Z-25+ operate from a 3.3V supply?
No, DS1135Z-25+ is specified only for +5V operation (4.75–5.25V). For 3V-compatible alternatives, refer to the DS1135L family. Attempting to power DS1135Z-25+ from 3.3V will result in undefined timing behavior, insufficient output drive, and potential functional failure.
What is the maximum capacitive load DS1135Z-25+ can drive while maintaining specified delay and edge performance?
DS1135Z-25+ is characterized for 15pF load capacitance, with rise/fall times specified as 2.0–2.5ns under that condition. Driving >15pF increases propagation delay variation and degrades edge fidelity. For heavier loads, external buffer amplification is recommended to preserve the 25ns timing accuracy and sub-3ns edge transitions.
Does DS1135Z-25+ require external passive components for stable operation?
No, DS1135Z-25+ is a fully self-contained delay line requiring only local VCC decoupling (e.g., 0.1µF ceramic capacitor near the VCC pin). Unlike RC-based solutions, it needs no external resistors or capacitors to set delay value - the 25ns timing is monolithically trimmed and factory-guaranteed.
DS1135Z-25+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Taps/Steps:
- -
- Function:
- Multiple, NonProgrammable
- Delay to 1st Tap:
- 25ns
- Tap Increment:
- -
- Available Total Delays:
- 25ns
- 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-SOIC
DS1135Z-25+ FAQ
1.How can I place an order for DS1135Z-25+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1135Z-25+ 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 DS1135Z-25+ reliable?
The price and inventory of DS1135Z-25+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1135Z-25+ is usually 5 days.
3.What payment methods are accepted for DS1135Z-25+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1135Z-25+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1135Z-25+?
DS1135Z-25+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1135Z-25+ 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 DS1135Z-25+?
For technical support, including DS1135Z-25+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1135Z-25+ requirements.
6.How does Aetrix verify that DS1135Z-25+ is sourced from the original manufacturer or authorized distributors?
All DS1135Z-25+ 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 DS1135Z-25+ meets industry standards.
7.What is the process for return or replacement of DS1135Z-25+?
All DS1135Z-25+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1135Z-25+, 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 DS1135Z-25+ part is unused and in its original packaging.
Return procedure for DS1135Z-25+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1135Z-25+ Tags

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DS1124U-25+T
Analog Devices Inc./Maxim Integrated
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