Analog Devices Inc./Maxim Integrated DS1135LU-300/T&R
- Part No.:
- DS1135LU-300/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1135LU-300/T&R.pdf
- Description:
- IC DELAY LINE 300NS 8UMAX
- Quantity:
- Payment:

- Shipping:

Inventory:4,107
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1135LU-300/T&R from Maxim Integrated is a 3V, 3-in-1 high-speed all-silicon delay line delivering precise 30 ns propagation delay per output (tPLH/tPHL), ±1.5 ns initial tolerance, and ±5.0 ns total tolerance over -40°C to +85°C with 2.7V–3.6V supply. It features independent buffered delays on three channels, leading/trailing edge symmetry preservation, and is housed in an 8-pin SOIC (150-mil) package for digital timing alignment in FPGA clock domain crossing.
For engineers reviewing the DS1135LU-300/T&R datasheet, DS1135LU-300/T&R pinout, DS1135LU-300/T&R application, or DS1135LU-300/T&R equivalent, this device serves as a RoHS-compliant, tape-and-reel packaged replacement for DS1033 in high-reliability 3V logic timing systems requiring sub-nanosecond edge fidelity and industrial temperature stability.
Technical Context
The DS1135LU-300/T&R implements three independent CMOS-buffered delay paths with matched tPLH and tPHL characteristics, each fixed at 30 ns nominal. Its all-silicon architecture eliminates quartz aging and thermal hysteresis, enabling stable delay performance across voltage (2.7V–3.6V) and temperature (-40°C to +85°C).
Input-to-output delay is measured at the 1.5V threshold with 50Ω source impedance and 15pF load; rise/fall times are specified at ≤2.5 ns. Power-up time is 1 ms, and active current draw is 10 mA at 3.6V with 1 µs period input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay per output | 30 ns (tPLH/tPHL), fixed and matched across all three channels |
| Initial delay tolerance | ±1.5 ns at +25°C, VCC = 3.3V - sets baseline timing margin for board-level calibration |
| Tolerance over temp/volt | ±5.0 ns from -40°C to +85°C, 2.7V–3.6V - defines worst-case skew budget in industrial environments |
| Supply voltage range | 2.7V to 3.6V - compatible with modern 3V logic families and LDO-regulated systems |
| Output rise/fall time | ≤2.5 ns (20%–80%) - ensures clean edge integrity into 15pF loads without added termination |
| Active supply current | 10 mA at VCC = 3.6V, 1 µs period - enables low-power multi-channel delay in battery-adjacent subsystems |
Pinout & Package
DS1135LU-300/T&R is packaged in an 8-pin SOIC (150-mil) with standard gull-wing leads, RoHS-compliant (lead-free) finish, and vapor-phase/IR-reflow solderable construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2, IN3 | Dedicated input signals for each delay channel | Accept 3.0V logic-high / 0.0V logic-low pulses; VIH ≥ 2.0V, VIL ≤ 0.8V |
| OUT1, OUT2, OUT3 | Buffered delayed outputs (30 ns) | Drive one 74F04-equivalent load; VOH ≥ 2.0V at -1mA, VOL ≤ 0.4V at 8mA |
| VCC | +3V power supply | Must be decoupled locally; operates from 2.7V–3.6V; 10 mA typical active draw |
| GND | Signal and power ground reference | Common return for inputs, outputs, and supply; critical for delay consistency and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay architecture | Eliminates quartz aging, thermal hysteresis, and mechanical shock sensitivity vs. crystal-based solutions |
| Precision edge symmetry | Matched tPLH/tPHL preserves input pulse duty cycle - essential for clock domain synchronization |
| Industrial temperature support | Guaranteed 30 ns delay operation from -40°C to +85°C - suitable for outdoor and factory-floor deployments |
| 3-in-1 integration | Three independent delay paths in single 8-pin SOIC - reduces PCB area and interconnect skew vs. discrete solutions |
Applications
| High-Speed FPGA Clock Alignment | Digital Signal Sampling Synchronization |
|---|---|
Use Scenario: Aligning multiple clock domains between FPGA fabric and external ADC/DAC interfaces where setup/hold margins are tight. IC Role / Device Role / Timing Role: Provides deterministic, matched 30 ns delay on three parallel clock or strobe lines to compensate for trace-length mismatch. Use Value: Enables reliable capture of 100+ MSPS data streams without metastability, using only one compact IC instead of three discrete delay elements. | Use Scenario: Synchronizing sample-and-hold triggers across distributed sensor nodes in industrial process monitoring. IC Role / Device Role / Timing Role: Delays trigger edges identically across three sensor acquisition channels to ensure simultaneous sampling within <1 ns jitter. Use Value: Achieves coherent multi-channel waveform reconstruction with no added software compensation or calibration overhead. |
| Logic-Level Pulse Width Adjustment | Legacy System Timing Refurbishment |
Use Scenario: Extending narrow enable pulses in microcontroller-peripheral handshaking to meet minimum setup time requirements. IC Role / Device Role / Timing Role: Applies identical 30 ns delay to three control signals (e.g., CS#, WR#, RD#) to widen effective pulse width while preserving relative timing. Use Value: Resolves timing violations in legacy 3V bus interfaces without modifying firmware or adding discrete RC networks. | Use Scenario: Replacing obsolete DS1033 delay lines in field-deployed telecom line cards requiring long-term component continuity. IC Role / Device Role / Timing Role: Drop-in functional replacement with same pinout, 30 ns delay, and improved temperature stability over original part. Use Value: Eliminates obsolescence risk while enhancing reliability in uncooled chassis environments operating up to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-in-1 silicon delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1135LZ-30+ | Same die, identical 30 ns delay and SOIC-8 package; differs only in tape-and-reel packaging code (no 'U' suffix) and RoHS marking convention | No functional difference; used interchangeably in new designs where packaging format is unspecified | Select DS1135LU-300/T&R when explicit tape-and-reel delivery and Maxim's standard U-suffix logistics are required |
| DS1035Z-30+ | 5V-compatible version (4.5V–5.5V supply); same 30 ns delay but higher ICC (15 mA), slower rise/fall (≤3.5 ns), and commercial-temp only (0°C–70°C) | Limited to 5V systems and benign environments; not suitable for industrial 3V designs | Choose only if migrating from legacy 5V DS1035-based boards and voltage scaling is impractical |
Compared with DS1135LZ-30+ and DS1035Z-30+, the DS1135LU-300/T&R uniquely combines industrial temperature range, 3V operation, and tape-and-reel logistics-making it the sole option for new 3V embedded systems requiring guaranteed long-term availability and automated assembly compatibility.
Availability
DS1135LU-300/T&R is available at Aetrix Electronics and suitable for high-speed FPGA clock alignment, digital signal sampling synchronization, and legacy system timing refurbishment requiring stable component supply across extended temperature ranges and automated SMT production.
Supply support for DS1135LU-300/T&R 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, automotive, and communications infrastructure.
The DS1135L series was developed to replace aging quartz and RC-based delay solutions with robust, temperature-stable all-silicon alternatives for 3V digital timing-critical applications.
FAQ
What is the exact delay value and tolerance of DS1135LU-300/T&R?
The DS1135LU-300/T&R provides a nominal 30 ns propagation delay (tPLH and tPHL) on each of its three outputs. Initial tolerance is ±1.5 ns at +25°C and 3.3V. Over the full industrial temperature range (-40°C to +85°C) and supply voltage range (2.7V–3.6V), total delay variation is guaranteed within ±5.0 ns - confirmed in Table 1 of the official Maxim datasheet.
Is DS1135LU-300/T&R pin-compatible with DS1033?
Yes, DS1135LU-300/T&R is a recommended functional replacement for DS1033 and shares the same 8-pin SOIC (150-mil) footprint and pin assignment (IN1–IN3, OUT1–OUT3, VCC, GND). However, DS1135LU-300/T&R operates at 3V and offers tighter delay tolerance and broader temperature support than the original 5V DS1033.
Does DS1135LU-300/T&R require external components for basic operation?
No, DS1135LU-300/T&R requires only local VCC decoupling (e.g., 0.1 µF ceramic capacitor near the VCC pin) and proper grounding. No external resistors, capacitors, or trimming components are needed - the 30 ns delay is factory-fixed and all-silicon, eliminating calibration or drift concerns inherent in RC-based delay lines.
What is the maximum input frequency supported by DS1135LU-300/T&R?
The DS1135LU-300/T&R supports input pulse periods down to 2× the delay value (i.e., minimum 60 ns period, or ~16.7 MHz fundamental). Input pulse width must be ≥100% of the 30 ns delay (≥30 ns), and rise/fall times must be ≤3.0 ns (20%–80%). These constraints ensure accurate edge-triggered delay measurement per Maxim's test conditions.
Is DS1135LU-300/T&R RoHS-compliant and lead-free?
Yes, DS1135LU-300/T&R is RoHS-compliant and lead-free, indicated by the "+" suffix in its full ordering designation. It meets JEDEC J-STD-020 reflow standards with peak temperature up to +260°C and is qualified for vapor-phase and IR reflow soldering - consistent with Maxim's standard green packaging policy.
DS1135LU-300/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Taps/Steps:
- -
- Function:
- Multiple, NonProgrammable
- Delay to 1st Tap:
- 300ns
- Tap Increment:
- -
- Available Total Delays:
- 300ns
- 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-300/T&R FAQ
1.How can I place an order for DS1135LU-300/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1135LU-300/T&R 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-300/T&R reliable?
The price and inventory of DS1135LU-300/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1135LU-300/T&R is usually 5 days.
3.What payment methods are accepted for DS1135LU-300/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1135LU-300/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1135LU-300/T&R?
DS1135LU-300/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1135LU-300/T&R 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-300/T&R?
For technical support, including DS1135LU-300/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1135LU-300/T&R requirements.
6.How does Aetrix verify that DS1135LU-300/T&R is sourced from the original manufacturer or authorized distributors?
All DS1135LU-300/T&R 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-300/T&R meets industry standards.
7.What is the process for return or replacement of DS1135LU-300/T&R?
All DS1135LU-300/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1135LU-300/T&R, 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-300/T&R part is unused and in its original packaging.
Return procedure for DS1135LU-300/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1135LU-300/T&R Tags

-
LTC6994CS6-1#TRMPBF
Analog Devices Inc.

-
LTC6994CDCB-1#TRMPBF
Analog Devices Inc.

-
LTC6994IS6-1#TRMPBF
Analog Devices Inc.

-
LTC6994IS6-1#TRPBF
Analog Devices Inc.

-
LTC6994IDCB-1#TRMPBF
Analog Devices Inc.

-
LTC6994IS6-2#TRMPBF
Analog Devices Inc.

-
LTC6994HS6-1#TRPBF
Analog Devices Inc.

-
LTC6994HS6-1#TRMPBF
Analog Devices Inc.

-
LTC6994HS6-2#TRMPBF
Analog Devices Inc.

-
LTC6994HDCB-2#TRMPBF
Analog Devices Inc.

-
LTC6994HDCB-1#TRMPBF
Analog Devices Inc.

-
DS1124U-25+T
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

