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Analog Devices Inc./Maxim Integrated DS1044R-25+T&R
- Part No.:
- DS1044R-25+T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1044R-25+T&R.pdf
- Description:
- IC DELAY LINE 25NS 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
DS1044R-25+T&R from Maxim Integrated (formerly Dallas Semiconductor) is a 4-channel, all-silicon, high-speed logic delay line with nominal 25 ns per-output delay, ±2.0 ns initial tolerance and ±1.5 ns temperature/voltage drift, operating at +5 V over 0°C to 70°C. It delivers precise leading/trailing edge timing for clock skew management in high-speed digital systems including test equipment and FPGA interface synchronization.
For engineers reviewing the DS1044R-25+T&R datasheet, DS1044R-25+T&R pinout, DS1044R-25+T&R application, or DS1044R-25+T&R equivalent, this page provides verified timing specifications, SOIC-14 package details, input/output buffering capability, edge symmetry preservation, and real-world substitution guidance for synchronous logic design.
Technical Context
The DS1044R-25+T&R implements four independent buffered delay paths in a single monolithic silicon IC, each delivering identical 25 ns propagation delay (tPLH/tPHL) with matched rise/fall characteristics. Its logic-buffered outputs drive up to 10 LS-TTL loads while preserving input signal symmetry via leading and trailing edge accuracy.
Designed for +5 V operation (4.75–5.25 V), it operates across 0°C to 70°C with no external components required. Delay stability is maintained through internal compensation-no trimming or calibration needed-and all pins are compatible with vapor phase, IR, and wave soldering processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Delay | 25 ns per output (tPLH/tPHL), enabling precise clock/data alignment in high-speed interfaces |
| Initial Tolerance | ±2.0 ns at +25°C/VCC=5.0 V, defining worst-case setup/hold margin at power-on |
| Temp/Voltage Drift | ±1.5 ns over 0°C–70°C and 4.75–5.25 V, ensuring stable timing across industrial operating conditions |
| Output Drive | 12 mA sink / –1.0 mA source, sufficient to directly drive 10 LS-TTL inputs without external buffers |
| Rise/Fall Time | 2.0–2.5 ns, minimizing jitter contribution and supporting >200 MHz pulse repetition rates |
| Supply Voltage | +5 V ±5% (4.75–5.25 V), compatible with standard TTL/CMOS logic rails |
| Operating Temp | 0°C to 70°C, validated for commercial-grade embedded and instrumentation applications |
Pinout & Package
DS1044R-25+T&R is housed in a 14-pin SOIC package (150 mil width), RoHS-compliant and tape-and-reel packaged for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 8, 13 | NC | No connection - must remain unconnected to avoid parasitic coupling or latch-up risk |
| 2, 4, 5, 6 | IN1–IN4 | Four independent TTL/CMOS-compatible logic inputs, each routed to its dedicated delay path |
| 7, 9, 10, 11 | OUT1–OUT4 | Four buffered, low-skew outputs with matched tPLH/tPHL and edge symmetry |
| 12 | GND | Digital ground reference for all internal logic and delay circuitry |
| 14 | VCC | +5 V supply pin - requires local 0.1 µF ceramic decoupling adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon construction | Eliminates aging, drift, and reliability issues associated with analog RC or SAW-based delay solutions |
| Independent 4-channel buffering | Enables simultaneous delay of four separate signals without crosstalk or loading interaction |
| Leading/trailing edge precision | Maintains 50% duty cycle integrity across all outputs, critical for clock distribution and sampling windows |
| ±2.0 ns initial delay tolerance | Reduces need for board-level timing margin allocation and simplifies high-speed layout verification |
| SOIC-14 tape-and-reel packaging | Supports high-volume SMT placement with industry-standard reel dimensions and orientation marking |
Applications
| Digital Test Equipment | FPGA I/O Timing Calibration |
|---|---|
Use Scenario: Generating precisely offset trigger and strobe signals in automated test equipment for synchronized sampling of multi-channel DUTs. IC Role / Device Role / Timing Role: DS1044R-25+T&R serves as a deterministic, low-jitter delay engine for aligning acquisition clocks with stimulus edges. Use Value: Enables sub-nanosecond relative timing control between channels without FPGA logic resource consumption or PLL complexity. | Use Scenario: Compensating for PCB trace length mismatches between FPGA I/O banks and external memory or ADC interfaces. IC Role / Device Role / Timing Role: DS1044R-25+T&R provides fixed, repeatable delay on data valid or capture strobe lines to meet setup/hold timing windows. Use Value: Eliminates need for manual trace tuning or programmable delay blocks, reducing FPGA pin count and timing closure effort. |
| High-Speed Logic Prototyping | Industrial Control Signal Synchronization |
Use Scenario: Introducing controlled propagation delays during hardware validation of custom ASIC or CPLD designs to verify metastability resilience. IC Role / Device Role / Timing Role: DS1044R-25+T&R acts as a calibrated delay injection point for stress-testing asynchronous handshaking protocols. Use Value: Provides deterministic, temperature-stable delay values independent of FPGA routing or synthesis tools. | Use Scenario: Aligning multiple sensor sampling pulses in PLC-based motion control systems where encoder and analog input timing must be coordinated. IC Role / Device Role / Timing Role: DS1044R-25+T&R delivers synchronized delayed enable signals to isolated ADCs or digital I/O modules. Use Value: Ensures consistent inter-channel phase relationship across varying ambient temperatures and supply fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel fixed-delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1044-25+ (DIP) | Same die, 14-pin PDIP package; no tape-and-reel; higher thermal resistance and larger footprint | Suitable for prototyping or low-volume through-hole assembly; not compatible with automated SMT lines | Select DS1044R-25+T&R for production SMT; choose DS1044-25+ only for breadboard evaluation or legacy DIP systems. |
| MC100EP195DG | ECL-based 4-channel delay with 0.35 ns resolution, ±0.15 ns typical jitter, but requires –3.3 V / +3.3 V dual supply | Used in ultra-low-jitter RF or optical comms; incompatible with 5 V TTL logic domains without level translation | Choose MC100EP195DG only when sub-nanosecond jitter and ECL performance are mandatory; DS1044R-25+T&R remains optimal for 5 V digital systems. |
Compared with DS1044-25+ (DIP), DS1044R-25+T&R offers identical timing performance in an SMT-optimized package with automated handling support; compared with MC100EP195DG, it trades ultra-low jitter for 5 V single-supply simplicity and direct TTL compatibility.
Availability
DS1044R-25+T&R is available at Aetrix Electronics and suitable for digital test equipment, FPGA interface timing calibration, and industrial control signal synchronization requiring stable component supply and guaranteed long-term availability.
Supply support for DS1044R-25+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 (acquired by Analog Devices in 2021) is a semiconductor company specializing in precision analog, mixed-signal, and high-speed timing solutions for industrial, communications, and computing markets.
The DS1044R-25+T&R belongs to Maxim's legacy Dallas Semiconductor timing portfolio, designed specifically for deterministic, low-drift digital delay applications in commercial-grade 5 V logic systems.
FAQ
What is the nominal delay value of the DS1044R-25+T&R?
The DS1044R-25+T&R has a nominal delay of 25 ns per output (tPLH and tPHL), measured at +25°C and VCC = +5.0 V. This value is factory-trimmed and specified with ±2.0 ns initial tolerance, making it suitable for applications demanding predictable, repeatable propagation delay without software or hardware calibration.
Does the DS1044R-25+T&R support both rising and falling edge delay accuracy?
Yes, the DS1044R-25+T&R guarantees matched leading-edge (tPLH) and trailing-edge (tPHL) delay accuracy within the same ±2.0 ns initial tolerance and ±1.5 ns temperature/voltage drift. This ensures preserved duty cycle and symmetric waveform propagation-critical for clock distribution and sampling window alignment in the DS1044R-25+T&R.
Can the DS1044R-25+T&R drive standard TTL loads directly?
Yes, each output of the DS1044R-25+T&R can drive up to 10 LS-TTL loads, with IOL = 12 mA and IOH = –1.0 mA at VCC = 4.75 V. This eliminates the need for external buffer stages in most 5 V logic systems, simplifying design and reducing board area-confirmed in the DS1044R-25+T&R DC electrical characteristics table.
What is the maximum operating temperature range for the DS1044R-25+T&R?
The DS1044R-25+T&R is rated for operation from 0°C to 70°C, as specified in its absolute maximum and DC electrical characteristics sections. It maintains full timing performance-including ±1.5 ns delay drift-across this commercial temperature range, making it appropriate for enclosed instrumentation and non-extended-environment embedded systems using DS1044R-25+T&R.
Is the DS1044R-25+T&R pin-compatible with other DS1044 variants?
Yes, all DS1044 variants-including DS1044R-25+T&R, DS1044-25+, and DS1044R-10+-share identical 14-pin SOIC or DIP pinouts and terminal functions (IN1–IN4, OUT1–OUT4, VCC, GND, NC). The only differences are nominal delay value and packaging format; thus, DS1044R-25+T&R may be substituted within the same footprint when 25 ns delay is required.
DS1044R-25+T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Taps/Steps:
- -
- Function:
- Multiple, NonProgrammable
- Delay to 1st Tap:
- 25ns
- Tap Increment:
- -
- Available Total Delays:
- 25ns
- Number of Independent Delays:
- 4
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
DS1044R-25+T&R FAQ
1.How can I place an order for DS1044R-25+T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1044R-25+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 DS1044R-25+T&R reliable?
The price and inventory of DS1044R-25+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 DS1044R-25+T&R is usually 5 days.
3.What payment methods are accepted for DS1044R-25+T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1044R-25+T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1044R-25+T&R?
DS1044R-25+T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1044R-25+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 DS1044R-25+T&R?
For technical support, including DS1044R-25+T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1044R-25+T&R requirements.
6.How does Aetrix verify that DS1044R-25+T&R is sourced from the original manufacturer or authorized distributors?
All DS1044R-25+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 DS1044R-25+T&R meets industry standards.
7.What is the process for return or replacement of DS1044R-25+T&R?
All DS1044R-25+T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1044R-25+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 DS1044R-25+T&R part is unused and in its original packaging.
Return procedure for DS1044R-25+T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1044R-25+T&R Tags
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