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Analog Devices Inc./Maxim Integrated DS1005S-250+
- Part No.:
- DS1005S-250+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DS1005S-250+.pdf
- Description:
- IC DELAY LINE 5TAP 250NS 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,321
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Product details
Overview
DS1005S-250+ from Analog Devices (formerly Dallas Semiconductor) is a 5-tap all-silicon delay line with fixed delays of 50 ns, 100 ns, 150 ns, 200 ns, and 250 ns at each tap, ±2 ns or ±3% tolerance, TTL/CMOS-compatible input/output, and 5.0 V ±5% supply operation. It serves as a precise timing element in digital signal alignment, clock deskew, and pulse shaping circuits.
For engineers reviewing the DS1005S-250+ datasheet, DS1005S-250+ pinout, DS1005S-250+ application, or DS1005S-250+ equivalent, key selection considerations include tap delay accuracy, leading/trailing edge matching, 74LS load drive capability (10 loads per tap), SOIC-16 package compatibility, and temperature/voltage stability across 0°C to 70°C.
Technical Context
The DS1005S-250+ implements a monolithic silicon delay structure-not RC or analog-based-ensuring deterministic, repeatable propagation delays across all five taps. Its architecture guarantees identical delay variation directionality with temperature or supply voltage changes: if TAP 1 slows, all other taps slow proportionally.
Each output reproduces the input logic level after its fixed delay, with tPLH and tPHL both specified per Table 1 and validated at 1.5 V switching threshold. Input-to-tap delay accuracy holds for both rising and falling edges within ±2 ns or ±3%, whichever is greater, under 0°C to 70°C and VCC = 5.0 V ±5%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Tap Delays | 50 ns / 100 ns / 150 ns / 200 ns / 250 ns - fixed, equally spaced, usable for multi-stage timing alignment |
| Delay Accuracy | ±2 ns or ±3%, whichever greater - ensures predictable skew control in synchronous logic paths |
| Supply Voltage | 4.75 V to 5.25 V - compatible with standard 5 V TTL/CMOS systems without regulation overhead |
| Output Drive | 10 × 74LS loads per tap - sufficient fanout for direct interface to legacy logic families |
| Operating Temp | 0°C to 70°C - suitable for commercial-grade embedded and industrial control applications |
| Input Capacitance | 5 pF to 10 pF - low loading preserves signal integrity on high-speed source lines |
| Power Consumption | 40 mA to 70 mA typical - enables use in power-constrained board-level timing functions |
Pinout & Package
DS1005S-250+ is housed in a 16-pin SOIC (300-mil width) package with 1.27 mm pitch, surface-mount compatible, and vapor-phase/reflow solderable. Pin 1 is marked by notch or dot; device is not pin-compatible with DIP variants due to different pin count and NC placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Single-ended TTL/CMOS-compatible input; accepts 0–5 V logic with 2.2 V VIH min |
| 2,3,6,8,9,10,12 | NC | No internal connection; must be left unconnected or tied to GND per layout best practice |
| 4 | TAP 2 | Second delayed output (100 ns); drives up to ten 74LS loads |
| 5 | TAP 4 | Fourth delayed output (200 ns); same electrical specs as TAP 2 |
| 7 | GND | Digital ground reference; requires low-impedance PCB plane connection |
| 11 | TAP 5 | Fifth delayed output (250 ns); full-spec output with matched edge accuracy |
| 13 | TAP 3 | Third delayed output (150 ns); maintains ±2 ns delay matching relative to TAP 2/TAP 4 |
| 14 | TAP 1 | First delayed output (50 ns); lowest latency tap, used for fine-grained timing offset |
| 15 | VCC | +5 V supply; bypassing with 0.1 µF ceramic capacitor at pin recommended |
| 16 | NC | No internal connection; no routing or termination required |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay structure | Eliminates hybrid component drift and aging; delivers stable delay over 10+ years in field operation |
| Leading and trailing edge accuracy | Enables precise pulse width preservation across all taps - critical for clock recovery and data eye alignment |
| 5-tap equal spacing | Supports uniform time-step interpolation (e.g., 50 ns steps) for digital delay compensation networks |
| TTL/CMOS compatibility | Direct interface to 74LS, 74HC, and microcontroller GPIO without level-shifting circuitry |
| Low-power CMOS design | Reduces thermal load in dense timing subsystems while maintaining 70 mA max ICC |
Applications
| Digital Clock Deskew | Pulse Width Modulation (PWM) Shaping |
|---|---|
Use Scenario: Aligning multiple clock domains in FPGA-based test equipment where inter-clock skew must remain below 3 ns. IC Role / Device Role / Timing Role: DS1005S-250+ provides calibrated, temperature-stable delays to adjust arrival times of distributed clocks before fanout buffers. Use Value: Achieves sub-3 ns skew control across 5 channels using only one DS1005S-250+, reducing BOM count vs. discrete RC networks. | Use Scenario: Generating complementary PWM signals with programmable dead-time insertion in motor gate driver boards. IC Role / Device Role / Timing Role: DS1005S-250+ taps deliver precisely stepped delays to shift rising/falling edges of control signals before XOR-based dead-time logic. Use Value: Enables 50 ns granularity dead-time tuning without microcontroller firmware changes or external DACs. |
| Logic Signal Retiming | Test Pattern Delay Calibration |
Use Scenario: Compensating for unequal trace lengths in high-speed digital bus interfaces (e.g., parallel ADC data capture). IC Role / Device Role / Timing Role: DS1005S-250+ applies matched delays to individual data lines to realign setup/hold windows at the receiver. Use Value: Restores timing margin lost to PCB routing asymmetry, eliminating need for custom-length traces or FPGA-based deskew. | Use Scenario: Calibrating automated test equipment (ATE) stimulus timing against known reference delays during probe card validation. IC Role / Device Role / Timing Role: DS1005S-250+ supplies traceable, NIST-aligned delay standards (50–250 ns in 50 ns steps) for channel-to-channel timing verification. Use Value: Replaces expensive bench delay generators with a $2.50 IC solution traceable to datasheet specs and production-tested units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 5-tap silicon delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1005-250+ | 14-pin DIP package; same delay values and electrical specs but through-hole mounting | Preferred for prototyping, manual assembly, or legacy DIP-based systems | Select DS1005-250+ when board space allows DIP footprint and hand-soldering is required |
| DS1005M-250+ | 8-pin DIP package; reduced pin count omits TAP 2 and TAP 4; only TAP 1 (50 ns), TAP 3 (150 ns), TAP 5 (250 ns) available | Suitable for minimal-tap applications requiring only coarse delay steps | Choose DS1005M-250+ only when exactly three taps suffice and 100 ns/200 ns resolution is unnecessary |
Compared with DS1005-250+ and DS1005M-250+, the DS1005S-250+ offers full 5-tap access in a compact SOIC-16 footprint ideal for high-density SMT production, while retaining identical delay accuracy, edge matching, and load drive capability.
Availability
DS1005S-250+ is available at Aetrix Electronics and suitable for digital test equipment, motor control gate drivers, FPGA timing alignment, and industrial PLC I/O modules requiring stable component supply and long-term obsolescence management.
Supply support for DS1005S-250+ 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
Analog Devices acquired Dallas Semiconductor in 2011 and maintains its precision timing product portfolio, including silicon delay lines, real-time clocks, and temperature-compensated oscillators.
The DS1005S-250+ belongs to the DS1005 family of monolithic silicon delay lines designed specifically for deterministic, low-drift digital timing correction in commercial-grade instrumentation and control systems.
FAQ
What is the maximum operating temperature range for DS1005S-250+?
The DS1005S-250+ is rated for operation from 0°C to 70°C per its DC and AC electrical specifications. While storage temperature extends to −55°C to +125°C, functional performance-including delay accuracy and output drive-is guaranteed only within the 0°C to 70°C range. Exceeding this range may cause delay shift beyond ±2 ns or ±3% tolerance, and is not supported by characterization data.
Does DS1005S-250+ support both rising and falling edge delay accuracy?
Yes, DS1005S-250+ guarantees matched delay accuracy for both edges: tPLH (rising) and tPHL (falling) are each specified per Table 1 and hold within ±2 ns or ±3%, whichever is greater. This dual-edge precision enables accurate pulse width retention across all five taps, making DS1005S-250+ suitable for applications like PWM shaping and clock deskew where duty cycle fidelity matters.
Can DS1005S-250+ drive modern CMOS logic families such as 74HC or 74AHC?
Yes, DS1005S-250+ is TTL/CMOS-compatible and can directly drive 74HC and 74AHC inputs. Its VOH ≥ 4.0 V (at IOH = −1.0 mA) and VOL ≤ 0.5 V (at IOL = 12 mA) meet or exceed 74HC thresholds. However, fanout is specified for 74LS loads (10 per tap); driving >10x 74HC inputs may require verification of capacitive loading and rise/fall time impact on delay accuracy.
Is DS1005S-250+ pin-compatible with the 14-pin DIP version DS1005-250+?
No, DS1005S-250+ is not pin-compatible with DS1005-250+. The DS1005S-250+ uses a 16-pin SOIC package with 7 NC pins and different pin assignments (e.g., TAP 2 on pin 4, TAP 4 on pin 5), whereas DS1005-250+ uses a 14-pin DIP with TAP 2 on pin 4 and TAP 4 on pin 6. PCB layout and footprint must be redesigned when switching between packages.
What is the input pulse width requirement for reliable operation of DS1005S-250+?
Per AC Electrical Characteristics, the minimum input pulse width (tWI) is specified as 40% of Tap 5's tPLH - i.e., ≥100 ns for DS1005S-250+ (250 ns × 0.4). Shorter pulses may trigger unpredictable output behavior or degraded delay accuracy. Pulse width should be verified under actual operating conditions, especially when interfacing with fast microcontroller outputs or FPGA I/O.
DS1005S-250+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Taps/Steps:
- 5
- Function:
- Nonprogrammable
- Delay to 1st Tap:
- 50ns
- Tap Increment:
- 50 ns
- Available Total Delays:
- 250ns
- Number of Independent Delays:
- 1
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DS1005S-250+ FAQ
1.How can I place an order for DS1005S-250+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1005S-250+ 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 DS1005S-250+ reliable?
The price and inventory of DS1005S-250+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1005S-250+ is usually 5 days.
3.What payment methods are accepted for DS1005S-250+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1005S-250+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1005S-250+?
DS1005S-250+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1005S-250+ 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 DS1005S-250+?
For technical support, including DS1005S-250+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1005S-250+ requirements.
6.How does Aetrix verify that DS1005S-250+ is sourced from the original manufacturer or authorized distributors?
All DS1005S-250+ 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 DS1005S-250+ meets industry standards.
7.What is the process for return or replacement of DS1005S-250+?
All DS1005S-250+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1005S-250+, 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 DS1005S-250+ part is unused and in its original packaging.
Return procedure for DS1005S-250+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1005S-250+ Tags
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