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Analog Devices Inc./Maxim Integrated DS1005-125
- Part No.:
- DS1005-125
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
DS1005-125.pdf
- Description:
- DS1005 5-TAP SILICON DELAY LINE
- Quantity:
- Payment:
- Shipping:
Inventory:5,652
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Product details
Overview
DS1005-125 from Dallas Semiconductor is a 5-tap all-silicon delay line with fixed tap delays of 25 ns, 50 ns, 75 ns, 100 ns, and 125 ns; ±2 ns or ±3% delay tolerance; TTL/CMOS-compatible input; capable of driving ten 74LS loads per tap; used in digital timing alignment, clock skew correction, and pulse shaping circuits.
For engineers reviewing the DS1005-125 datasheet, DS1005-125 pinout, DS1005-125 application, or DS1005-125 equivalent, key selection considerations include tap delay accuracy over temperature (0°C to 70°C), leading/trailing edge matching, VCC = 5.0 V ±5%, and compatibility with standard 14-pin DIP footprints.
Technical Context
The DS1005-125 implements a monolithic silicon delay structure with five equally spaced, deterministic propagation paths-no external components or trimming required. Each tap reproduces logic level with matched tPLH and tPHL delays, maintaining edge fidelity across voltage (4.75–5.25 V) and temperature (0–70°C).
Delay variation is unidirectional: all taps slow or speed together under voltage/temperature shifts, preserving inter-tap spacing. Input-to-output delay is measured at 1.5 V with 3 ns max input rise/fall time and 50 Ω source impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TAP 1 Delay | 25 ns - first fixed delay point for signal alignment or setup-time extension |
| TAP 5 Delay | 125 ns - maximum fixed delay in the series; defines total timing window span |
| Delay Tolerance | ±2 ns or ±3%, whichever greater - ensures timing margin compliance in synchronous logic |
| Supply Voltage | 4.75 V to 5.25 V - supports standard 5 V TTL/CMOS rail with ±5% regulation |
| Output Drive | 10 × 74LS loads - sufficient fanout for legacy TTL interfacing without buffering |
| Operating Temp | 0°C to 70°C - commercial-grade range suitable for industrial control and instrumentation |
| Input Capacitance | 5–10 pF - low loading enables clean edge integrity on high-speed logic inputs |
Pinout & Package
DS1005-125 is supplied in a standard 14-pin DIP (300-mil) package, pin-compatible with hybrid delay line replacements. Package dimensions conform to JEDEC MS-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Single-ended logic input; accepts TTL/CMOS levels; 5–10 pF capacitance |
| 2, 3, 6, 7, 9, 10, 11, 12 | NC | No connection; must be left floating or grounded per layout best practice |
| 4 | TAP 2 | 50 ns delayed output; matches tPLH/tPHL spec; drives up to 10 × 74LS |
| 5 | TAP 4 | 100 ns delayed output; aligned with TAP 1–5 arithmetic spacing |
| 8 | GND | Signal and power ground reference; decoupling capacitor required at VCC pin |
| 13 | TAP 5 | 125 ns delayed output; final tap in sequence; same edge accuracy as IN |
| 14 | VCC | +5 V supply; 40–70 mA active current draw; requires local 0.1 µF ceramic bypass |
| 15, 16 | N/A | Not applicable - 14-pin DIP has only pins 1–14; no pins 15/16 |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon construction | Eliminates hybrid component drift and aging; enables 100% wafer-level test and traceability |
| Leading & trailing edge accuracy | tPLH and tPHL match within tolerance - critical for pulse width preservation in data strobes |
| Fixed 5-tap architecture | No configuration overhead; deterministic latency without firmware or register programming |
| Auto-insertable DIP packaging | Standard 14-pin through-hole footprint supports legacy PCB assembly and rework |
| Low-power CMOS operation | 40–70 mA ICC at 5 V - compatible with power-constrained backplane and bus timing applications |
Applications
| Digital Test Equipment | Industrial PLC Timing |
|---|---|
Use Scenario: Synchronizing stimulus and capture channels in boundary-scan testers and logic analyzers. IC Role / Device Role / Timing Role: DS1005-125 provides calibrated, repeatable delays to align clock and data sampling windows. Use Value: Enables sub-nanosecond jitter-free alignment between multiple instrument channels without FPGA-based delay tuning. | Use Scenario: Compensating for I/O scan cycle skew in modular programmable logic controllers. IC Role / Device Role / Timing Role: DS1005-125 inserts precise, stable delays into discrete output enable paths to synchronize actuator response. Use Value: Eliminates mechanical timing variability by replacing potentiometer-based analog delay circuits with deterministic silicon delays. |
| Video Signal Processing | Legacy Bus Interface |
Use Scenario: Aligning horizontal sync and pixel clock edges in analog RGB video encoders. IC Role / Device Role / Timing Role: DS1005-125 delays HSYNC relative to pixel clock to meet setup/hold timing in DAC interfaces. Use Value: Maintains consistent video blanking intervals across temperature using matched tPLH/tPHL performance. | Use Scenario: Matching address latch and data valid timing on ISA or VME backplanes. IC Role / Device Role / Timing Role: DS1005-125 delays memory read strobe to satisfy 74LS TTL setup time requirements. Use Value: Achieves reliable 8-bit parallel bus operation at 8 MHz without custom PCB trace-length tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-tap delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1004-125 | 4-tap version (0/25/50/75/100 ns); no TAP 5 at 125 ns; identical delay tolerance and drive strength | Lacks final 125 ns tap; unsuitable where full 5-point interpolation or maximum delay is required | Select DS1005-125 when five discrete delay points spanning up to 125 ns are needed. |
| MAX9992ESE+ | Programmable 8-tap delay (1–255 ns in 1 ns steps); higher power (120 mA); SOIC-16 only | Requires SPI configuration; not drop-in; offers dynamic adjustment but adds firmware dependency | Choose DS1005-125 for zero-config, deterministic, low-power, through-hole timing in fixed-function systems. |
Compared with DS1004-125 and MAX9992ESE+, the DS1005-125 delivers a unique balance of fixed 5-tap precision, 14-pin DIP compatibility, and minimal power use-making it optimal for cost-sensitive, high-reliability timing where programmability is unnecessary.
Availability
DS1005-125 is available at Aetrix Electronics and suitable for digital test equipment, industrial PLC timing, video signal processing, and legacy bus interface applications requiring stable component supply and long-term obsolescence management.
Supply support for DS1005-125 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
Dallas Semiconductor (now part of Maxim Integrated, then Analog Devices) specialized in precision timing, memory, and mixed-signal ICs for industrial and instrumentation markets.
The DS1005 family was designed to replace aging hybrid delay lines with fully tested, temperature-stable silicon alternatives in fixed-timing applications requiring repeatable nanosecond accuracy.
FAQ
What is the exact delay value for TAP 3 on the DS1005-125?
TAP 3 on the DS1005-125 provides a fixed delay of 75 ns, as confirmed in Table 1 of the official datasheet. This value is specified for both tPLH (rising edge) and tPHL (falling edge), with tolerance of ±2 ns or ±3%, whichever is greater. The DS1005-125 maintains arithmetic spacing across all five taps, ensuring predictable timing relationships in multi-stage delay networks.
Is the DS1005-125 pin-compatible with older hybrid delay line modules?
Yes-the DS1005-125 uses a standard 14-pin DIP (300-mil) footprint with hybrid lead configuration, enabling direct replacement of legacy hybrid delay lines without PCB redesign. Pin 1 is IN, pin 4 is TAP 2, pin 5 is TAP 4, pin 8 is GND, pin 13 is TAP 5, and pin 14 is VCC. NC pins match industry-standard placement to avoid routing conflicts.
Does the DS1005-125 support operation outside the 0°C to 70°C range?
No-the DS1005-125 is rated for 0°C to 70°C operation per its Absolute Maximum Ratings and DC/AC Electrical Characteristics tables. While storage temperature extends to –55°C to +125°C, functional operation outside the 0–70°C range is not characterized or guaranteed. For extended temperature needs, Dallas offered custom variants-not the standard DS1005-125.
Can the DS1005-125 drive modern CMOS loads like 74LVC or 74AUC?
Yes-the DS1005-125 outputs meet TTL/CMOS voltage thresholds and can drive modern low-voltage CMOS families when interfaced with appropriate level-shifting or series termination. Its 12 mA IOL and –1 mA IOH are sufficient for single-load 74LVC devices; for bus applications, verify fanout against capacitive load and transition time specs in the target logic family's datasheet.
How does delay variation behave across temperature and voltage for the DS1005-125?
Delay variation in the DS1005-125 is unidirectional: all taps shift together under temperature or voltage change-e.g., if TAP 1 slows by 1 ns, TAP 5 also slows by ~1 ns. Per Note 6, inter-tap spacing remains preserved. Combined temperature (0–70°C) and voltage (4.75–5.25 V) shifts add ≤ ±1.5 ns or ±4%, whichever greater-beyond the base ±2 ns/±3% tolerance.
DS1005-125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Taps/Steps:
- 5
- Function:
- Nonprogrammable
- Delay to 1st Tap:
- 25ns
- Tap Increment:
- 25 ns
- Available Total Delays:
- 125ns
- Number of Independent Delays:
- 1
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
DS1005-125 FAQ
1.How can I place an order for DS1005-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1005-125 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 DS1005-125 reliable?
The price and inventory of DS1005-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1005-125 is usually 5 days.
3.What payment methods are accepted for DS1005-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1005-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1005-125?
DS1005-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1005-125 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 DS1005-125?
For technical support, including DS1005-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1005-125 requirements.
6.How does Aetrix verify that DS1005-125 is sourced from the original manufacturer or authorized distributors?
All DS1005-125 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 DS1005-125 meets industry standards.
7.What is the process for return or replacement of DS1005-125?
All DS1005-125 units undergo pre-shipment inspection (PSI). If there is an issue with DS1005-125, 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 DS1005-125 part is unused and in its original packaging.
Return procedure for DS1005-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1005-125 Tags
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LTC6994CS6-1#TRMPBF
Analog Devices Inc.
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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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Analog Devices Inc.
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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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Analog Devices Inc.
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Analog Devices Inc.
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DS1124U-25+T
Analog Devices Inc./Maxim Integrated
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