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Analog Devices Inc./Maxim Integrated DS1000C-703/T&R
- Part No.:
- DS1000C-703/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1000C-703/T&R.pdf
- Description:
- IC DELAY LINE 5TAP 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,500
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Product details
Overview
DS1000C-703/T&R from Dallas Semiconductor (now Maxim Integrated) is a 5-tap all-silicon delay line with nominal delays of 70 ns (TAP 1), 140 ns (TAP 2), 210 ns (TAP 3), 280 ns (TAP 4), and 350 ns (TAP 5), ±5% or ±2 ns tolerance, TTL/CMOS-compatible, operating at 5 V, and used in precision timing alignment for digital test equipment and high-speed logic synchronization.
For engineers reviewing the DS1000C-703/T&R datasheet, DS1000C-703/T&R pinout, DS1000C-703/T&R application, or DS1000C-703/T&R equivalent, key selection considerations include tap delay accuracy, edge fidelity on both rising/falling transitions, drive capability (10 × 74LS loads per tap), temperature stability (0°C to 70°C), and compatibility with standard 14-pin DIP layouts originally designed for hybrid delay lines.
Technical Context
The DS1000C-703/T&R implements fixed, monotonic time delays across five equally spaced taps using all-silicon CMOS delay elements-no external components required. Each tap reproduces both leading and trailing edges with matched tPLH and tPHL values, and delay variation is correlated across taps under voltage or temperature shifts.
It operates from a single 5.0 V ±5% supply, draws 35–75 mA active current depending on frequency and delay setting, and maintains functionality with input pulse widths as low as 20% of TAP 5 delay. Input and output logic levels are fully compatible with TTL and CMOS families without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TAP 1 Delay | 70 ns nominal; ±5% or ±2 ns tolerance - enables precise sub-cycle alignment in 14 MHz+ clock domains |
| TAP 5 Delay | 350 ns nominal; same tolerance - supports multi-stage pipeline synchronization up to ~2.8 MHz max input rate |
| Supply Voltage | 4.75 V to 5.25 V - ensures stable operation across industrial-grade 5 V rails with typical 4% delay shift over range |
| Output Drive | 12 mA sink / –1 mA source - directly drives 10 × 74LS loads without buffer amplification |
| Input Capacitance | 5–10 pF - minimizes loading on preceding stage and preserves signal integrity in high-speed routing |
| Operating Temp | 0°C to 70°C - validated for commercial and industrial control applications without derating |
| Edge Accuracy | tPLH = tPHL within tolerance - eliminates duty cycle distortion when retiming clock or data signals |
Pinout & Package
DS1000C-703/T&R is supplied in a 14-pin plastic DIP (300-mil width), pin-compatible with legacy hybrid delay lines and optimized for through-hole prototyping or production PCBs requiring mechanical robustness and thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Single-ended logic input; accepts TTL/CMOS-compatible pulses with ≤3 ns rise/fall time |
| 2–3, 6, 9–11 | NC | No internal connection; must remain unconnected to avoid parasitic coupling or latch-up risk |
| 4 | TAP 2 | Second delay output (140 ns); electrically identical to other taps with full 12 mA sink capability |
| 5 | TAP 4 | Fourth delay output (280 ns); shares same timing correlation and load drive specs as TAP 2 |
| 7 | GND | Analog/digital ground reference; requires low-impedance local bypassing near VCC pin |
| 12 | TAP 5 | Fifth delay output (350 ns); longest delay tap; defines maximum usable input period (≥1 µs) |
| 13 | TAP 3 | Third delay output (210 ns); center tap; exhibits lowest cumulative jitter in multi-tap interpolation schemes |
| 14 | TAP 1 | First delay output (70 ns); shortest delay; sets minimum measurable propagation offset |
| 8 | VCC | +5 V power supply; requires 0.1 µF ceramic bypass capacitor placed ≤5 mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon construction | Eliminates aging, moisture sensitivity, and parameter drift inherent in hybrid thick-film delay lines |
| Monotonic tap delay correlation | Ensures consistent relative timing shift across all taps under temperature or supply variation - critical for skew cancellation |
| Matched tPLH/tPHL | Maintains input duty cycle at all outputs - avoids pulse-width distortion in clock forwarding or strobe generation |
| 14-pin DIP hybrid pinout | Enables drop-in replacement of obsolete hybrid delay modules without PCB redesign or footprint change |
| Wave/solder-compatible packaging | Supports automated assembly using vapor phase, IR reflow, or wave soldering - no special handling required |
Applications
| Digital Test Equipment Timing Calibration | High-Speed Logic Signal Retiming |
|---|---|
Use Scenario: Calibrating time interval analyzers and sampling oscilloscopes by injecting known-delay reference pulses into measurement channels. IC Role / Device Role / Timing Role: Precision fixed-delay generator providing traceable, repeatable offsets between trigger and sample events. Use Value: Achieves ±2 ns absolute delay accuracy at TAP 1, enabling sub-nanosecond instrument calibration without external delay standards. | Use Scenario: Aligning asynchronous data paths between FPGA I/O banks and external memory controllers operating at different clock phases. IC Role / Device Role / Timing Role: Tap-selectable delay element inserted in clock or strobe path to compensate for board-level flight time mismatches. Use Value: Five discrete, factory-trimmed delays (70–350 ns) allow fine-grained deskew without custom layout or programmable logic overhead. |
| Industrial PLC Input Synchronization | Digital Communications Pulse Shaping |
Use Scenario: Synchronizing multiple isolated sensor inputs (e.g., encoder quadrature A/B) before feeding into a real-time motion controller. IC Role / Device Role / Timing Role: Simultaneous multi-tap delay generator ensuring deterministic arrival timing of edge-triggered signals across distributed I/O modules. Use Value: Correlated delay behavior guarantees that relative timing between TAP outputs remains invariant over temperature - essential for deterministic jitter budgets. | Use Scenario: Generating controlled pulse-width-modulated (PWM) waveforms for LED dimming or motor gate drive where edge placement defines duty cycle. IC Role / Device Role / Timing Role: Fixed-delay interpolator used to create delayed copies of a master clock for edge-combining logic (e.g., XOR-based pulse shortening). Use Value: Matched tPLH/tPHL ensures symmetric rising/falling edge delays - preserving PWM duty cycle fidelity across all generated pulse widths. |
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 |
|---|---|---|---|
| DS1000C-100/T&R | Delays: 100/200/300/400/500 ns - longer base delay spacing; higher absolute tolerance (±5 ns @ TAP 5) | Better suited for lower-frequency systems (>200 ns minimum alignment requirement) and wider timing margins | Select when system timing budget exceeds 100 ns and board space allows same 14-pin DIP footprint |
| DS1000M-70/T&R | 8-pin DIP package; identical delay values (70/140/210/280/350 ns); same electrical specs but reduced pin count | Requires PCB redesign due to different pinout and missing NC pins - not pin-compatible with DS1000C-703/T&R | Choose only if board area is constrained and layout revision is acceptable; verify GND/VCC routing matches 8-pin SOIC variant constraints |
Compared with DS1000C-703/T&R, DS1000C-100/T&R offers extended delay range at the cost of coarser resolution, while DS1000M-70/T&R sacrifices pin compatibility for compactness - neither is a drop-in replacement, but both serve overlapping timing alignment functions in commercial-grade digital systems.
Availability
DS1000C-703/T&R is available at Aetrix Electronics and suitable for digital test instrumentation, industrial PLC synchronization, and high-speed logic retiming requiring stable component supply and long-term obsolescence management.
Supply support for DS1000C-703/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
Dallas Semiconductor, now part of Maxim Integrated (acquired 2001), specialized in precision analog, timing, and mixed-signal ICs for industrial, communications, and computing markets.
The DS1000 series was designed specifically to replace aging hybrid delay lines with reliable, temperature-stable, all-silicon alternatives for fixed-timing applications in test equipment and digital control systems.
FAQ
What is the exact delay value for each tap in DS1000C-703/T&R?
The DS1000C-703/T&R provides five equally spaced delays: TAP 1 = 70 ns, TAP 2 = 140 ns, TAP 3 = 210 ns, TAP 4 = 280 ns, and TAP 5 = 350 ns, all with a tolerance of ±5% or ±2 ns, whichever is greater. These values are specified at 25°C and 5.0 V supply, and remain correlated across temperature and voltage variations per the device's monotonic delay architecture.
Is DS1000C-703/T&R pin-compatible with hybrid delay line replacements?
Yes, DS1000C-703/T&R uses a standard 14-pin DIP (300-mil) package with hybrid-compatible lead configuration, allowing direct replacement of legacy hybrid delay modules without PCB modification. Pin 1 is IN, pins 4/5/12/13/14 are TAP outputs, pin 7 is GND, pin 8 is VCC, and remaining pins are NC - matching industry-standard hybrid footprints.
Can DS1000C-703/T&R drive standard TTL loads without buffering?
Yes, DS1000C-703/T&R can directly drive up to ten 74LS logic inputs per tap, with guaranteed IOL = 12 mA and IOH = –1 mA at VCC = 4.75 V. This eliminates need for external buffers in most digital interface applications, provided proper 0.1 µF local VCC bypassing and controlled-impedance routing are implemented.
Does DS1000C-703/T&R support both rising and falling edge delays with equal accuracy?
Yes, DS1000C-703/T&R delivers matched tPLH (rising edge) and tPHL (falling edge) delays across all five taps, ensuring duty cycle preservation and eliminating pulse-width distortion. This edge symmetry is explicitly characterized and guaranteed in the datasheet's AC Electrical Characteristics table.
What is the maximum input frequency supported by DS1000C-703/T&R?
The DS1000C-703/T&R supports input periods down to 4 × tWI (input pulse width), with tWI ≥ 40% of TAP 5 delay (i.e., ≥140 ns). Thus, minimum practical period is ~560 ns, corresponding to a maximum fundamental input frequency of ~1.79 MHz - though reliable operation depends on clean signal integrity and adequate decoupling.
DS1000C-703/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Taps/Steps:
- 5
- Function:
- Tapped
- Delay to 1st Tap:
- -
- Tap Increment:
- -
- Available Total Delays:
- -
- Number of Independent Delays:
- -
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DS1000C-703/T&R FAQ
1.How can I place an order for DS1000C-703/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1000C-703/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 DS1000C-703/T&R reliable?
The price and inventory of DS1000C-703/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 DS1000C-703/T&R is usually 5 days.
3.What payment methods are accepted for DS1000C-703/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1000C-703/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1000C-703/T&R?
DS1000C-703/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1000C-703/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 DS1000C-703/T&R?
For technical support, including DS1000C-703/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1000C-703/T&R requirements.
6.How does Aetrix verify that DS1000C-703/T&R is sourced from the original manufacturer or authorized distributors?
All DS1000C-703/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 DS1000C-703/T&R meets industry standards.
7.What is the process for return or replacement of DS1000C-703/T&R?
All DS1000C-703/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1000C-703/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 DS1000C-703/T&R part is unused and in its original packaging.
Return procedure for DS1000C-703/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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