Analog Devices Inc./Maxim Integrated DS1100U-125+
- Part No.:
- DS1100U-125+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1100U-125+.pdf
- Description:
- IC DELAY LINE 5TAP 125NS 8UMAX
- Quantity:
- Payment:

- Shipping:

Inventory:3,970
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Product details
Overview
DS1100U-125+ from Maxim Integrated is a 5-tap silicon delay line in an 8-pin µMAX package, delivering precisely spaced delays of 25ns, 50ns, 75ns, 100ns, and 125ns at each tap under 5V operation. It reproduces both leading and trailing edges with ±4ns tolerance over –40°C to +85°C, drives up to 10 LS-TTL loads per tap, and serves in digital timing alignment, clock skew correction, and pulse-width adjustment circuits.
For engineers reviewing the DS1100U-125+ datasheet, DS1100U-125+ pinout, DS1100U-125+ application, or DS1100U-125+ equivalent, key selection criteria include tap delay accuracy across temperature, TTL/CMOS compatibility, low-power CMOS operation, and µMAX package footprint constraints for high-density PCB layouts.
Technical Context
The DS1100U-125+ implements an all-silicon delay architecture with five fixed, equally spaced delay taps referenced to a single input signal. Each tap provides deterministic propagation delay with matched rising/falling edge precision, enabling synchronous multi-point timing without external compensation.
It operates exclusively at 5V (4.75V–5.25V), supports full industrial temperature range (–40°C to +85°C), and maintains delay stability via monolithic silicon construction-eliminating hybrid or ceramic delay line drift and aging effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Tap Delays | 25ns / 50ns / 75ns / 100ns / 125ns - fixed, equally spaced delays from single input, usable for multi-stage timing alignment |
| Delay Tolerance (≤40ns) | ±4ns over –40°C to +85°C - ensures sub-nanosecond edge-matching consistency in critical setup/hold windows |
| Supply Voltage | 4.75V to 5.25V - compatible with standard 5V logic rails and decoupled power domains |
| Output Drive Capability | 12mA sink / –1mA source - sufficient to directly drive 10× 74LS loads without buffering |
| Input Capacitance | 5–10pF - minimizes loading on upstream drivers and preserves signal integrity at high frequencies |
| Power-Up Time | 200μs - defines minimum reset-to-valid-output latency after VCC stabilization |
Pinout & Package
DS1100U-125+ uses an 8-pin µMAX package (U8+1 outline, 3mm × 3mm body, 0.65mm pitch), optimized for space-constrained industrial and telecom PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | +5V supply rail - must be decoupled locally with ≥0.1μF ceramic capacitor |
| 2 | TAP 1 | First delayed output (25ns) - TTL/CMOS-compatible, active-high replica of IN |
| 3 | TAP 3 | Third delayed output (75ns) - matches TAP 1/TAP 5 edge fidelity and load drive |
| 4 | TAP 5 | Fifth delayed output (125ns) - longest fixed delay; same timing precision as earlier taps |
| 5 | IN | Digital input - accepts 0.8V/2.2V logic thresholds; 5–10pF capacitive load |
| 6 | TAP 2 | Second delayed output (50ns) - enables fine-grained delay interpolation between TAP 1 and TAP 3 |
| 7 | TAP 4 | Fourth delayed output (100ns) - provides mid-range delay for clock deskew or pulse shaping |
| 8 | GND | Signal and power ground - requires low-impedance connection to minimize delay jitter |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay core | Eliminates aging, thermal hysteresis, and parameter drift inherent in hybrid/ceramic delay lines |
| Equal tap spacing | Enables linear delay interpolation and predictable phase relationships across all five outputs |
| Leading- and trailing-edge accuracy | Ensures consistent pulse width preservation across all taps - critical for duty-cycle-sensitive applications |
| TTL/CMOS compatibility | Direct interface with legacy 74LS, modern 74HC, and mixed-voltage logic families without level shifters |
| Vapor-phase, IR, and wave solderable | Supports all standard PCB assembly processes without reflow profile modification or reliability risk |
Applications
| Digital Clock Deskew | Pulse Width Adjustment |
|---|---|
Use Scenario: Aligning clock edges across multiple ASIC/FPGA inputs to meet tight setup/hold timing margins. IC Role / Device Role / Timing Role: DS1100U-125+ provides calibrated, temperature-stable delays to compensate for trace-length mismatches. Use Value: Achieves sub-5ns inter-channel skew control without FPGA PLL tuning or custom PCB routing iterations. | Use Scenario: Extending or narrowing digital pulse widths in test equipment and industrial control sequencers. IC Role / Device Role / Timing Role: DS1100U-125+ generates precise delayed replicas used to gate or mask original pulses via XOR or AND logic. Use Value: Enables programmable pulse shaping using discrete logic instead of microcontroller-based timing loops. |
| Logic Signal Delay Matching | High-Speed Data Sampling Alignment |
Use Scenario: Synchronizing enable, address, and data signals entering memory controllers or bus transceivers. IC Role / Device Role / Timing Role: DS1100U-125+ applies identical delay offsets to parallel signal paths to maintain timing correlation. Use Value: Prevents metastability and bus contention by ensuring simultaneous signal arrival within 1ns window. | Use Scenario: Aligning sampling clocks with analog-to-digital converter (ADC) aperture times in digitizers. IC Role / Device Role / Timing Role: DS1100U-125+ delays the sampling strobe to match internal ADC pipeline latency. Use Value: Reduces effective aperture jitter and improves ENOB by eliminating clock-to-data misalignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1000Z-125+ | Hybrid construction; ±10% delay tolerance over temperature vs. ±3.2% for DS1100U-125+ | Limited to commercial temp range (0°C to +70°C); not rated for industrial environments | Select DS1000Z-125+ only for cost-sensitive, non-industrial designs where tighter delay stability is not required. |
| MAX96706ASA+ | Not a delay line - serial deserializer with embedded timing recovery; no fixed tap outputs | Targets high-speed video/data serialization, not discrete timing alignment | Not functionally equivalent; consider only if system-level architecture shifts to serialized interfaces. |
Compared with DS1000Z-125+, DS1100U-125+ delivers superior temperature stability and industrial-grade reliability in the same µMAX footprint; MAX96706ASA+ serves unrelated high-speed serial functions and cannot replace DS1100U-125+ in tap-based delay applications.
Availability
DS1100U-125+ is available at Aetrix Electronics and suitable for digital timing alignment, clock deskew, and pulse-width adjustment applications requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for DS1100U-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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and timing ICs for industrial, automotive, and communications systems.
The DS1100 series was developed as a silicon-based replacement for hybrid delay lines, targeting high-reliability, low-drift timing elements in space-constrained digital systems.
FAQ
What is the operating temperature range for DS1100U-125+?
The DS1100U-125+ is specified for continuous operation from –40°C to +85°C. This industrial temperature range is validated across all electrical parameters including delay tolerance, supply current, and output drive strength, making DS1100U-125+ suitable for deployment in harsh environments such as factory automation controllers and outdoor telecom infrastructure.
Does DS1100U-125+ support both rising and falling edge delays?
Yes, DS1100U-125+ reproduces both leading and trailing edges with equal precision - tPLH and tPHL are matched within ±4ns over the full temperature range. This ensures consistent pulse width preservation across all five taps, which is essential for applications like gated clock generation and duty-cycle-critical waveform shaping using DS1100U-125+.
Can DS1100U-125+ drive standard TTL loads directly?
Yes, each tap of DS1100U-125+ can drive up to 10 LS-TTL loads (IOL = 12mA, IOH = –1mA). The output structure meets TTL voltage thresholds (VOH ≥ 2.4V, VOL ≤ 0.5V at specified loads), allowing direct interface with 74LS, 74F, and compatible logic families without additional buffer stages - a key design advantage confirmed in DS1100U-125+ DC electrical characteristics.
Is DS1100U-125+ RoHS-compliant?
Yes, DS1100U-125+ features a lead(Pb)-free/RoHS-compliant µMAX package, indicated by the "+" suffix. It meets JEDEC J-STD-020 reflow standards for lead-free soldering (260°C peak), and its packaging materials comply with EU RoHS Directive 2011/65/EU - verified in Maxim's official ordering information and package documentation for DS1100U-125+.
How does DS1100U-125+ differ from DS1100Z-125+?
DS1100U-125+ uses an 8-pin µMAX package (3mm × 3mm), while DS1100Z-125+ uses an 8-pin SOIC (150-mil width). Both share identical electrical specifications, delay values, and temperature rating. The choice depends solely on PCB layout constraints: DS1100U-125+ saves board area; DS1100Z-125+ offers easier manual prototyping and wave solder compatibility - confirmed in Maxim's ordering information for DS1100U-125+.
DS1100U-125+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1100U-125+ FAQ
1.How can I place an order for DS1100U-125+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1100U-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 DS1100U-125+ reliable?
The price and inventory of DS1100U-125+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1100U-125+ is usually 5 days.
3.What payment methods are accepted for DS1100U-125+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1100U-125+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1100U-125+?
DS1100U-125+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1100U-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 DS1100U-125+?
For technical support, including DS1100U-125+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1100U-125+ requirements.
6.How does Aetrix verify that DS1100U-125+ is sourced from the original manufacturer or authorized distributors?
All DS1100U-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 DS1100U-125+ meets industry standards.
7.What is the process for return or replacement of DS1100U-125+?
All DS1100U-125+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1100U-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 DS1100U-125+ part is unused and in its original packaging.
Return procedure for DS1100U-125+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1100U-125+ Tags

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