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Analog Devices Inc./Maxim Integrated DS1045S-5
- Part No.:
- DS1045S-5
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DS1045S-5.pdf
- Description:
- IC DELAY LINE 16TAP 84NS 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,850
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Product details
Overview
DS1045S-5 from Maxim Integrated (formerly Dallas Semiconductor) is a 16-pin SOIC dual programmable silicon delay line with one input and two independently programmable outputs. It delivers precise, edge-aligned delays from 9ns to 84ns in 5ns increments, supports TTL/CMOS logic levels, and drives ten 74LS loads - used in high-speed digital timing alignment, clock skew correction, and pulse-width adjustment circuits.
For engineers reviewing the DS1045S-5 datasheet, DS1045S-5 pinout, DS1045S-5 application, or DS1045S-5 equivalent, key selection criteria include output-to-output delay range (9–84ns), parallel programming interface (A0–A3/B0–B3), enable-controlled latching (EA/EB), ±4.1ns max delay tolerance, and SOIC-16 package compatibility with auto-insertion.
Technical Context
The DS1045S-5 implements a fully CMOS-based, all-silicon delay architecture with independent 4-bit parallel programming for OUTA and OUTB. Each output offers 16 discrete delay values determined by binary inputs A0–A3 or B0–B3, with fixed 5ns step resolution across the full 9–84ns range.
It features dual enable inputs (EA, EB) supporting both non-latched (EA/EB = VIH) and latched (EA/EB pulsed) programming modes, with validated timing parameters including tPDV = 10ns (program-to-valid delay) and tEDV = 15ns (enable-to-valid delay), ensuring deterministic setup/hold compliance in synchronous systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay Range | 9ns to 84ns in 5ns increments per output - enables fine-grained timing control without external RC networks. |
| Delay Tolerance | ±4.1ns maximum - guarantees predictable edge alignment across temperature (0°C to 70°C) and supply (4.75V–5.25V). |
| Input Compatibility | TTL- and CMOS-compatible inputs - interfaces directly with 74LS, 74HC, and microcontroller GPIO without level-shifting. |
| Output Drive | Drives 10 × 74LS loads - sufficient fanout for mid-density logic interconnects without buffering. |
| Edge Accuracy | Both rising (tPLH) and falling (tPHL) edge delays matched within tolerance - preserves pulse integrity for bidirectional signal conditioning. |
| Supply Voltage | 4.75V to 5.25V at VCC - operates reliably within standard 5V TTL/CMOS rails with ±5% regulation. |
| Package | 16-pin SOIC (300-mil width) - surface-mount compatible with automated assembly and IPC-7351 footprint standards. |
Pinout & Package
DS1045S-5 is housed in a 16-pin SOIC (300-mil body width, 1.27mm pitch), RoHS-compliant, moisture-sensitive level 3 (MSL3) package suitable for reflow soldering per J-STD-020A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Primary signal input | Accepts TTL/CMOS logic pulses; delay timing starts at 1.5V crossing on rising/falling edges. |
| OUTA, OUTB | Programmable delayed outputs | Each reproduces IN waveform with independently set delay; both edges preserved within ±4.1ns. |
| A0–A3, B0–B3 | Parallel delay configuration inputs | 4-bit binary codes select one of 16 delay values for OUTA or OUTB respectively (e.g., 0000 = 9ns, 1111 = 84ns). |
| EA, EB | Output enable controls | Active-high enables latching of A0–A3/B0–B3; when held high, enables non-latched static programming. |
| VCC | Power supply | +5V supply pin; requires local 0.1µF ceramic decoupling adjacent to pin for noise immunity. |
| GND | Ground reference | Signal and power ground return; must be low-impedance connection to minimize delay jitter. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent delay paths | OUTA and OUTB programmed separately via dedicated 4-bit buses - eliminates need for two discrete delay ICs. |
| Edge-accurate delay reproduction | Both tPLH and tPHL specified and matched - maintains pulse width and duty cycle integrity for timing-critical sampling. |
| Low-power CMOS core | ICC ≤ 35mA at 5.25V and 1MHz input - reduces thermal load and simplifies power delivery in dense PCB layouts. |
| Auto-insertable SOIC packaging | Standard 16-pin SOIC footprint - supports pick-and-place assembly and reflow without special tooling or orientation constraints. |
| Programmable settling time control | tPDV = 10ns and tEDV = 15ns guaranteed - enables deterministic timing budgeting in FPGA/CPU interface designs. |
Applications
| High-Speed Logic Timing Alignment | Microcontroller Clock Skew Compensation |
|---|---|
Use Scenario: Synchronizing asynchronous signals between ASICs and FPGAs operating at >20MHz. IC Role / Device Role / Timing Role: Dual-output delay line providing matched path delays to align setup/hold windows across data and strobe lines. Use Value: Eliminates external RC networks and manual tuning; achieves sub-5ns inter-channel skew control with ±4.1ns absolute accuracy. | Use Scenario: Compensating for trace-length-induced clock skew between MCU core and peripheral interface (e.g., SPI flash or ADC). IC Role / Device Role / Timing Role: Programmable delay element inserted in clock distribution path to realign rising edges at slave device inputs. Use Value: Enables reliable 50MHz SPI operation without layout redesign; delay adjusted in-system via GPIO-controlled A0–A3 pins. |
| Digital Pulse Width Adjustment | Test Equipment Signal Conditioning |
Use Scenario: Generating variable-width trigger pulses for laser diode drivers or power MOSFET gate control. IC Role / Device Role / Timing Role: Delay line configured with IN→OUTA and IN→OUTB to produce leading/trailing edge offset and thus adjustable pulse width. Use Value: Achieves 5ns-resolution pulse width tuning (e.g., 9ns to 84ns) using only parallel logic inputs - no DAC or microcontroller required. | Use Scenario: Calibrating time interval analyzers and digital pattern generators requiring known, repeatable delay references. IC Role / Device Role / Timing Role: Precision delay standard generating traceable, edge-accurate output pulses from calibrated input triggers. Use Value: Provides NIST-traceable delay steps (9–84ns @ 5ns) with <20ps jitter - replaces bulkier hybrid modules in benchtop instrumentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual programmable delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1045-5 (DIP) | Same delay range (9–84ns @ 5ns), identical logic and timing specs, but in through-hole 16-pin DIP package. | Used where manual prototyping, socket-based testing, or legacy board repair is required. | Select DS1045-5 for breadboard evaluation or field-replaceable DIP sockets; DS1045S-5 preferred for volume SMT production. |
| MAX962 (SOIC-16) | Single-output, 0–25ns programmable delay with 25ps resolution; no dual-output or 5ns-step capability. | Suitable for ultra-fine delay trimming in RF sampling clocks, not for output-to-output differential delay. | Choose MAX962 only when sub-ns resolution is mandatory and dual outputs are unnecessary; DS1045S-5 remains optimal for multi-path timing alignment. |
Compared with DS1045-5 (DIP), DS1045S-5 offers identical electrical performance in a space-saving SOIC package ideal for automated assembly; versus MAX962, it provides dual independently programmable outputs with coarser but system-level appropriate 5ns steps - making DS1045S-5 the only option meeting both multi-output and industrial-grade delay tolerance requirements.
Availability
DS1045S-5 is available at Aetrix Electronics and suitable for high-speed logic timing alignment, microcontroller clock skew compensation, and digital pulse width adjustment requiring stable component supply across industrial, test equipment, and embedded control programs.
Supply support for DS1045S-5 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) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications.
The DS1045S-5 belongs to Maxim's programmable timing portfolio, engineered specifically for deterministic digital signal alignment in systems where hybrid delay lines were previously required - delivering silicon reliability, programmability, and SOIC manufacturability.
FAQ
What is the minimum and maximum delay achievable with the DS1045S-5?
The DS1045S-5 provides a guaranteed delay range from 9ns to 84ns in fixed 5ns increments per output (OUTA or OUTB). This is achieved via 4-bit parallel programming inputs (A0–A3 for OUTA, B0–B3 for OUTB), with binary code 0000 yielding 9ns and 1111 yielding 84ns. The ±4.1ns maximum delay tolerance applies across the full operating temperature and voltage range (0°C to 70°C, 4.75V–5.25V).
How does the DS1045S-5 handle input and output edge timing accuracy?
The DS1045S-5 guarantees matching delay for both rising (tPLH) and falling (tPHL) edges within its specified ±4.1ns tolerance. This edge accuracy ensures pulse width and duty cycle preservation - critical for applications like clock deskewing and digital pulse shaping. Measurement is referenced to the 1.5V threshold point on both input and output waveforms under standard test conditions (VCC = 5V, TA = 25°C).
Can the DS1045S-5 be used with 3.3V logic systems?
No - the DS1045S-5 is strictly a 5V-only device, with recommended DC operating conditions specifying VCC = 4.75V to 5.25V and input logic thresholds (VIH ≥ 2.2V, VIL ≤ 0.8V) aligned to TTL/CMOS 5V families. It is not 3.3V tolerant; applying 3.3V logic levels may result in unreliable operation or failure to meet timing specifications. For 3.3V systems, consider level-shifting circuitry or alternative delay ICs rated for 3.3V operation.
What is the role of EA and EB pins on the DS1045S-5?
The EA and EB pins are active-high enable controls for OUTA and OUTB, respectively. When held high, they allow static (non-latched) programming via A0–A3/B0–B3. When pulsed, they latch new delay values with defined setup (tDSE = 10ns) and hold (tDHE = 0ns) times. If unused, EA and EB must be tied to VCC (logic high); floating enables are undefined and may cause erratic output behavior due to CMOS input sensitivity.
Is the DS1045S-5 pin-compatible with other devices in the DS1045 family?
Yes - all DS1045 variants (DS1045-3, DS1045-4, DS1045-5, and their SOIC counterparts DS1045S-3, DS1045S-4, DS1045S-5) share identical pinouts, electrical interfaces, and programming protocols. The only difference is delay step size (3ns/4ns/5ns) and corresponding max delay (54ns/69ns/84ns). This allows drop-in replacement during design iteration or volume procurement without PCB or firmware changes.
DS1045S-5 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:
- 16
- Function:
- Multiple, Programmable
- Delay to 1st Tap:
- 9ns
- Tap Increment:
- 5 ns
- Available Total Delays:
- 84ns
- Number of Independent Delays:
- 2
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DS1045S-5 FAQ
1.How can I place an order for DS1045S-5 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1045S-5 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 DS1045S-5 reliable?
The price and inventory of DS1045S-5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1045S-5 is usually 5 days.
3.What payment methods are accepted for DS1045S-5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1045S-5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1045S-5?
DS1045S-5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1045S-5 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 DS1045S-5?
For technical support, including DS1045S-5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1045S-5 requirements.
6.How does Aetrix verify that DS1045S-5 is sourced from the original manufacturer or authorized distributors?
All DS1045S-5 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 DS1045S-5 meets industry standards.
7.What is the process for return or replacement of DS1045S-5?
All DS1045S-5 units undergo pre-shipment inspection (PSI). If there is an issue with DS1045S-5, 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 DS1045S-5 part is unused and in its original packaging.
Return procedure for DS1045S-5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1045S-5 Tags
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