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Analog Devices Inc./Maxim Integrated DS1023S-50+
- Part No.:
- DS1023S-50+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DS1023S-50+.pdf
- Description:
- IC DEL LN 256TAP 127.5NS 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:170
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Product details
Overview
DS1023S-50+ from Maxim Integrated (formerly Dallas Semiconductor) is an 8-bit programmable silicon delay line configured as a precision timing element for clock phase control, pulse width modulation, and free-running oscillator generation. It delivers 0.5 ns step resolution, up to 127.5 ns maximum delay (wrt REF), ±2 ns integral non-linearity, and operates from a single 5V supply in 16-pin SOIC package. Used in high-speed digital test equipment for jitter injection and clock deskew.
For engineers reviewing the DS1023S-50+ datasheet, DS1023S-50+ pinout, DS1023S-50+ application, or DS1023S-50+ equivalent, key selection considerations include step size accuracy vs. temperature, REF/OUT dual-output mode select behavior, serial daisy-chain programming capability, and guaranteed monotonic delay response across full 0–255 programming range.
Technical Context
The DS1023S-50+ implements a digitally controlled analog delay line with on-chip reference delay trimming to enable true 0–360° clock phase adjustment. Its architecture supports three functional modes-delay line, PWM generator, and free-running oscillator-selected via MS and P/S pins.
Delay programming occurs either in parallel (P0–P7 + LE latch) or serially (D/P2, CLK/P1, Q/P0), with shared pins and MSB-first protocol. The device guarantees monotonicity and includes internal gating for PWM output generation triggered by IN rising edge, with minimum reliable pulse width of 5 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay Step Size | 0.5 ns - smallest programmable increment; enables fine-grained clock phase alignment |
| Max Delay (wrt REF) | 127.5 ns - usable delay range after subtracting trimmed reference offset; supports full-period clock delay at ≤25 MHz |
| Step Zero Delay | −2 to 0 ns (typ 16.5 ns absolute) - inherent propagation delay; compensated by on-chip REF output |
| Integral Non-linearity | ±2 ns - maximum deviation from ideal linear delay vs. code; critical for timing-critical calibration systems |
| Input Frequency Limit | 25 MHz - maximum input clock frequency supported in normal delay mode |
| Min Input Pulse Width | 20 ns - shortest valid trigger pulse for reliable delay/PWM operation |
| Supply Voltage | 4.75 V to 5.25 V - tight 5V tolerance ensures stable delay characteristics across rail variation |
Pinout & Package
DS1023S-50+ is housed in a 16-pin 300-mil SOIC package (JEDEC MS-012AC), surface-mount compatible with standard reflow profiles and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Signal Input | Primary timing signal source; triggers all internal delay paths and PWM generation |
| OUT/OUT | Delayed Output | Programmable-delay replica of IN (non-inverted in MS=0, inverted in MS=1); used for phase-shifted clocks or oscillator feedback |
| REF/PWM | Reference or PWM Output | In MS=0: fixed ~18–22 ns reference delay; in MS=1: rising-edge-triggered PWM output with width = programmed delay |
| P0/Q | Parallel Data / Serial Output | In parallel mode: LSB data input; in serial mode: MSB-first data output during readback or daisy-chain |
| P1/CLK | Parallel Data / Serial Clock | In parallel mode: bit-1 input; in serial mode: rising-edge clock for shifting 8-bit delay value into register |
| P2/D | Parallel Data / Serial Input | In parallel mode: bit-2 input; in serial mode: MSB-first serial data input for programming |
| P3–P7 | Parallel Inputs | Bits 3–7 of 8-bit delay word; must be tied to defined logic levels (not floating) per CMOS design rules |
| LE | Latch Enable | Active-high control: latches parallel data when transitioned low; must be high during serial load/read operations |
| P/S | Programming Mode Select | Low = parallel mode; high = serial mode; polarity reversed vs. DS1020/DS1021 |
| MS | Output Mode Select | Low = REF/OUT dual-output delay line; high = PWM/OUT oscillator mode |
| VCC | Power Supply | +5V supply; decoupling capacitor required near pin for noise-sensitive timing stability |
| GND | Ground Reference | Analog/digital common return; low-inductance connection essential for delay accuracy |
Key Features
| Feature | Design Value |
|---|---|
| On-chip reference delay | Trimmed 18–22 ns REF output cancels step-zero variation, enabling true zero-relative delay calibration |
| Configurable functional modes | Single device serves as delay line, PWM modulator, or oscillator-reducing BOM count in multi-function timing boards |
| Guaranteed monotonic delay | Delay increases strictly with increasing program code; eliminates timing ambiguity in closed-loop phase control |
| Serial daisy-chain capability | Q/P0 and D/P2 pins support cascaded programming of multiple DS1023S-50+ units using one serial bus |
| Destructive serial read with auto-restore | Internal register contents can be read back via serial port and restored using external 1–10 kΩ resistor-enabling runtime configuration verification |
Applications
| High-Speed Test Equipment | Digital Phase-Locked Loops |
|---|---|
Use Scenario: Jitter injection and clock recovery validation in bit-error-rate testers (BERTs) and oscilloscope calibration fixtures. IC Role / Device Role / Timing Role: Programmable delay element generating precise, repeatable timing offsets between reference and test clock paths. Use Value: Enables sub-nanosecond jitter sweep without external components; REF output provides stable baseline for differential delay measurement. | Use Scenario: Fine-phase adjustment in FPGA-based PLL feedback loops where VCO tuning range is insufficient. IC Role / Device Role / Timing Role: Digital-controlled analog delay inserted in PLL reference path to shift lock point and compensate for board trace skew. Use Value: Achieves <1° phase resolution at 100 MHz clock rates using 0.5 ns steps; eliminates need for custom ASIC timing blocks. |
| Automated Test Systems | Industrial Motion Control |
Use Scenario: Synchronization of multi-channel digital I/O in PXI-based ATE platforms requiring deterministic inter-channel delay. IC Role / Device Role / Timing Role: Parallel-programmed delay unit aligning stimulus and capture timing across 8-bit data buses. Use Value: Supports hard-wired DIP-switch or microcontroller-driven delay configuration; LE pin enables glitch-free updates during live test sequences. | Use Scenario: PWM generation for stepper motor current profiling in CNC controller modules with variable acceleration ramps. IC Role / Device Role / Timing Role: Hardware-based pulse width modulator triggered by encoder index pulses, with width set by position lookup table. Use Value: Offloads PWM timing from MCU; supports 5–127.5 ns pulse widths with consistent edge placement-critical for torque ripple reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1023-50+ | Same die, 16-pin DIP package; identical electrical specs but different thermal resistance and board area | Preferred for through-hole prototyping or legacy DIP-based test fixtures | Select DS1023-50+ only if DIP footprint and hand-solderability are required; SOIC version offers better high-frequency stability. |
| MAX9600 | 3.3V-only, 10-bit resolution, 25 ps step size; no REF output or PWM mode; requires external reference clock | Better suited for ultra-fine delay in RF sampling systems, not clock phase control or oscillator use | Choose MAX9600 only when sub-100 ps resolution and 3.3V compatibility outweigh loss of dual-mode functionality and on-chip reference. |
Compared with DS1023-50+ and MAX9600, the DS1023S-50+ uniquely combines 5V operation, integrated REF compensation, PWM generation, and oscillator capability in a compact SOIC package-making it the only option supporting full 0–360° phase control without external components.
Availability
DS1023S-50+ is available at Aetrix Electronics and suitable for high-speed test instrumentation, digital PLL calibration, automated test equipment, and industrial motion control systems requiring stable component supply across extended production lifecycles.
Supply support for DS1023S-50+ 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) is a U.S.-based semiconductor company specializing in precision analog, mixed-signal, and high-reliability timing solutions.
The DS1023S-50+ belongs to Maxim's legacy programmable timing element family, designed specifically for applications demanding deterministic, digitally adjustable delays with on-chip reference compensation and multi-mode flexibility.
FAQ
What is the guaranteed delay step resolution for DS1023S-50+?
The DS1023S-50+ guarantees a 0.5 ns delay step resolution across its full 8-bit programming range (0–255). This value is specified in the AC Electrical Characteristics table for DS1023-50 devices under "Delay Step Size" with min/typ/max bounds of 0/0.5/1.5 ns. The typical 0.5 ns step enables precise clock phase alignment in high-speed digital systems.
How does the REF output function in DS1023S-50+ delay calibration?
The REF output in DS1023S-50+ provides a fixed ~18–22 ns delay that is trimmed to exceed the step-zero delay (tD0) by ~1.5 ns. When measuring delay relative to REF instead of absolute IN-to-OUT time, the effective minimum delay becomes zero or slightly negative-enabling full 0–360° clock phase control. This eliminates process- and temperature-induced offset errors in precision timing applications.
Can DS1023S-50+ generate a free-running oscillator, and how is it configured?
Yes, DS1023S-50+ can operate as a free-running oscillator. Configure MS = 1 and externally connect the OUT pin back to the IN pin. The oscillation period equals twice the programmed absolute delay (2 × tD), yielding frequencies from ~3.6 MHz (min, DS1023S-50+) to 22 MHz (max). Startup requires initial power-up delay (tPU = 100 ms) and stable 5V supply; no external components are needed beyond the feedback trace.
What is the minimum input pulse width supported by DS1023S-50+ in PWM mode?
In PWM mode (MS = 1), DS1023S-50+ supports a minimum reliable output pulse width of 5 ns. While narrower pulses may be programmed, they cause degraded high-level voltage or complete loss of output. The minimum input pulse width remains 20 ns-unchanged from normal delay mode-as confirmed in the DS1023-50 AC specifications table under "Minimum Input Pulse Width".
Is DS1023S-50+ pin-compatible with DS1023-50+?
Yes, DS1023S-50+ is pin-compatible with DS1023-50+. Both share identical 16-pin SOIC (DS1023S) and DIP (DS1023) footprints, matching pin assignments, electrical characteristics, and functional behavior. The "S" suffix denotes SOIC packaging; all timing, programming, and mode-select logic remain identical-enabling direct substitution in existing layouts with no PCB changes required.
DS1023S-50+ 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:
- Active
- Number of Taps/Steps:
- 256
- Function:
- 1-Shot, Programmable
- Delay to 1st Tap:
- 16.5ns
- Tap Increment:
- 500 ps
- Available Total Delays:
- 127.5ns
- 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
DS1023S-50+ FAQ
1.How can I place an order for DS1023S-50+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1023S-50+ 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 DS1023S-50+ reliable?
The price and inventory of DS1023S-50+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1023S-50+ is usually 5 days.
3.What payment methods are accepted for DS1023S-50+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1023S-50+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1023S-50+?
DS1023S-50+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1023S-50+ 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 DS1023S-50+?
For technical support, including DS1023S-50+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1023S-50+ requirements.
6.How does Aetrix verify that DS1023S-50+ is sourced from the original manufacturer or authorized distributors?
All DS1023S-50+ 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 DS1023S-50+ meets industry standards.
7.What is the process for return or replacement of DS1023S-50+?
All DS1023S-50+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1023S-50+, 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 DS1023S-50+ part is unused and in its original packaging.
Return procedure for DS1023S-50+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1023S-50+ Tags
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