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Analog Devices Inc./Maxim Integrated DS1020-100
- Part No.:
- DS1020-100
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DS1020-100.pdf
- Description:
- IC DELAY LINE 256TAP 265NS 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,961
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Product details
Overview
DS1020-100 from Dallas Semiconductor (now Maxim Integrated) is a programmable 8-bit silicon delay line IC with fixed 10 ns inherent delay, 1 ns per-step resolution, and 265 ns maximum delay. It supports both 3-wire serial and 8-bit parallel programming, delivers TTL/CMOS-compatible output driving capability (8 mA sink), and operates at 5 V over 0°C to 70°C. It is used in precision timing alignment for high-speed digital test systems and logic synchronization.
For engineers reviewing the DS1020-100 datasheet, DS1020-100 pinout, DS1020-100 application, or DS1020-100 equivalent, key selection criteria include step resolution (1 ns), max delay (265 ns), dual-programming interface support, edge-accurate delay reproduction, and SOIC/DIP package compatibility for legacy or space-constrained PCBs.
Technical Context
The DS1020-100 implements an all-CMOS, non-inverting delay architecture with 256 programmable delay steps (0–255), where each step adds exactly 1 ns to the base 10 ns inherent delay. Delay accuracy is specified as ±20 ns across the full range, with rising- and falling-edge matching confirmed under 5 V/25°C test conditions.
It features dual configuration modes: parallel mode (S = 1) uses P0–P7 as static delay-setting inputs with E as latch enable, while serial mode (S = 0) loads 8-bit data MSB-first via D/C/Q pins with E controlling register activation. Daisy-chaining is supported via Q-to-D cascading without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Inherent delay | 10 ± 2 ns - baseline propagation time before programming; sets minimum system timing floor |
| Max delay | 265 ns - absolute upper limit for timing alignment in single-device configurations |
| Delay step size | 1 ns - enables precise sub-cycle adjustment for 1 GHz-class signal path tuning | Delay accuracy | ±20 ns - worst-case deviation from programmed value; critical for deterministic jitter budgets |
| Supply voltage | 4.75 V to 5.25 V - tight 5 V tolerance ensures stable delay performance across rail variation |
| Input/output logic | TTL/CMOS-compatible - drives 10 × 74LS loads; interfaces directly with legacy and mixed-voltage logic |
| Operating temp | 0°C to 70°C - commercial-grade range suitable for bench test equipment and industrial controllers |
Pinout & Package
DS1020-100 is available in 16-pin plastic DIP (300-mil) and 16-pin SOIC (300-mil) packages. Both share identical pin mapping and are auto-insertable or reflow-solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Delay input | Asynchronous logic signal source; delay starts on either edge per specification |
| OUT | Delay output | Non-inverted replica of IN after programmed delay; edge-aligned to within ±20 ns |
| P0–P7 | Parallel program inputs | 8-bit binary word defining delay step (0–255); must be held static or latched via E in parallel mode |
| S | Mode select | High = parallel mode; Low = serial mode; determines active programming interface |
| E | Enable | Active-high control for register latch (parallel) or serial load/activation (serial) |
| C | Serial clock | Rising-edge-triggered clock for serial bit shifting; min 10 MHz frequency supported |
| D | Serial data input | MSB-first serial data stream; requires tDSC ≥ 30 ns setup relative to C |
| Q | Serial data output / P0 | MSB-first readback of internal register; also functions as LSB in parallel mode (dual-role pin) |
| VCC | Power supply | +5 V supply; decoupling required near pin due to CMOS switching current |
| GND | Ground reference | Signal and power return; must be low-impedance for timing stability |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon construction | Eliminates hybrid delay line reliability risks (e.g., wire bond fatigue, thermal drift) and enables standard PCB assembly |
| Dual programming interface | Supports both infrequent jumper-based (parallel) and dynamic microcontroller-driven (serial) delay reconfiguration |
| Edge-accurate delay | Guaranteed matching between tPLH and tPHL delays; essential for duty-cycle preservation in clock/data recovery |
| Daisy-chain capability | Q-to-D cascading allows synchronized multi-device delay stacks without external shift registers or glue logic |
| Low-power CMOS | 30 mA typical active current at 1 MHz period enables use in thermally constrained test fixtures |
Applications
| Digital Test Equipment Timing Calibration | Logic Signal Synchronization |
|---|---|
Use Scenario: Aligning stimulus and response edges in automated test equipment (ATE) for ASIC validation. IC Role / Device Role / Timing Role: Programmable skew adjuster placed between pattern generator and DUT input to compensate for interconnect delay mismatch. Use Value: 1 ns step resolution enables sub-clock-cycle alignment; ±20 ns accuracy ensures repeatable pass/fail margins across temperature. | Use Scenario: Matching arrival times of clock and data signals at FPGA I/O banks in high-speed interface designs. IC Role / Device Role / Timing Role: Non-inverting delay element inserted in clock path to deskew against data path propagation. Use Value: 265 ns max delay covers typical PCB trace length mismatches; TTL/CMOS compatibility avoids level-shifter overhead. |
| Multi-Channel Pulse Generator Offset | Legacy System Timing Repair |
Use Scenario: Introducing controlled, adjustable delays across multiple channels of a pulse generator for phased stimulation. IC Role / Device Role / Timing Role: Channel-specific delay node in modular instrumentation; programmed via microcontroller SPI interface. Use Value: Serial daisy-chaining allows single MCU port to configure up to 8 DS1020-100 units with minimal GPIO usage. | Use Scenario: Replacing obsolete hybrid delay modules in field-deployed industrial controllers without board redesign. IC Role / Device Role / Timing Role: Drop-in functional replacement for aging 16-pin DIP delay lines requiring 250–270 ns range. Use Value: Pin-compatible DIP package and identical 5 V operation enable direct socket replacement; no firmware or layout changes needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1020-200 | 2 ns/step, 520 ns max delay, ±40 ns accuracy - double step size, wider range, looser tolerance | Used where coarse delay adjustment suffices (e.g., power-on sequencing, slow control loops) | Select when 1 ns resolution is unnecessary and longer delays (>265 ns) are required |
| MAX962 | 10-bit resolution, 0–1000 ns range, ±1% accuracy, 3.3 V operation - higher precision, different voltage domain, no serial daisy-chain | Preferred in modern 3.3 V systems needing tighter tolerance and wider dynamic range | Choose for new 3.3 V designs requiring <±10 ns accuracy; not pin-compatible with DS1020-100 |
Compared with DS1020-200 and MAX962, the DS1020-100 uniquely balances 1 ns resolution, 5 V compatibility, and serial daisy-chaining in a legacy-pinout package-making it optimal for upgrading aging 5 V test gear where fine-grained, multi-device timing control is critical.
Availability
DS1020-100 is available at Aetrix Electronics and suitable for digital test equipment calibration, logic signal synchronization, and legacy system timing repair requiring stable component supply and long-term obsolescence mitigation.
Supply support for DS1020-100 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, acquired by Maxim Integrated in 2001, specialized in precision analog, timing, and secure memory ICs for industrial and test applications.
The DS1020 family was designed to replace unreliable hybrid delay lines with robust, solderable silicon alternatives for timing-critical instrumentation and logic interface applications.
FAQ
What is the inherent delay of the DS1020-100, and how does it affect total delay calculation?
The DS1020-100 has an inherent (step-zero) delay of 10 ± 2 ns. Total delay equals this base value plus the programmed step count multiplied by 1 ns (e.g., step 150 yields 10 + 150 = 160 ns). This fixed offset must be included in all timing budget calculations for the DS1020-100 to ensure accurate system-level alignment.
Can the DS1020-100 be used in both serial and parallel programming modes simultaneously?
No - the DS1020-100 operates exclusively in one mode at a time, selected by the logic level on pin S. When S = 1, only P0–P7 inputs are active; when S = 0, only D/C/Q pins function. Mixing modes causes undefined behavior, so the DS1020-100 must be configured statically per application requirements.
Does the DS1020-100 support daisy-chaining, and what is required to implement it?
Yes - the DS1020-100 supports daisy-chaining via its Q (serial output) and D (serial input) pins. To cascade N devices, connect Q of device N−1 to D of device N, drive shared C and E lines, and clock 8×N bits MSB-first. Each DS1020-100 retains its own delay setting after the full chain is loaded.
What is the maximum clock frequency supported for serial programming of the DS1020-100?
The DS1020-100 supports a maximum serial clock (C) frequency of 10 MHz, as specified in its AC electrical characteristics. Clock pulses must meet tCW ≥ 50 ns high/low width and observe tDSC ≥ 30 ns setup/tDHC ≥ 10 ns hold relative to C edges to ensure reliable register loading in the DS1020-100.
Is the DS1020-100 output inverted, and how does it handle input signal edges?
No - the DS1020-100 reproduces the input logic state at the output without inversion. It provides leading and trailing edge accuracy: both rising (tPLH) and falling (tPHL) delays match within ±20 ns across the full 10–265 ns range, ensuring duty cycle integrity for the DS1020-100 in clock distribution paths.
DS1020-100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Taps/Steps:
- 256
- Function:
- Programmable
- Delay to 1st Tap:
- 10ns
- Tap Increment:
- 1 ns
- Available Total Delays:
- 265ns
- 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:
- 16-PDIP
DS1020-100 FAQ
1.How can I place an order for DS1020-100 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1020-100 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 DS1020-100 reliable?
The price and inventory of DS1020-100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1020-100 is usually 5 days.
3.What payment methods are accepted for DS1020-100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1020-100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1020-100?
DS1020-100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1020-100 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 DS1020-100?
For technical support, including DS1020-100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1020-100 requirements.
6.How does Aetrix verify that DS1020-100 is sourced from the original manufacturer or authorized distributors?
All DS1020-100 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 DS1020-100 meets industry standards.
7.What is the process for return or replacement of DS1020-100?
All DS1020-100 units undergo pre-shipment inspection (PSI). If there is an issue with DS1020-100, 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 DS1020-100 part is unused and in its original packaging.
Return procedure for DS1020-100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1020-100 Tags
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Analog Devices Inc.
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Analog Devices Inc./Maxim Integrated
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