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Analog Devices Inc./Maxim Integrated DS1040Z-75+T&R
- Part No.:
- DS1040Z-75+T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1040Z-75+T&R.pdf
- Description:
- IC DELAY LINE 5TAP 75NS 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,738
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Product details
Overview
DS1040Z-75+T&R from Maxim Integrated (formerly Dallas Semiconductor) is a rising-edge-triggered, CMOS programmable one-shot pulse generator with five fixed pulse widths, nominal 75 ns maximum output width, ±5% or ±2 ns width tolerance, and dual non-inverted/inverted outputs. It serves as a precision timing element in laser power control circuits for magneto-optical disk read/write systems.
For engineers reviewing the DS1040Z-75+T&R datasheet, DS1040Z-75+T&R pinout, DS1040Z-75+T&R application, or DS1040Z-75+T&R equivalent, key selection criteria include guaranteed 75 ns max pulse width, 10 ns intrinsic delay, TTL/CMOS compatibility, 8-pin SOIC packaging, and dual complementary outputs for synchronous signal conditioning.
Technical Context
The DS1040Z-75+T&R implements a parallel-programmed, edge-triggered monostable multivibrator using all-silicon CMOS logic. Pulse width is selected via three binary-coded programming pins (P0–P2), with the -75 variant configured for a maximum width of 75 ns and minimum width of 15 ns across its five selectable steps.
It features dual buffered outputs capable of driving up to five 74LS loads each, intrinsic delay ≤10 ns from trigger to output edge, and operates from a single +5.0 V ±5% supply. Width accuracy is specified as ±5% or ±2 ns (whichever greater) over 0°C to 70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Pulse Width | 75 ns - defines longest controllable laser gate or enable duration in optical head timing |
| Width Tolerance | ±5% or ±2 ns - ensures timing repeatability within 3.75 ns or 2 ns, critical for jitter-sensitive write pulses |
| Intrinsic Delay | ≤10 ns - limits total trigger-to-output latency, enabling tight synchronization with high-speed control logic |
| Supply Voltage | +5.0 V ±5% - compatible with standard TTL/CMOS logic rails without level-shifting |
| Output Drive | 5 × 74LS loads - supports direct fanout to legacy logic without buffer amplification |
| Operating Temp | 0°C to +70°C - validated for commercial-grade embedded optical subsystems |
| Logic Interface | TTL/CMOS-compatible inputs - accepts standard 5 V logic thresholds (VIH ≥2.2 V, VIL ≤0.8 V) |
Pinout & Package
DS1040Z-75+T&R is supplied in an 8-pin SOIC package (150-mil width), surface-mount compatible with vapor phase, IR, and wave soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Trigger Input | Rising-edge sensitive input; initiates pulse generation on active transition |
| P0, P1, P2 | Width Programming Pins | 3-bit parallel code selects one of five pulse widths (e.g., 15/30/45/60/75 ns for -75 variant) |
| GND | Ground Reference | Common return for supply and signal paths; required for stable timing reference |
| OUT | Non-inverted Output | Active-high pulse synchronized to IN rising edge; drives primary load |
| OUT | Inverted Output | Complementary active-low pulse; enables differential or enable/disable pairing |
| VCC | Power Supply | +5.0 V ±5% supply input; powers internal CMOS logic and output buffers |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon CMOS construction | Eliminates hybrid packaging reliability risks and enables auto-insertion and reflow compatibility |
| Dual complementary outputs | Provides simultaneous active-high and active-low timing signals without external inverters |
| Programmable width selection | Five discrete, factory-trimmed widths allow precise matching to system timing margins without custom design |
| Low intrinsic delay (≤10 ns) | Minimizes total path latency in closed-loop laser power control feedback loops |
| Stable width tolerance (±5% or ±2 ns) | Guarantees consistent pulse duration across temperature and voltage variation in optical drive applications |
Applications
| Magneto-Optical Laser Power Control | Disk Drive Write Pulse Timing |
|---|---|
Use Scenario: Precise gating of laser diode current during write operations on MO media to prevent thermal damage and ensure bit integrity. IC Role / Device Role / Timing Role: Programmable one-shot generating calibrated enable pulses for laser driver MOSFETs. Use Value: 75 ns max width with ±2 ns absolute tolerance enables sub-10 ns timing margin control in high-density write channels. | Use Scenario: Synchronizing magnetic field switching and laser activation during sector-level write cycles in removable MO drives. IC Role / Device Role / Timing Role: Edge-triggered pulse generator providing time-aligned enable signals to write head drivers and bias controllers. Use Value: Dual OUT/OUT outputs allow concurrent activation and deactivation sequencing without added logic propagation delay. |
| Optical Head Servo Timing | Legacy Logic Timing Calibration |
Use Scenario: Generating reference strobes for analog-to-digital sampling of servo error signals in MO head positioning circuits. IC Role / Device Role / Timing Role: Stable-width pulse source triggering ADC conversion windows aligned to mechanical motion phases. Use Value: 5% width stability over 0°C–70°C ensures consistent sampling window placement despite ambient thermal drift. | Use Scenario: Replacing aging discrete monostables or RC-based timers in industrial control panels with legacy 74LS logic. IC Role / Device Role / Timing Role: Drop-in replacement for unreliable analog timing elements requiring predictable, repeatable pulse durations. Use Value: Direct 74LS load compatibility and 5 V operation eliminate interface level-shifting and reduce BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable one-shot applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1040M-75+ | Same electrical specs and programming logic, but in 8-pin DIP (300-mil) through-hole package | Suitable for prototyping, manual assembly, or legacy PCBs with DIP footprints | Select DS1040M-75+ when board layout requires through-hole mounting or hand-soldering capability |
| MC14538BDR2G | CMOS dual retriggerable monostable with adjustable RC timing; no factory-trimmed widths; typical width tolerance ±20% | Used where variable width adjustment is needed, not fixed precision widths | Choose MC14538BDR2G only if system requires user-tunable pulse width via external R/C network |
Compared with DS1040Z-75+T&R, DS1040M-75+ offers identical timing performance in a through-hole package, while MC14538BDR2G provides flexibility at the cost of width accuracy and repeatability-making DS1040Z-75+T&R optimal for fixed-precision, production-ready optical timing.
Availability
DS1040Z-75+T&R is available at Aetrix Electronics and suitable for magneto-optical storage systems, laser diode driver timing, and legacy logic timing calibration requiring stable component supply and long-term obsolescence management.
Supply support for DS1040Z-75+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
Maxim Integrated (acquired by Analog Devices in 2021) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications.
The DS1040 series was developed by Dallas Semiconductor specifically for high-reliability, fixed-width pulse generation in optical storage and instrumentation systems where hybrid timer alternatives failed.
FAQ
What is the exact maximum pulse width programmed into DS1040Z-75+T&R?
The DS1040Z-75+T&R is factory-programmed for a maximum pulse width of 75 ns, with selectable steps of 15 ns, 30 ns, 45 ns, 60 ns, and 75 ns determined by the P2–P0 programming pin states. This value is fixed per the -75 suffix and verified per Table 1 in the official datasheet.
Does DS1040Z-75+T&R require external components to operate?
No, DS1040Z-75+T&R operates as a fully self-contained pulse generator with no external timing components required. It uses internal factory-trimmed circuitry to achieve its specified widths. Only decoupling capacitance (recommended 0.1 µF ceramic near VCC/GND) is advised for noise suppression.
Can DS1040Z-75+T&R drive modern logic families like 74LVC or ARM GPIO directly?
DS1040Z-75+T&R outputs are rated for 5 × 74LS loads (8 mA sink, –1 mA source). While it can interface with 74LVC or microcontroller GPIO under light load and proper voltage translation, direct connection is not recommended without verifying input thresholds and loading-its drive strength and 5 V logic levels may exceed safe input ranges for 3.3 V or lower I/O.
What is the intrinsic delay specification for DS1040Z-75+T&R, and how is it measured?
The intrinsic delay (tD) of DS1040Z-75+T&R is guaranteed ≤10 ns, measured from the 1.5 V point on the rising edge of the IN trigger to the 1.5 V point on the rising edge of the OUT output, per the official test conditions defined in the datasheet (VCC = 5.0 V ±0.1 V, TA = 25°C).
Is DS1040Z-75+T&R RoHS compliant and lead-free?
Yes, DS1040Z-75+T&R is RoHS-compliant and lead-free. The "+" suffix in the part number denotes compliance with EU RoHS Directive 2011/65/EU and exemption 7a, confirmed in Maxim Integrated's official product change notices and packaging data sheets.
DS1040Z-75+T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Taps/Steps:
- 5
- Function:
- 1-Shot, Programmable
- Delay to 1st Tap:
- 15ns
- Tap Increment:
- 15 ns
- Available Total Delays:
- 75ns
- 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:
- 8-SOIC
DS1040Z-75+T&R FAQ
1.How can I place an order for DS1040Z-75+T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1040Z-75+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 DS1040Z-75+T&R reliable?
The price and inventory of DS1040Z-75+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 DS1040Z-75+T&R is usually 5 days.
3.What payment methods are accepted for DS1040Z-75+T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1040Z-75+T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1040Z-75+T&R?
DS1040Z-75+T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1040Z-75+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 DS1040Z-75+T&R?
For technical support, including DS1040Z-75+T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1040Z-75+T&R requirements.
6.How does Aetrix verify that DS1040Z-75+T&R is sourced from the original manufacturer or authorized distributors?
All DS1040Z-75+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 DS1040Z-75+T&R meets industry standards.
7.What is the process for return or replacement of DS1040Z-75+T&R?
All DS1040Z-75+T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1040Z-75+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 DS1040Z-75+T&R part is unused and in its original packaging.
Return procedure for DS1040Z-75+T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1040Z-75+T&R Tags
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