My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1040Z-250+
- Part No.:
- DS1040Z-250+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1040Z-250+.pdf
- Description:
- IC DELAY LINE 5TAP 250NS 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,413
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1040Z-250+ from Maxim Integrated (formerly Dallas Semiconductor) is a rising-edge-triggered, CMOS-based programmable one-shot pulse generator with five selectable pulse widths ranging from 50 ns to 250 ns in unequal increments (50/100/150/200/250 ns), ±5% or ±2 ns width tolerance, and dual inverting/non-inverting outputs for laser power control in magneto-optical disk read/write systems.
For engineers reviewing the DS1040Z-250+ datasheet, DS1040Z-250+ pinout, DS1040Z-250+ application, or DS1040Z-250+ equivalent, key selection criteria include intrinsic delay ≤10 ns, TTL/CMOS compatibility, 5 V supply operation, 8-pin SOIC package, and guaranteed drive capability of five 74LS loads per output.
Technical Context
The DS1040Z-250+ implements a parallel-programmed, edge-sensitive monostable multivibrator architecture where pulse width is determined by the logic states of three dedicated programming pins (P0–P2). It operates exclusively on a +5 V ±5% supply and produces both true and complement outputs simultaneously with no additional external logic.
Timing accuracy is maintained across 0°C to 70°C via internal trimming; width variation due to temperature is limited to ±1 ns or ±3%, whichever is greater. Intrinsic delay (tD) is specified at 0–10 ns, and power-up stabilization requires ≤100 ms before timing specifications are valid.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Pulse Width | 250 ns - sets upper limit for laser enable duration in optical write cycles |
| Width Tolerance | ±5% or ±2 ns - ensures repeatable timing margin for critical edge-aligned control |
| Intrinsic Delay | 0–10 ns - guarantees minimal latency between trigger and output activation |
| Supply Voltage | 4.75 V to 5.25 V - compatible with standard 5 V logic rails without regulation overhead |
| Output Drive | 5 × 74LS loads - supports direct interfacing to legacy TTL logic without buffers |
| Operating Temp | 0°C to 70°C - validated for commercial-grade embedded storage and industrial control environments |
| Input Trigger | Rising-edge only - eliminates false triggering from noise on falling edges |
Pinout & Package
DS1040Z-250+ is housed in an 8-pin SOIC (150-mil width) package, surface-mount compatible with vapor phase, IR, and wave soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Trigger Input | Rising-edge sensitive input; requires ≥5 ns minimum high/low pulse width |
| P0, P1, P2 | Width Programming Inputs | 3-bit parallel code selects one of five pulse widths (000 = 50 ns, 111 = 250 ns) |
| GND | Ground Reference | Return path for all internal logic and output drivers; must be low-impedance |
| OUT | Non-inverted Output | Active-high pulse synchronized to IN rising edge; drives 5 × 74LS loads |
| OUT | Inverted Output | Complementary active-low pulse; enables differential signaling or dual-gate control |
| VCC | Power Supply | +5 V ±5% supply; decoupling capacitor required near pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Pulse Widths | Five discrete widths (50/100/150/200/250 ns) selected via static logic inputs - eliminates need for external RC timing networks |
| Dual Complementary Outputs | Simultaneous true and inverted pulses - enables push-pull laser driver control or redundant signal paths |
| Low-Power CMOS Design | Typical ICC = 35 mA at min period - reduces thermal load and simplifies power delivery in dense PCB layouts |
| Stable Width Accuracy | ±5% or ±2 ns tolerance over temperature - meets tight jitter budgets in optical servo loops |
| Auto-Insertable Packaging | 8-pin SOIC footprint - supports automated assembly and rework without lead bending or spacing issues |
Applications
| Magneto-Optical Disk Write Control | Laser Diode Pulse Modulation |
|---|---|
Use Scenario: Precise laser power gating during magnetic domain writing on MO media to prevent thermal damage and ensure bit fidelity. IC Role / Device Role / Timing Role: One-shot pulse generator setting exact ON-time for laser diode driver enable signal. Use Value: 250 ns max width with ±2 ns tolerance enables sub-micron track placement accuracy and consistent ablation depth. | Use Scenario: Driving high-speed laser diodes in barcode scanners requiring variable pulse durations for different scan distances. IC Role / Device Role / Timing Role: Programmable width source for modulating laser current pulse duration based on host controller configuration. Use Value: Five factory-trimmed widths eliminate calibration firmware and reduce BOM count versus discrete RC solutions. |
| Digital Logic Timing Calibration | Test Equipment Pulse Generation |
Use Scenario: Generating known-width strobes to verify setup/hold margins of high-speed latch circuits during board-level validation. IC Role / Device Role / Timing Role: Stable, repeatable reference pulse source for timing margin analysis. Use Value: Intrinsic delay ≤10 ns and width repeatability <2 ns allow sub-nanosecond measurement resolution. | Use Scenario: Embedded pulse generation in automated test fixtures for validating response time of opto-isolators and fast-switching MOSFETs. IC Role / Device Role / Timing Role: Compact, programmable timing element replacing bulky function generators in benchtop hardware. Use Value: SOIC packaging and 5 V compatibility simplify integration into compact test jigs without level-shifting circuitry. |
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-250+ | Same electrical specs and programming logic, but in 8-pin DIP (300-mil) package | Preferred for through-hole prototyping or legacy repair; incompatible with SMT production lines | Select DS1040M-250+ only when manual assembly or socket-based testing is required |
| MAX7360EPA+ | Single-channel, fixed 250 ns width; no programming pins; higher supply voltage range (2.7–5.5 V) | Lacks width flexibility; suited for cost-sensitive, single-width applications with mixed-voltage systems | Choose MAX7360EPA+ only if programmability is unnecessary and 2.7 V operation is mandatory |
Compared with DS1040M-250+ and MAX7360EPA+, the DS1040Z-250+ uniquely combines surface-mount readiness, full 3-bit width selection, and guaranteed 5 V performance-making it optimal for volume-manufactured optical storage subsystems requiring layout efficiency and timing precision.
Availability
DS1040Z-250+ is available at Aetrix Electronics and suitable for magneto-optical storage systems, laser diode modulation circuits, digital timing calibration fixtures, and automated test equipment requiring stable component supply and long-term obsolescence management.
Supply support for DS1040Z-250+ 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, silicon-based replacement of hybrid pulse generators in optical data storage and instrumentation systems.
FAQ
What is the maximum pulse width supported by the DS1040Z-250+?
The DS1040Z-250+ supports a maximum pulse width of 250 ns, corresponding to the binary code '111' applied to programming pins P2–P0. This value is factory-trimmed and guaranteed within ±5% or ±2 ns, whichever is greater, across 0°C to 70°C ambient conditions. The DS1040Z-250+ does not support widths beyond 250 ns - wider pulses require alternative part numbers such as DS1040-500.
Does the DS1040Z-250+ require external components for basic operation?
No, the DS1040Z-250+ operates autonomously with only a +5 V supply, ground, and trigger input. No external resistors or capacitors are needed for timing generation. A 0.1 µF ceramic decoupling capacitor between VCC and GND is recommended near the device for noise suppression, but it is not required for functional operation of the DS1040Z-250+.
Can the DS1040Z-250+ drive standard TTL logic directly?
Yes, each output of the DS1040Z-250+ is rated to drive up to five 74LS loads under standard conditions (VCC = 5.0 V, TA = 25°C). This capability allows direct interface with legacy TTL families without level-shifting or buffering. The DS1040Z-250+ maintains valid logic levels across its full operating temperature range, ensuring reliable interoperability with 74LS devices.
What is the intrinsic delay of the DS1040Z-250+ and how is it measured?
The intrinsic delay (tD) of the DS1040Z-250+ is defined as the time between the 1.5 V point on the rising edge of the IN trigger and the 1.5 V point on the rising edge of the OUT pulse. It is guaranteed to be 0–10 ns under typical conditions (VCC = 5.0 V, TA = 25°C). This specification applies identically to both non-inverted and inverted outputs of the DS1040Z-250+.
Is the DS1040Z-250+ RoHS compliant and lead-free?
Yes, the DS1040Z-250+ is RoHS compliant and features lead-free terminations. The 'Z' suffix in the part number explicitly denotes compliance with EU RoHS Directive 2011/65/EU and JEDEC JS-001 standards. The device uses matte tin plating on its SOIC leads and meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), making it suitable for standard reflow profiles without baking.
DS1040Z-250+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Taps/Steps:
- 5
- Function:
- 1-Shot, Programmable
- Delay to 1st Tap:
- 50ns
- Tap Increment:
- 50 ns
- Available Total Delays:
- 250ns
- 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-250+ FAQ
1.How can I place an order for DS1040Z-250+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1040Z-250+ 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-250+ reliable?
The price and inventory of DS1040Z-250+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1040Z-250+ is usually 5 days.
3.What payment methods are accepted for DS1040Z-250+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1040Z-250+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1040Z-250+?
DS1040Z-250+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1040Z-250+ 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-250+?
For technical support, including DS1040Z-250+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1040Z-250+ requirements.
6.How does Aetrix verify that DS1040Z-250+ is sourced from the original manufacturer or authorized distributors?
All DS1040Z-250+ 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-250+ meets industry standards.
7.What is the process for return or replacement of DS1040Z-250+?
All DS1040Z-250+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1040Z-250+, 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-250+ part is unused and in its original packaging.
Return procedure for DS1040Z-250+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1040Z-250+ Tags
-
LTC6994CS6-1#TRMPBF
Analog Devices Inc.
-
LTC6994CDCB-1#TRMPBF
Analog Devices Inc.
-
LTC6994IS6-1#TRMPBF
Analog Devices Inc.
-
LTC6994IS6-1#TRPBF
Analog Devices Inc.
-
LTC6994IDCB-1#TRMPBF
Analog Devices Inc.
-
LTC6994IS6-2#TRMPBF
Analog Devices Inc.
-
LTC6994HS6-1#TRPBF
Analog Devices Inc.
-
LTC6994HS6-1#TRMPBF
Analog Devices Inc.
-
LTC6994HS6-2#TRMPBF
Analog Devices Inc.
-
LTC6994HDCB-2#TRMPBF
Analog Devices Inc.
-
LTC6994HDCB-1#TRMPBF
Analog Devices Inc.
-
DS1124U-25+T
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
