Analog Devices Inc./Maxim Integrated DS1040Z-150

Overview

DS1040Z-150 from Dallas Semiconductor (now Maxim Integrated) is a rising-edge-triggered, CMOS programmable one-shot pulse generator with five precise pulse width options, 150 ns maximum width, ±5% or ±2 ns width tolerance, and dual inverting/non-inverting outputs. It serves as a timing control element in laser power modulation for magneto-optical disk read/write systems.

For engineers reviewing the DS1040Z-150 datasheet, DS1040Z-150 pinout, DS1040Z-150 application, or DS1040Z-150 equivalent, key selection considerations include programmable width resolution (30–150 ns steps), intrinsic delay ≤10 ns, TTL/CMOS compatibility, and SOIC-8 packaging for surface-mount integration.

Technical Context

The DS1040Z-150 implements a parallel-programmed monostable multivibrator architecture using all-silicon CMOS logic. Pulse width is selected via three binary-coded programming pins (P0–P2), with fixed width mapping per part number - DS1040Z-150 delivers max width = 150 ns, min width = 30 ns, and step increments of 30 ns (30/60/90/120/150 ns).

It features dual complementary outputs capable of driving up to five 74LS loads each, intrinsic propagation delay ≤10 ns from trigger edge to output edge, and operates at VCC = 4.75–5.25 V with active current ≤75 mA at minimum period. Temperature-induced width variation is ≤±(1 ns or 3%) over 0°C to 70°C.

Key Specifications

Pinout & Package

DS1040Z-150 is housed in an 8-pin small-outline integrated circuit (SOIC) package with 150-mil body width and standard JEDEC MS-012AC footprint. Pin 1 is located at the notch end, with counterclockwise numbering.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable one-shot applications.

Compared with DS1040M-150 and MAX7360EPA+, the DS1040Z-150 offers optimal balance of SMT compatibility, zero-software timing control, and cost-effective fixed-width precision - ideal for volume-manufactured optical storage and industrial timing modules where simplicity and repeatability are prioritized over programmability.

Availability

DS1040Z-150 is available at Aetrix Electronics and suitable for magneto-optical drive manufacturing, industrial sensor synchronization, and test equipment calibration requiring stable component supply and long-term obsolescence management.

Supply support for DS1040Z-150 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, now part of Maxim Integrated (a subsidiary of Analog Devices), specialized in precision timing, memory, and mixed-signal ICs for industrial and embedded applications.

The DS1040 series was designed specifically for high-reliability, fixed-width pulse generation in optical storage, disk drive, and instrumentation systems where hybrid timing solutions posed reliability and cost challenges.

FAQ

What is the maximum pulse width supported by the DS1040Z-150?

The DS1040Z-150 supports a maximum pulse width of 150 ns, with four additional selectable widths: 30 ns, 60 ns, 90 ns, and 120 ns. These values are fixed per part number and determined by the logic states applied to programming pins P0–P2. The 150 ns value is guaranteed within ±5% or ±2 ns, whichever is greater, across the full operating temperature range (0°C to +70°C). This specification is confirmed in Table 1 of the official DS1040 datasheet.

Does the DS1040Z-150 require external components to operate?

No, the DS1040Z-150 operates autonomously with no external timing components. It uses internal all-silicon CMOS circuitry to generate precise pulse widths based solely on the states of its three programming pins (P0–P2). A 0.1 µF ceramic bypass capacitor is recommended between VCC and GND for noise suppression, but no resistors or capacitors are needed for width definition or triggering. This eliminates drift and aging issues associated with RC-based one-shots.

Can the DS1040Z-150 be used with 3.3 V logic systems?

The DS1040Z-150 is specified for VCC = 4.75 V to 5.25 V and is not rated for 3.3 V operation. Its input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and output drive levels are optimized for 5 V TTL/CMOS systems. Direct connection to 3.3 V controllers may result in marginal noise margins or undefined behavior. For 3.3 V environments, level-shifting circuitry or a 3.3 V–compatible alternative like the MAX7360EPA+ should be considered instead of the DS1040Z-150.

What is the intrinsic propagation delay of the DS1040Z-150?

The intrinsic delay (tD) of the DS1040Z-150 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 signal. Per the datasheet AC Electrical Characteristics table, tD is guaranteed to be no more than 10 ns (typical 5 ns) at TA = 25°C and VCC = 5.0 V. This low, deterministic delay enables tight synchronization in real-time optical control loops without added compensation.

Is the DS1040Z-150 RoHS compliant?

Yes, the DS1040Z-150 manufactured by Maxim Integrated (post-Dallas acquisition) meets RoHS Directive 2011/65/EU requirements. It contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE). The SOIC-8 package uses matte tin lead finish and halogen-free molding compound. Compliance documentation is available through Maxim's official product change notifications and material declarations.