Analog Devices Inc./Maxim Integrated DS1100M-50+

Overview

DS1100M-50+ from Maxim Integrated is a 5-tap silicon delay line IC delivering precise, fixed delays of 10ns, 20ns, 30ns, 40ns, and 50ns per tap, operating at 5V with ±4ns delay tolerance over -40°C to +85°C, and capable of driving up to 10 LS-TTL loads - used in digital timing alignment, pulse shaping, and clock deskew in test equipment and industrial control systems.

For engineers reviewing the DS1100M-50+ datasheet, DS1100M-50+ pinout, DS1100M-50+ application, or DS1100M-50+ equivalent, key selection considerations include tap delay accuracy across temperature, TTL/CMOS compatibility, low-power CMOS operation, SO-8 vs. µMAX-8 package trade-offs, and replacement suitability for legacy DS1000-series hybrid delay lines.

Technical Context

The DS1100M-50+ implements an all-silicon delay architecture with five equally spaced, fixed-delay taps referenced to a single input signal; each tap reproduces both leading and trailing edges with matched precision under 5V ±5% supply. Delay values are factory-trimmed and specified with ±4ns absolute tolerance over full industrial temperature range.

It features TTL/CMOS-compatible input thresholds (VIH ≥ 2.2V, VIL ≤ 0.8V), low active current (30–50mA typical), and robust solderability (vapor-phase, IR, wave). Input-to-output propagation delay variation is unidirectional across taps - if one tap slows, all slow proportionally - ensuring monotonic timing behavior critical for phase-aligned multi-tap applications.

Key Specifications

Pinout & Package

DS1100M-50+ is housed in an 8-pin µMAX® package (U8+1 outline, 3mm × 3mm footprint), compatible with standard SO-8 land patterns via adapter design but requiring µMAX-specific reflow profile due to thermal mass differences.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar delay line applications.

Compared with DS1100Z-50+, the DS1100M-50+ saves 60% board area and improves thermal response but requires µMAX-specific reflow; versus DS1000S-50+, it delivers superior delay stability, lower power, and extended temperature qualification - making it the preferred choice for new industrial designs.

Availability

DS1100M-50+ is available at Aetrix Electronics and suitable for test instrumentation, industrial PLC timing, digital logic deskew, and PWM dead-time control requiring stable component supply and guaranteed long-term sourcing.

Supply support for DS1100M-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 (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications, emphasizing reliability, integration, and performance.

The DS1100 series belongs to Maxim's timing and delay product line, engineered specifically for deterministic, low-jitter digital signal delay in measurement, control, and synchronization systems - replacing aging hybrid solutions with monolithic silicon.

FAQ

What is the exact delay value for each tap of the DS1100M-50+?

The DS1100M-50+ provides five equally spaced nominal delays: TAP 1 = 10ns, TAP 2 = 20ns, TAP 3 = 30ns, TAP 4 = 40ns, and TAP 5 = 50ns. These values are factory-trimmed and specified with ±4ns tolerance over the full -40°C to +85°C industrial temperature range at 5V supply, as confirmed in Table 1 of the official DS1100 datasheet.

Is the DS1100M-50+ pin-compatible with the DS1100Z-50+?

No - while both share identical pin functions (IN, TAP1–TAP5, VCC, GND), the DS1100M-50+ uses an 8-pin µMAX package (3mm × 3mm) and the DS1100Z-50+ uses an 8-pin SO package (150 mil width). Their footprints and reflow profiles differ; direct PCB substitution requires layout modification unless using an adapter board.

Does the DS1100M-50+ support both rising and falling edge delays with equal accuracy?

Yes - the DS1100M-50+ is explicitly designed to reproduce both leading and trailing edges with equal precision, as stated in the General Description and verified in AC Electrical Characteristics (tPLH and tPHL parameters). This ensures consistent pulse width preservation across all five taps, critical for PWM and clock distribution applications.

What load drive capability does the DS1100M-50+ provide per tap?

Each tap of the DS1100M-50+ can drive up to 10 LS-TTL loads, supported by a low-level output current (IOL) of 12mA and high-level output current (IOH) of -1mA, as specified in the DC Electrical Characteristics table. This eliminates the need for external buffers in most standard logic interfacing scenarios.

Can the DS1100M-50+ operate outside the 5V supply range?

No - the DS1100M-50+ is rated for 4.75V to 5.25V supply only. Absolute maximum ratings specify -0.5V to +6.0V on any pin, but functional operation outside the 5V ±5% range is not guaranteed; delay accuracy, drive strength, and input thresholds degrade outside this window per the datasheet's DC and AC specifications.