Analog Devices Inc./Maxim Integrated MXD1005UA200

Overview

MXD1005UA200 from Maxim Integrated is a 5-tap silicon delay line in an 8-pin µMAX package, delivering precisely spaced 200ns nominal delays per tap (tPLH/tPHL), ±2ns or ±3% accuracy, TTL/CMOS-compatible outputs, and 17mA supply current at +5V. It serves as a timing alignment element in clock synchronization and digital system signal conditioning.

For engineers reviewing the MXD1005UA200 datasheet, MXD1005UA200 pinout, MXD1005UA200 application, or MXD1005UA200 equivalent, key selection factors include tap delay accuracy, temperature-voltage stability, output drive capability (10 × 74LS loads), µMAX footprint compatibility with DS1005, and leading/trailing-edge delay matching.

Technical Context

The MXD1005UA200 implements a monolithic silicon delay architecture with five fixed-tap outputs derived from a single input signal, where each tap delay is set to 20%, 40%, 60%, 80%, and 100% of the nominal 200ns maximum delay. All taps exhibit unilateral drift-delay shifts uniformly across temperature (±1.5ns or ±4% typical over 0°C to +70°C) and supply voltage (4.75V–5.25V).

It operates at VCC = +5.0V ±5%, supports input pulse widths down to 500ns, and maintains specified timing accuracy at both rising (tPLH) and falling (tPHL) edges measured at 1.5V thresholds. Output loading directly impacts edge rate and thus delay value, requiring design consideration for capacitive load and logic family interface.

Key Specifications

Pinout & Package

MXD1005UA200 is housed in an 8-pin µMAX package (3mm × 3mm, 0.5mm pitch), pin-compatible with 8-pin SO and DIP variants. The µMAX footprint enables high-density PCB layout while maintaining mechanical and thermal compatibility with legacy DS1005 sockets.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1005N-200 and MXD1005SE200, the MXD1005UA200 delivers identical 200ns delay performance in the smallest package with lowest active current-making it optimal for space-constrained, thermally sensitive, or battery-backed timing applications where µMAX assembly is supported.

Availability

MXD1005UA200 is available at Aetrix Electronics and suitable for clock synchronization, digital signal alignment, legacy TTL system timing, and test equipment pulse shaping requiring stable component supply, guaranteed industrial temperature operation, and µMAX footprint compatibility.

Supply support for MXD1005UA200 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.

The MXD1005 series was designed as a drop-in silicon replacement for hybrid delay lines like the DS1005, targeting cost-sensitive, reliability-critical timing functions in digital systems where precise, stable, and repeatable inter-signal delays are essential.

FAQ

What is the exact delay value for each tap of the MXD1005UA200?

The MXD1005UA200 provides five fixed delays relative to the input signal: TAP1 = 40ns, TAP2 = 80ns, TAP3 = 120ns, TAP4 = 160ns, and TAP5 = 200ns, all measured as tPLH/tPHL at 1.5V thresholds under VCC = +5V and TA = +25°C. These values scale linearly with the part number's 200ns designation and maintain ±2ns or ±3% accuracy across operating conditions.

Does the MXD1005UA200 support both rising and falling edge delays?

Yes, the MXD1005UA200 guarantees matched accuracy for both edges: tPLH (input-to-tap rising edge) and tPHL (input-to-tap falling edge) are each specified to ±2ns or ±3%. This dual-edge precision allows the MXD1005UA200 to align clock signals, strobes, and data valid windows in systems requiring tight setup/hold timing control.

Can the MXD1005UA200 drive modern CMOS loads like 74HC or 74AHC?

The MXD1005UA200 is rated to drive up to ten 74LS loads, which corresponds to ~1.6mA per output. While it can interface with 74HC/74AHC inputs (typically <1µA leakage), its output drive strength is optimized for legacy TTL. For heavy capacitive loads (>20pF) or high-speed CMOS, verify signal integrity with oscilloscope measurements - the MXD1005UA200 itself remains functional but may require external buffering in such cases.

Is the MXD1005UA200 pin-compatible with the DS1005 series?

The MXD1005UA200 shares identical pin functions with the DS1005 in the 8-pin DIP/SO/µMAX configurations (IN, TAP1–TAP5, VCC, GND), though pin numbering differs between packages. In the 8-pin µMAX, MXD1005UA200 uses pins 1–8 as IN, TAP1, TAP2, GND, TAP3, TAP4, VCC, TAP5 - making it a functional and layout-compatible upgrade path when migrating from DS1005N-200 in space-constrained designs.

What is the power-up behavior of the MXD1005UA200?

The MXD1005UA200 exhibits a defined power-up time (tPU) of 100ms, during which outputs remain in a high-impedance or indeterminate state until internal biasing stabilizes. To ensure predictable startup, apply VCC before asserting the input signal, and allow ≥100ms settling before relying on tap outputs - this behavior is inherent to the MXD1005UA200's internal circuitry and documented in its absolute maximum ratings section.