Analog Devices Inc./Maxim Integrated MAX9376EUB+

Overview

The MAX9376EUB+ from Maxim Integrated is a fully differential, high-speed dual-level translator IC supporting up to 2GHz signal rates; one channel converts LVDS/anything-to-LVPECL, the other LVDS/anything-to-LVDS; features 421ps typical propagation delay, 30ps max pulse skew, and operates from +3.3V over –40°C to +85°C in a 10-pin µMAX package for backplane routing and telecom line-card interfaces.

For engineers reviewing the MAX9376EUB+ datasheet, MAX9376EUB+ pinout, MAX9376EUB+ application, or MAX9376EUB+ equivalent, this page delivers verified electrical specs, real-world termination guidance, differential I/O role mapping, and validated alternatives for high-speed signal integrity design in DSLAMs, WAN routers, and optical line terminals.

Technical Context

The MAX9376EUB+ implements two independent, fully differential translation paths: Channel 1 uses emitter-follower LVPECL outputs requiring 50Ω termination to (VCC – 2.0V), while Channel 2 employs current-steering LVDS outputs compliant with ANSI EIA/TIA-644 and requiring 100Ω differential termination. Both channels accept inputs across LVDS, LVPECL, HSTL, and CML standards with ≥100mV differential amplitude and 0.05V to (VCC – 0.05V) common-mode range.

Its bipolar process enables guaranteed 2GHz switching frequency with <2psRMS random jitter and temperature-compensated LVPECL output levels; supply current remains stable at 24–40mA across 0–1500MHz operation, and ESD protection exceeds 2kV HBM on all I/O pins.

Key Specifications

Pinout & Package

The MAX9376EUB+ is housed in a 10-pin µMAX® package (3mm × 3mm, 0.5mm pitch), thermally enhanced for high-speed operation with exposed pad grounded for optimal heat dissipation and signal integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed differential translation applications.

Compared with MAX9376EUB+, MAX9375EUB+ offers identical performance per channel but no LVDS output capability, while SN65LVDS387DGG trades bandwidth and latency for channel count and package compatibility-making MAX9376EUB+ optimal for dual-standard, 2GHz backplane bridging.

Availability

MAX9376EUB+ is available at Aetrix Electronics and suitable for DSLAM line cards, WAN router backplanes, and optical line terminals requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX9376EUB+ 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, mixed-signal, and high-speed interface ICs for demanding industrial, communications, and computing applications.

The MAX9376EUB+ belongs to Maxim's high-speed interface product line, engineered specifically for differential signal translation in telecom infrastructure where jitter, skew, and multi-standard interoperability are critical.

FAQ

What signaling standards does the MAX9376EUB+ support on its inputs?

The MAX9376EUB+ accepts LVDS, LVPECL, HSTL, and CML differential inputs with ≥100mV amplitude and 0.05V to (VCC – 0.05V) common-mode range. Its "anything-to" architecture means it reliably translates any differential signal meeting those voltage criteria-no configuration or biasing is needed. This flexibility makes MAX9376EUB+ ideal for heterogeneous backplane environments where multiple standards coexist.

How should the LVPECL outputs of the MAX9376EUB+ be terminated?

The MAX9376EUB+ LVPECL outputs (OUT1, OUT1) require 50Ω resistive termination to (VCC – 2.0V), not to VCC or GND. Using Thevenin-equivalent termination is acceptable if it replicates that DC operating point. Mismatched termination causes distorted edges and degraded noise margins. MAX9376EUB+ datasheet Figure 3 and Applications Information section specify exact layout practices-including matched trace lengths and symmetric placement-to preserve the 30ps max pulse skew spec.

Can the MAX9376EUB+ drive a 100Ω differential load on its LVDS outputs?

Yes-the MAX9376EUB+ LVDS outputs (OUT2, OUT2) are designed for 100Ω ±1% differential termination, producing 250–450mV differential swing per the ANSI EIA/TIA-644 standard. Driving other loads (e.g., 90Ω or 132Ω) is permissible per datasheet guidance, but 100Ω delivers the specified VOD and timing performance. Deviations affect output voltage and rise/fall times, so MAX9376EUB+ must be validated in-system if nonstandard termination is used.

What is the supply current consumption of the MAX9376EUB+ across frequency?

The MAX9376EUB+ draws 24–40mA from its +3.3V supply, depending on operating conditions: 24mA min at low frequency with LVDS outputs loaded, 40mA typ across full 0–1500MHz range. This stable current profile simplifies thermal design and decoupling-unlike many high-speed translators whose ICC rises sharply with frequency. The MAX9376EUB+ maintains consistent power draw even at 2GHz, easing system-level power budgeting.

Does the MAX9376EUB+ require external components for basic operation?

Yes-two mandatory external components are required: (1) 0.1µF and 0.01µF ceramic capacitors from VCC to GND, placed as close as possible to pins 10 and 5 respectively; and (2) proper termination networks-50Ω to (VCC – 2.0V) for OUT1/OUT1, and 100Ω across OUT2/OUT2. No pull-ups, bias resistors, or level-shifters are needed. These external elements are essential for MAX9376EUB+ to meet its 2GHz, <2psRMS jitter, and 30ps skew specifications.