Analog Devices Inc./Maxim Integrated MAX9376EUB

Overview

The MAX9376EUB from Maxim Integrated is a fully differential dual-level translator IC with one LVDS/anything-to-LVPECL channel and one LVDS/anything-to-LVDS channel, supporting signal rates up to 2GHz, 421ps typical propagation delay, and operation from a single +3.3V supply across -40°C to +85°C for high-speed backplane routing.

For engineers reviewing the MAX9376EUB datasheet, MAX9376EUB pinout, MAX9376EUB application, or MAX9376EUB equivalent, key selection considerations include differential input compatibility (LVDS/LVPECL/HSTL/CML), LVPECL output termination at (VCC − 2.0V), LVDS output compliance with ANSI EIA/TIA-644, and guaranteed 2GHz switching frequency under load.

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 requiring 100Ω differential termination. Both channels accept inputs with ≥100mV differential amplitude and 0.05V to (VCC − 0.05V) common-mode range.

Its bipolar process enables sub-500ps propagation delays with ≤30ps pulse skew and ≤2ps_RMS random jitter at 1.34GHz. Input compatibility spans LVDS, LVPECL, HSTL, and CML standards without external level-shifting, and output drive strength meets transmission-line requirements for point-to-point 50Ω and 100Ω interconnects.

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 internally per Maxim's land pattern guidelines.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-format differential translation applications.

Compared with MAX9375EUB+ and SN65LVDS387DGK, the MAX9376EUB uniquely integrates both LVPECL and LVDS outputs in one 10-pin package, delivering full dual-standard translation without sacrificing speed, jitter, or thermal performance-enabling compact, high-fidelity backplane interfaces where protocol coexistence is mandatory.

Availability

MAX9376EUB is available at Aetrix Electronics and suitable for high-speed backplane routing, DSLAM interface design, and WAN router fabric development requiring stable component supply, long-term obsolescence management, 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF solutions for demanding industrial, communications, and computing applications.

The MAX9376EUB belongs to Maxim's high-speed interface translator product line, engineered specifically for seamless interoperability between LVDS, LVPECL, HSTL, and CML signaling domains in telecom infrastructure and datacom equipment.

FAQ

What is the maximum supported input frequency for the MAX9376EUB?

The MAX9376EUB is guaranteed to operate at up to 2.0GHz for both its LVPECL and LVDS output channels when differential output voltage meets minimum thresholds (VOH − VOL ≥ 250mV for LVPECL; VOD ≥ 250mV for LVDS). This specification is validated across the full -40°C to +85°C temperature range and +3.0V to +3.6V supply range, making the MAX9376EUB suitable for OC-192 and 10GbE physical layer applications where deterministic high-speed translation is required.

How should the LVPECL outputs of the MAX9376EUB be terminated?

The MAX9376EUB LVPECL outputs (OUT1, OUT1) must be terminated with 50Ω resistors connected to (VCC − 2.0V), not to ground or VCC. This Thevenin-style termination establishes correct DC bias points for emitter-follower operation and ensures fast, clean transitions. Identical termination on both differential legs is mandatory to minimize distortion and skew; mismatched terminations degrade common-mode rejection and increase pulse skew beyond the specified 30ps maximum.

Does the MAX9376EUB support HSTL and CML inputs in addition to LVDS and LVPECL?

Yes, the MAX9376EUB explicitly supports HSTL and CML differential inputs alongside LVDS and LVPECL, as confirmed in its General Description and Detailed Description sections. Its inputs accept any differential signal within the supply rails with ≥100mV amplitude and 0.05V to (VCC − 0.05V) common-mode range-covering HSTL Class I/III and CML variants without external biasing. This broad compatibility is a core design feature of the MAX9376EUB, eliminating the need for signal conditioning circuitry in mixed-standard systems.

What is the typical supply current consumption of the MAX9376EUB at 3.3V?

At VCC = +3.3V, the MAX9376EUB draws 40mA typical supply current with LVDS outputs (OUT2, OUT2) loaded with a differential 100Ω termination, as specified in the DC Electrical Characteristics table. This value remains stable across frequency up to 1.5GHz per the Typical Operating Characteristics plot (MAX9376 toc01), confirming predictable power behavior in high-speed routing applications where thermal management is critical for signal integrity.

Is the MAX9376EUB pin-compatible with other devices in the MAX937x family?

No, the MAX9376EUB is not pin-compatible with other MAX937x variants such as the MAX9375EUB+ (single-channel LVDS-to-LVPECL) or MAX9377EUB+ (dual LVDS-to-LVPECL), despite sharing the same 10-pin µMAX package. Pin functions differ significantly-for example, the MAX9376EUB dedicates pins 3–4 to LVDS outputs and pins 8–9 to LVPECL outputs, whereas the MAX9375EUB+ uses those pins for additional inputs or GND. Board layout must be designed specifically for the MAX9376EUB pinout.