MAX9121EUE+

Drivers, Receivers, Transceivers Overview

The MAX9121EUE+ is a quad low-voltage differential signaling (LVDS) line receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +3.3V supply and supports data rates up to 500Mbps over controlled-impedance media of approximately 100Ω. The device accepts four LVDS differential inputs and translates them to LVTTL/LVCMOS outputs. Key electrical parameters include a propagation delay of 2.7ns maximum, a pulse skew of 300ps maximum, and a common-mode input range of 0.05V to 2.35V. It features fail-safe circuitry that sets the output high when inputs are open or undriven. The component is housed in a 16-pin TSSOP package and is specified for operation within a temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Flow-through pinout simplifies PCB layout and reduces crosstalk by separating LVDS inputs from LVCMOS outputs.
• Integrated fail-safe circuit forces the output high when inputs are open, undriven shorted, or parallel terminated.
• Wide common-mode input range accommodates ground potential differences and common-mode noise between driver and receiver.

Drivers, Receivers, Transceivers Applications

• Digital Copiers
• Laser Printers
• Cellular Phone Base Stations
• Network Switches/Routers
• Backplane Interconnect

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with system voltage levels and signal integrity requirements before procurement. Confirm RoHS compliance status through manufacturer datasheets. Check for any recent lifecycle changes or obsolescence notices directly from Analog Devices.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed LVDS reception with integrated termination options available in the MAX9122 variant. Consider the flow-through pinout for simplified board routing. Evaluate power consumption and propagation delay specifications against system timing constraints. Ensure the operating temperature range meets environmental requirements.

Drivers, Receivers, Transceivers Part Context

The MAX9121EUE+ belongs to the MAX9121/MAX9122 family of quad LVDS line receivers. It is designed for high-speed, low-power applications requiring reliable data transmission over controlled-impedance media. The device complements other interface solutions by providing robust signal translation from differential LVDS to single-ended logic levels.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet notes pin compatibility with the DS90LV048A. Verify functional equivalence and parameter alignment before substitution. No other direct substitutes are explicitly confirmed in the provided documentation.

Drivers, Receivers, Transceivers FAQ

Does the MAX9121EUE+ have integrated termination resistors?

No, the MAX9121 requires external termination resistors. The MAX9122 variant features integrated termination resistors.

What is the maximum data rate supported by the MAX9121EUE+?

The device is guaranteed to receive data at speeds up to 500Mbps.

How does the fail-safe feature operate?

The fail-safe circuit sets the output high when the inputs are open, undriven and shorted, or undriven and parallel terminated.