MAX9123EUE+

Drivers, Receivers, Transceivers Overview

The MAX9123EUE+ is a quad low-voltage differential signaling (LVDS) line driver manufactured by Analog Devices Inc./Maxim Integrated. It translates four LVTTL/LVCMOS inputs to LVDS outputs compliant with the ANSI TIA/EIA-644 standard. The device supports data rates up to 800Mbps (400MHz) over controlled impedance media of approximately 100 Ω. It operates from a single +3.3V supply and functions within an ambient temperature range of -40°C to +85°C. The component is housed in a 16-pin TSSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Flow-through pinout separates LVTTL/LVCMOS inputs from LVDS outputs to simplify PCB layout and reduce crosstalk.
• Pin-compatible with DS90LV047A for direct replacement in existing designs.
• Capable of setting all four outputs to a high-impedance state via enable inputs to achieve ultra-low-power consumption.

Drivers, Receivers, Transceivers Applications

• Digital copiers
• Laser printers
• Cell phone base stations
• Add drop muxes
• Network switches/routers

Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix matches the required package type, as the EUE suffix specifically denotes the 16-pin TSSOP variant. Confirm the temperature grade aligns with industrial requirements (-40°C to +85°C). Ensure the datasheet revision corresponds to the specific manufacturing lot for accurate electrical parameter validation before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad LVDS transmitter with flow-through pinout is required to minimize trace length and crosstalk. It is suitable for applications needing guaranteed 800Mbps performance on 100Ω transmission lines. Consider the single +3.3V supply constraint and ensure the system design accommodates the specified propagation delay and skew characteristics for signal integrity.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX9123 family of LVDS drivers. It serves as the transmitter counterpart to receivers like the MAX9121 and MAX9122. The device is designed for high-speed point-to-point communication where low power and low noise are critical. It complements other Maxim integrated circuits in serial link architectures.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX9123EUE+ is pin-compatible with the DS90LV047A. Designers can substitute this part directly into layouts originally designed for the DS90LV047A without requiring schematic or board modifications, provided voltage and temperature specifications are met.

Drivers, Receivers, Transceivers FAQ

How does the MAX9123 handle disabled states?

The device features two enable inputs (EN and EN_bar). When configured correctly, these inputs can force all four outputs into a high-impedance state, reducing power consumption to an ultra-low level.

What is the maximum operating frequency?

The MAX9123 is guaranteed to transmit data at speeds up to 800Mbps, which corresponds to a maximum operating frequency of 400MHz.

Does the device require external termination resistors?

Yes, the MAX9123 is a current-steering device that requires a resistive load to terminate the signal. It is optimized for point-to-point interfaces with 100Ω termination resistors at the receiver inputs.