HXR45100-DNU

Overview

The HXR45100-DNU is a single-channel linear Trans-Impedance Amplifier (TIA) belonging to the Optical Receiver Transmitter Array (ORTA) family. It serves as an extension of the HXR44100, designed for low-power applications with single-ended input. The device operates on a 3.3V or 2.9V supply to minimize power consumption. It features exceptionally low input-referred noise density and wide input optical power range. The TIA provides excellent linearity up to 3mA overload and high bandwidth. Designed with a patented adaptive biasing scheme, it pairs with a PIN detector to form compact Receiver Optical Sub-Assemblies (ROSA) for next-generation 400G optical transceivers using 53Gbaud PAM4 modulation.

Feature Summary

• Patented adaptive biasing scheme for optimized performance
• Low power operation compatible with 3.3V and 2.9V supplies
• High bandwidth and excellent linearity up to 3mA overload
• Exceptionally low input referred noise density

Applications

• Compact linear Receiver Optical Sub-Assembly (ROSA) design
• Next-generation 400G optical transceivers
• Advanced modulation schemes utilizing 53Gbaud PAM4 data rates

Procurement Notes

Verify the specific suffix DNU against official Renesas documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure compatibility with the intended PCB layout and thermal management requirements for the ORTA family component. Cross-reference the part number with current datasheets to confirm availability and any potential lifecycle changes.

Selection Notes

Select this component when designing high-speed optical receivers requiring low noise and high linearity for 400G applications. The HXR45100 is suitable for systems utilizing 53Gbaud PAM4 modulation. Consider its low-power supply options and integrated adaptive biasing for efficient ROSA designs. Verify that the single-ended input configuration aligns with the system architecture.

Part Context

The HXR45100 is part of the Optical Receiver Transmitter Array (ORTA) product family from Renesas Electronics. It extends the capabilities of the HXR44100 linear TIA. This series targets the demanding requirements of modern high-speed optical interconnects, specifically focusing on reducing power consumption while maintaining signal integrity for advanced data center applications.

Replacement Considerations

The HXR45100 is an extension of the HXR44100. Verify if the HXR44100 meets all performance requirements, particularly regarding bandwidth and linearity limits. No other direct substitutes are documented in the provided source material.