HXR45100-DNJ

Overview

The HXR45100-DNJ is a single-channel linear Trans-Impedance Amplifier (TIA) from the Optical Receiver Transmitter Array (ORTA) family. It serves as an extension of the HXR44100, designed for low-power operation with a 3.3V or 2.9V supply. The device provides exceptionally low input-referred noise density and wide input optical power range. It features excellent linearity up to 3mA overload and high bandwidth. Integrated with a PIN detector, it enables compact Receiver Optical Sub-Assembly (ROSA) designs for next-generation 400G optical transceivers using advanced modulation schemes at 53Gbaud PAM4 data rates.

Feature Summary

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

Applications

• Receiver Optical Sub-Assembly (ROSA) design
• Next-generation 400G optical transceivers
• Systems utilizing 53Gbaud PAM4 advanced modulation schemes

Procurement Notes

Verify the specific -DNJ suffix against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the intended 3.3V or 2.9V supply voltage requirements for your low-power application. Confirm that the component meets the necessary environmental standards for your target deployment.

Selection Notes

Select this TIA when designing compact ROSAs for high-speed optical links requiring low noise and high linearity. It is suitable for applications demanding low power consumption under 3.3V or 2.9V operation. Consider this part for systems utilizing PIN detectors and advanced modulation formats like 53Gbaud PAM4 in 400G transceiver modules.

Part Context

The HXR45100 belongs to the Optical Receiver Transmitter Array (ORTA) product family. It extends the capabilities of the HXR44100 single-ended input TIA. This series targets the evolving needs of high-bandwidth optical communication infrastructure, specifically focusing on energy-efficient and high-performance signal conditioning for modern data center interconnects.

Replacement Considerations

The HXR44100 is a related member of the same ORTA family. Verify functional equivalence and pinout compatibility before substitution. No other direct public substitute part numbers are confirmed.