HXT14100-QUAL

Overview

The HXT14100-QUAL is a single-channel linear Trans-Impedance Amplifier (TIA) from Renesas' Optical Receiver Transmitter Array (ORTA) family, designed for next-generation 200G optical transceivers using 28GBaud PAM4 modulation. It operates with a 3.3V or 2.9V supply, achieving power consumption as low as 140mW per channel. The device features up to 5kΩ typical differential gain, wide adjustable output voltage swing, and linear operation up to 3mA peak-to-peak apparent signal envelope (AppSE) overload with internal Automatic Gain Control (AGC). It provides up to 30GHz typical bandwidth and 9pA/√Hz input-referred current noise density RSSI, LOS, and Rx disable functions are integrated. The component complies with IEEE 802.3 standards.

Feature Summary

• Patented adaptive biasing scheme for optimized performance
• Wide adjustable output voltage swing capability
• Integrated Automatic Gain Control (AGC) for linearity
• Supports industrial operating temperature range

Applications

• Design of compact linear Receiver Optical Sub-Assemblies (ROSA)
• Next-generation 200G optical transceivers
• 28GBaud PAM4 data rate applications

Procurement Notes

Verify the specific suffix against official documentation, as standard variants like HXR14100-DNJ are listed as obsolete. Confirm availability status directly with Renesas or authorized distributors, as stock levels fluctuate. Ensure the qualification grade matches project requirements. Check for lead-free compliance and package type specifications in the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this TIA when designing ROSA modules requiring high sensitivity and low power consumption for 56Gbps PAM4 Ethernet. Consider the 3.3V or 2.9V supply options based on system power constraints. Evaluate the 30GHz bandwidth and 9pA/√Hz noise density against link budget requirements. Ensure compatibility with PIN detectors for complete optical receiver solutions.

Part Context

The HXT14100 series belongs to Renesas' ORTA product family, which integrates optical receiver and transmitter components. This TIA complements PIN detectors to form complete optical sub-assemblies. It is part of a broader portfolio including laser drivers like the HXT44100, supporting high-speed optical communication infrastructure development.

Replacement Considerations

Standard variants such as HXR14100-DNJ and HXR14100-DNU are marked obsolete. Verify if HXT14100-QUAL serves as a direct functional replacement or a qualified alternative. Consult Renesas for current active part numbers and cross-reference electrical parameters to ensure compatibility with existing designs.