HXR5112A-DNT

Overview

The HXR5112A-DNT is a 12-channel Transimpedance Limiting Amplifier array from the Optical Receiver Transmitter Array (ORTA) family, designed for parallel optical links. Operating at data rates up to 14 Gbps with a maximum of 10.3 Gbps specified for sensitivity metrics, this SiGe device integrates transimpedance pre-amplifiers, limiting post-amplifiers, and CML output stages. It functions on a 3.3V supply with power consumption of 66mW per channel. The component provides 20µApp receiver sensitivity at 10^-12 BER and better than 1.0mApp overload capability. It operates within a temperature range of 0°C to +85°C and is supplied as a bare die measuring 2.05mm x 3.65mm.

Feature Summary

• Integrates twelve independent optical channels with versatile CML output stages for high-capacity datacom applications.
• Features adjustable output swing size, pre-emphasis in limiting mode, and configurable signal detect thresholds.
• Includes independent Receive Signal Strength Indicator (RSSI) for precise monitoring of each channel.
• Optimized for compatibility with isolated and common cathode photo-detector arrays from multiple vendors.

Applications

• IEEE 802.3ba Ethernet transceivers
• Infiniband QDR & FDR active cables
• Proprietary multi-channel optical modules

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the DNT designation indicates a bare die configuration. Confirm the operating temperature range aligns with system requirements, noting the standard commercial range of 0°C to +85°C. Ensure interface compatibility with the intended PIN detector arrays before finalizing procurement specifications.

Selection Notes

Select the HXR5112A-DNT when designing parallel optical links requiring twelve integrated channels with low power consumption. Consider the BNT variant if flip-chip assembly with solder bumps is preferred over the standard bare die format. Evaluate the need for independent RSSI and adjustable pre-emphasis features against specific link budget requirements.

Part Context

This component belongs to IDT’s ORTA product family, which targets the parallel optical links market. It is engineered to work alongside PIN detector arrays or discrete detectors to establish high-availability optical interconnects. The architecture combines linear amplification and limiting stages to support high-speed serial data transmission in dense module form factors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources for potential cross-references or updated product line replacements.