The HXR32400 Transimpedance Amplifier with Limiting Output stage, 4th generation device is a lower power member of the family of Optical Receiver Transmitter Array (ORTA) products targeted at the 28Gbps parallel optical links market. Together with a PIN detector array or discrete detectors, high-capacity, high-availability optical 100GBase-CLR4 links can be designed for telecom and datacom applications. The SiGe device integrates the transimpedance preamplifier, the limiting post-amplifier and a versatile CML output stage for four optical channels.


  • 50uApp receiver sensitivity for 10-12 BER at 28Gbps
  • Greater than 2.4mApp overload
  • 100mW per channel power consumption with low power setting
  • Automatic Gain and Threshold Controls
  • Adjustable output swing size and pre-emphasis mode
  • Signal Detect Programmable threshold with SQUELCH function
  • Independent RSSI, Temperature monitor
  • Optimized for isolated and common cathode photo-detector arrays from multiple vendors
  • Control lines accessible on both sides of chip
  • QSFP MSA compliance

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Temp. Grade Carrier Type Buy Sample

Technical Documentation

Title Other Languages Type Format File Size Date
HXR32400 Product Brief Product Brief PDF 219 KB