The HXR8204 Transimpedance Limiting Amplifier array is a member of IDT’s family of Optical Receiver Transmitter Array (ORTA) products targeted at the parallel optical links market. Together with a PIN detector array or discrete detectors, high-capacity, high-availability optical links can be designed for telecom and datacom applications. The 3.3V SiGe device integrates the transimpedance preamplifier, the limiting post-amplifier, and a versatile CML output stage for four optical channels.


  • 60mApp receiver sensitivity for 10^-12 BER at 28Gbps
  • Better than 2.4mApp overload
  • 141mW per channel power consumption
  • Adjustable output swing size and pre-emphasis in limiting mode and signal detect threshold
  • Independent RSSI
  • Optimized for isolated and common cathode photo-detector arrays from multiple vendors
  • Control lines accessible on both sides of the chip
  • QSFP MSA compliance




Type Title Date
Datasheet - Short-form PDF 74 KB
Datasheet Log in to Download PDF 1.19 MB
Product Change Notice PDF 134 KB
3 items

Design & Development