Qorvo's TGA4874 is a quad channel fully differential state of the art TIA with integrated AGC designed for coherent DP-QPSK receivers. It features a very low total harmonic distortion which is not only crucial for DP-QPSK, but also enables higher-level QAM applications. In addition, the TGA4874 has compensating circuits that allow it to handle large DC input currents as well as large offsets between these currents. This is important for colorless applications. The TGA4874 is manufactured in a reliable highspeed SiGe process that combines excellent performance together with cost-effectiveness.
|Differential Transimpedance Gain(ohm)||100 to 6,800|
|Differential Output Vpp(mV)||200 to 900|
|Equivalent Input Noise(pA/rtHz)||20|
This product appears in the following application block diagrams: