At the European Conference on Optical Communications(ECOC 2012)in Amsterdam,The Netherlands(17-19 September),M/A-COM Technology Solutions Inc of Lowell,MA,USA(which makes analog semiconductors,components and subassemblies for RF,microwave and millimeter-wave applications)has introduced two transimpedance amplifiers(TIAs)for 100GbE ROSA and 100G DP-QPSK applications.
MATA-002902 is a 28Gbps Dual Chanel Limiting TIA,ideal for 100G Ethernet ROSA(28 Gbps x 4)receivers.It operates from a+3.3V power supply and has a typical bandwidth of 21 GHz.Available as a die,it features automatic DC offset compensation while the input current ranges from 0.05mApp to 2.5mApp.
MATA-038032A is a dual channel differential linear TIA with AGC for 100G DP-QPSK(32 Gbps x4)receivers.Each channel has differential input and output.MATA-038032A offers both manual and automatic gain control modes;in manual mode the gain can be controlled from 200 to 5.0K differential via an external pin.In automatic mode,the gain is automatically adjusted to provide a constant output voltage.The TIA provides a linear amplification for current levels from 0.1mApp to 2mApp differential and has adjustable bandwidth between 17 and 25 GHz.
