With an intrinsic input referred noise level of just 85nA, the PHY1096 transimpedance amplifier offers the world’s lowest noise performance at 2.5Gbps and has been designed to meet GPON Class B+ requirements with sensitivity better than –30dBm when using a PIN photodiode.
The PHY1096 is based on a pure CMOS process that operates from a 3.3V power supply. It integrates a 34kΩ transimpedance low noise front-end amplifier, automatic gain control and a highly stable output stage.
An output is also provided which can be used to implement a signal strength monitor circuit. For ease of interfacing, this is designed to sink or source a current equal to the PIN photodiode current. The PHY1096 is available in die form for mounting on a header to create a ROSA when combined with optics and photodiode. Operating temperature range is –40ºC to +85ºC.
The PHY1096 high sensitivity transimpedance amplifier from Phyworks is priced at $2.00USD in volume.