GENERAL DESCRIPTION
The ADN2882 is a 3.3 V high gain SiGe transimpedance amplifier (TIA) which converts the small signal current of a photo detector to a large differential voltage output. The ADN2882 features a typical 475 nA input-referred noise, enabling an optical sensitivity of −22 dBm (0.85 A/W PIN). With a bandwidth of 3.5 GHz, the ADN2882 allows a data rate operation up to 4.25 Gbps. Typical power dissipation is 80 mW.

FEATURES
   Bandwidth: 3.5 GHz
   Input noise current density: 8 pA/√Hz
   Optical sensitivity
      −22.0 dBm1
      −20.4 dBm2
   Differential transimpedance: 3700 V/A
   Power dissipation: 80 mW
   Differential output swing: 260 mV p-p
   Input overload current: 5.6 mA p-p
   On-chip RSSI function
   Low frequency cutoff: 12 kHz
   On-chip PD filter: RF = 200 Ω, CF = 20 pF
   Die size: 0.7 mm × 1.2 mm

APPLICATIONS
   4.25 Gbps optical receivers
   GbE/FC optical receivers
   SFF-8472-compliant receivers
   PIN/APD-TIA receiver optical subassemblies