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