GENERAL DESCRIPTION
The ADN2880 is a 3.3 V, high gain SiGe transimpedance amplifier (TIA). The TIA converts the small signal current of a photo detector into differential voltage output. The ADN2880 features a 315 nA typical input-referred noise, enabling an optical sensitivity of −24.2 dBm (0.85 A/W PIN). With a bandwidth of 2.5 GHz, the ADN2880 allows a data rate operation up to 3.2 Gbps. Typical power dissipation is approximately 70 mW.
FEATURES
Bandwidth: 2.5 GHz
Optical sensitivity: −24.2 dBm1
Differential transimpedance: 4400 V/A
Power dissipation: 70 mW
Differential output swing: 260 mV p-p
Input overload current: 4.3 mA p-p
On-chip RSSI function
Low frequency cutoff: 20 kHz
On-chip PD filter: RF = 200 Ω, CF = 20 pF
Die size: 0.7 mm × 1.2 mm
APPLICATIONS
3.2 Gbps or below optical receivers
SONET/GbE/FC optical receivers
SFF-8472-compliant receivers
PIN/APD-TIA receive optical subassemblies (ROSA)