2.5G Super TIA for PD

Product Overview
The HLR2S50 is a super high sensitivity CMOS transimpedance amplifier with automatic gain control. The AGC enables over 31 dB of dynamic operating range, resulting in a high performance TIA designed to replace avalanche photodiode (APD) based receivers in GPON applications with a cost effective PIN PD based solution.
The HLR2S50 is pad compatible with all popular industry TIAs whilst the small die size and optimal pad placement help to minimize cross-talk and provide superior performance by enabling orthogonal bonding of critical wire bonds. The HLR2S50 is designed to support photodiode capacitances ≤ 0.2pF for GPON applications. It is designed to be used with the internal photodiode (PK) bias only.
The HLR2S50 features a patented TIA transimpedance feedback resistor for lowest noise and improved sensitivity.
With a photodiode monitor function and designed to operate without the requirement for a VDD supply decoupling capacitor within the TOcan, the HLR2S50 offers the most flexible, high performance receiver solution up to 2.5 Gbps.

Main Features
 Typical -31.0 dBm sensitivity @2.5 Gbps, with 0.16 pF PIN PD (0.9 A/W, 10dB ER, BER 1E-10)
 Typical transimpedance: 75 kΩ
 Increased output swing at sensitivity means excellent signal quality into proceeding post amp & reduced x-talk for BOSA-on-board
 Internal regulated photodiode bias
 30kHz typical LFC @ sensitivity
 No internal TO-Can VDD supply decoupling capacitor required for typical operation
 Photodiode current monitor output – can be programmed to Sink or Source
 Single +3.3V supply
 -40°C to +95°C Operating temperature range

Applications
 GPON Transceivers
 BOSA-on-Board GPON ONU
 Turbo EPON transceivers
 SFF, SFP, PON Transceivers