1FEATURES

• 9 GHz Bandwidth

• 2.4 kΩ Differential Small Signal Transimpedance

• -20dBm Sensitivity

• 0.95 μARMS Input Referred Noise

• 2.5 mAPP Input Overload Current

• Received Signal Strength Indication (RSSI)

• 90 mW Typical Power Dissipation

• CML Data Outputs with On-Chip 50Ω

Back-Termination

• On Chip Supply Filter Capacitor

• Single 3.3 V Supply

• Die Size: 870 μm × 1036 μm

APPLICATIONS

• 10G Ethernet

• 8G and 10G Fibre Channel

• 10G EPON

• SONET OC-192

• 6G CPRI and OBSAI

• PIN Preamplifier Receivers

• APD Preamplifier Receivers

DESCRIPTION

The ONET8521T is a high-speed, limiting transimpedance amplifier used in optical receivers with data rates up

to 11.3Gbps. It features low input referred noise, 9GHz bandwidth, 2.4kΩ small signal transimpedance, and a

received signal strength indicator (RSSI).

The ONET8521T is available in die form, includes an on-chip VCC bypass capacitor and is optimized for

packaging in a TO can.

The ONET8521T requires a single 3.3V ±10% supply and its power efficient design typically dissipates less than

90mW. The device is characterized for operation from –40°C to 100°C case (IC back side) temperature.