1FEATURES
• 10 GHz Bandwidth
• 4.5 kΩ Differential Small Signal
Transimpedance
• 2.5 mAp-p Input Overload Current
• Received Signal Strength Indication (RSSI)
• 100 mW Typical Power Dissipation
• CML Data Outputs With On-Chip 50 Ω
Back-Termination
• On Chip Supply Filter Capacitor
• Single 3.3 V Supply
• Die Size: 940 × 1195 μm
• Case temperature operation: –40°C to 100°C

APPLICATIONS
• SONET OC-192
• SFP+ Optical Receivers
• 10× Fibre Channel Optical Receivers
• 10G Ethernet Receivers
• PIN Preamplifier-Receivers
• APD Preamplifier Receivers

DESCRIPTION
The ONET8531T is a high-speed and high-gain limiting-transimpedance amplifier, used in optical receivers with
data rates up to 12.5 Gbps. It features low input referred noise, 10 GHz bandwidth, 4.5 kΩ small signal
transimpedance, and a received signal strength indicator (RSSI).
The ONET8531T is available in die form, includes an on-chip VCC bypass capacitor and is optimized for
packaging in a TO can.
The ONET8531T requires a single +3.3V ± 10% supply and its power efficient design typically dissipates less
than 105 mW. The device is characterized for operation from –40°C to 100°C case (IC back side) temperature.