Gennum's GN1250L is a fully integrated limiting amplifier, providing wideband, low noise post-amplification, aimed primarily at 10GE and 8.5G Fibre Channel systems. The device may also be used in any Telecom application with input data rates up to 11.3 Gb/s.

The device is designed with differential I/Os and has signal levels compatible with Gennum's GN1052 transimpedance amplifiers.

DC offset compensation is provided on chip with no external components required. Optimum performance is provided by differential connections, but with appropriate terminations the device can also be used in single-ended mode if required by the application.

• Single +3.3 V supply
• Power dissipation = 140 mW (typ)
• Noise Figure 13 dB (typ)
• Small signal gain = 33.7 dB differential (typ)
• On-chip 50Ω input and output terminations
• Bandwidth (-3 dB) = 14.7 GHz (typ)
• Maximum input level of 1.1 Vpk-pk differential
• Limiting output level of 660 mVpk-pk differential
• Loss of signal functionality
• Single-ended or differential operation
• Operating ambient temperature range -40 to +85°C

• SONET/SDH-based transmission systems, test equipment and modules
• OC-192 fibre optic modules
• 10 Gigabit Ethernet
• Serial Data Systems up to 11.3 Gb/s
• Fibre Channel
• Wideband RF gain block

Application Diagrams

• Optical Transceiver

Contact Gennum for datasheet and other downloads.

Phone: +1 (905) 632-2999, x4113
Fax: +1 (905) 332-6731
Email: datacomsales@gennum.com