11.1 Gbps 3.3V Low Noise High Gain Transimpedance Amplifier

Manufactured by:

Replacement Parts

Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.

Product Details

The ADN2821 is a 10 Gbps high-performance SiGe Transimpedance Amplifier specifically designed for use in small form factor optical receivers. The ADN2821 series features low input referred noise current and a range of trans-impedance gains. 8GHz minimum bandwidth enables up to 11.1 Gbps operation; 1.1uA input referred noise current enables –19dBm sensitivity; +3.25dBm nominal operation at 10dB extinction ratio. For assembly in small form factor packages, the ADN2821 series integrates a photodiode filter RFCF network on-chip and features 25kHz low frequency cutoff with small 0.5nF external capacitor. The ADN2821 operates with a 3.3V ± 0.3V power supply and is available in die form.


  • Up to 11.1 Gbps Optical Modules
  • SONET/SDH OC-192/STM-64 and 10 GbE Receivers, Transceivers, Transponders