ADN2821:  11.1 Gbps 3.3V Low Noise High Gain Transimpedance Amplifier

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 ...More

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ADN2821:  11.1 Gbps 3.3V Low Noise High Gain Transimpedance Amplifier

Product Description

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.

Applications

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

    • Features

    • Bandwidth: 8GHz min
    • Input Noise Current Density: 12 pA/ root Hz
    • Differential Trans-impedance: 2 kΩ and 5 kΩ Options
    • Power Dissipation: 150 mW
    • Differential Output Swing: 400mV pk-pk
    • Input Overload: +3.25 dBm @ 10 dB ER
    • Low-F cutoff: 25 kHz w/CLF=0.5nF
    • Optional On-Chip PD filter: RF=200 Ω, CF=20 pF
    • Die Size: : 0.65mm x 1.20mm

    Diagrams

    ADN2821 Diagram
    Functional Block Diagram for ADN2821

    Specifications

    -3 dB Bandwidth (GHz) 9.5GHz
    Transimpedance (kohm) 5kOhms
    Voltage Supply (V) +3.3V
    Power Dissipation (mW) 150mW
    Current Noise (pA/rtHz) 12pA/rtHz
    Die Size (mm x mm) 0.7 x 1.2
    Overload Current (mA p-p) 3.25mA p-p
    Total Jitter (pS p-p) 0
    Output Return Loss (dB) -12dB

    Explore Other Products

    Part# -3 dB Bandwidth (GHz) Transimpedance (kohm) Voltage Supply (V) Power Dissipation (mW) Current Noise (pA/rtHz) Overload Current (mA p-p) Total Jitter (pS p-p) Output Return Loss (dB) Die Size (mm x mm) Price* (1000-4999)
    AD8015 0.24 20 +5 125 3 350 - - 1 x 1 $2.72
    ADN2805 - 100 +3.3 390 - - - - - $9.33
    ADN2820 9 5 +3.3 200 11 3 17 -10 0.9 x 1.1 $30.36
    ADN2821 9.5 5 +3.3 150 12 3.25 5 -12 0.7 x 1.2 -
    ADN2880 2.5 4.4 +3.3 75 8 3.25 - -20 0.7 x 1.2 $3.40
    ADN2882 3.2 4 +3.3 75 10 - - -20 0.7 x 1.2 $3.05

    * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.