43 Gb/s Limiting Transimpedance Amplifier

    Discontinued >

    End of Life announced July 27, 2015.
    Last Time Buy February 6, 2016.
    Contact your local sales representative for assistance.

    Key Features

    • Differential input and different output
    • Input or output can be used single-ended
    • Limiting operation, 4.5k ohm diff. transimpedance
    • Low noise, 30 pA/root Hz typical
    • Adjustable input offset
    • Peak level detection
    • Output sense for offset control
    • Bandwidth of 30GHz
    • Tunable frequency response
    • Output eye shape adjustment pin
    • DC and AC coupled operation
    • Single supply voltage of -5.2 V
    • SiGe technology with ƒT / ƒmax of 170 / 250 GHz

    Qorvo's TIA56 is a versatile high-speed trans-impedance amplifier designed for the amplification and manipulation of signals with data rates to over 43Gb/s. The TIA56 consists of a fully symmetrical differential input and output buffer and is optimized for 50 ohm line termination.

    For applications which require adjustable input bias or compensation of DC input currents (e.g. photodiodes) the TIA56 allows adjusting the bias input current for each input independently. By using the output sensing pins, an offset cancellation loop can be established.

    The TIA56 exhibits a fully symmetrical differential output buffer which provides either one differential output signal or two single ended output signals. The output voltage swing is fixed to 600 mVpp differential, or 300 mVpp single ended.

    Typical Applications

      • 43 Gbps DPSK receivers
      • Amplitude Regeneration
      • Active power/signal splitter
      • TIA for photoreceptor
    Bandwidth(GHz) 30
    Small Signal Gain(dB) 40
    Differential Transimpedance Gain(ohm) 4,500
    Differential Output Vpp(mV) 600
    Equivalent Input Noise(pA/rtHz) 30
    Voltage(V) -5.2
    Current(mA) 85
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No

    This product appears in the following application block diagrams:

    • Applications > Network Infrastructure > Optical > Optical Systems (10, 40, 100, 200 to 400GB/s)

      Optical Systems (10, 40, 100, 200 to 400GB/s)

    • Applications > Network Infrastructure > Optical > Coherent Transceiver Module

      Coherent Transceiver Module