XTA0820

8-Channels 

Transimpedance Amplifier with

Variable Transimpedance Gain

General Description

The XTA0820 is an 8-channels transimpedance amplifier(TIA) with more than 200MHz bandwidth，which is adapted to the linear-mode APD applications. The XTA0820 features four variable transimpedance gains conducted by two digital inputs. With a total APD parasitic capacitance of 2pF, the input-referred current noise is 6.3pA/ at 200MHz.

With the integrated output buffer module, its single-ended output can swing 700mVP-P on a 50Ω load. The XTA0820 dissipates 100mW for one channel with single 3.3V supply.

The XTA0820 is available in a 5mm × 5mm 48-pin QFN package.

FEATURES

 200MHz –3dB Bandwidth with 2pF Input Capacitance

 Variable Transimpedance Gain 68dBΩ, 74 dBΩ, 80 dBΩ, and 86 dBΩ

 Input Current Noise Density 6.3pA/ (2pF) at 200MHz

 Channel Switching Time<30ns

 Single 3.3V Supply

 50Ω Output Impedance

 700mVP-P Output Swing on 50Ω load

 100mW Power Dissipation for one Channel

 5mm×5mm, QFN48 Package

APPLICATIONS

 Autonomous Vehicle Environment Perception

 Environment Detection Robot

 Intelligent Transportation

 UAV Mapping

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