Design of CMOS Broadband Transimpedance Amplifier with Cross Coupled Current Conveyor and series inductive Peaking
Volume: 4 - Issue: 01 - Date: 01-01-2015
Approved ISSN: 2278-1412
Published Id: IJAECESTU235 | Page No.: 405-408
Author: Vibhash Rai
Co- Author: Saket Kumar
Abstract:-This paper hearsay a unique cross-coupled current conveyor based cmos
transimpedance amplifier with series inductive peaking design to achieve an input capacitive load
insensitive, low noise and augment the bandwidth of transimpedance amplifier. The peaking
inductor is in series with the capacitor constituting a dominant pole. It boosts the band width of
the amplifier.The whole transimpedance amplifier consumes 225.90µW of the dc power measured
results show a -3dB bandwidth of about 6.7GHz with a 0.25pF photodiode capacitance. The
trnsimpedance gain for positive output port is 50.9 dBΩ . The measured single ended input
referred noise current spectral density is kept underneath 4.4159pA/√Hz within the TIA frequency
band. The series inductive peaking network consists of inductor at the input to resonate with CD
near the -3dB bandwidth of the amplifier, reduces input referred noise and increase the overall
bandwidth.
Key Words:-Transimpedance amplifier, noise, gain, bandwidth enhancement, cross coupled current conveyor, series inductive peaking
Area:-Engineering
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