Open Access100 MHz current generator with T /( T − t ) time waveform in 0.35 μm BiCMOS technology
Author(s) -
Tadić N.,
Goll B.,
Zimmermann H.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.3946
Subject(s) - sawtooth wave , waveform , bicmos , generator (circuit theory) , current (fluid) , electrical engineering , physics , signal generator , arbitrary waveform generator , transistor , electronic engineering , optoelectronics , voltage , engineering , telecommunications , power (physics) , quantum mechanics
A 0.35 μm BiCMOS current generator suitable for optical quantum random number generators is presented. The time dependence of the current pulses is of the form T /( T − t ). The design uses the bipolar junction transistor translinear loop with two inputs supplied by a DC and one input supplied by a sawtooth current. The relative error of the measured waveform at 20 MHz is <3% in 97.5% of the time interval in which the current pulses have a rising slope. The current pulses can be generated up to a frequency of 100 MHz.