Title :
A new ELIN lossy integrator with instantaneous "arcsinh" companding
Author :
Bozomitu, Radu Gabriel ; Gora, Liviu ; Cehan, Vlad
Author_Institution :
Dept. of Telecommun., "Gh. Asachi" Tech. Univ., Iasi, Romania
Abstract :
In this paper a new ELIN lossy integrator with instantaneous "arcsinh" companding as a basic building block for active filter design is investigated. It is shown that "sinh" and "arctanh" functions can be used in ELIN systems to obtain "arcsinh" and "tanh" companding, respectively. The circuit has been obtained using the state-space synthesis and is composed of "tanh" and "sinh" blocks which can be implemented in bipolar technology. The main advantages of the proposed structure are: for "arcsinh" companding there is no need for biasing in order to ensure only positive signals; instantaneous companding is useful to reduce the voltages and thus enlarge the dynamic range; the linearity of the proposed structure depends on the accuracy in which the range of the "sinh" transfer characteristics is valid. The proposed circuit has been simulated for a 0.8μm BiCMOS technology showing remarkable good performances, and proving the practical applicability of the proposed structure.
Keywords :
BiCMOS analogue integrated circuits; active filters; integrating circuits; network synthesis; state-space methods; 0.8 micron; BiCMOS technology; ELIN lossy integrator; active filter design; arctanh functions; instantaneous arcsinh companding; sinh blocks; sinh functions; sinh transfer characteristics; state-space synthesis; tanh blocks; tanh companding; Active filters; Analog integrated circuits; BiCMOS integrated circuits; Circuit simulation; Circuit synthesis; Integrated circuit technology; Linearity; Power supplies; Signal synthesis; Voltage;
Conference_Titel :
Electronics Technology: Integrated Management of Electronic Materials Production, 2003. 26th International Spring Seminar on
Print_ISBN :
0-7803-8002-9
DOI :
10.1109/ISSE.2003.1260479
