Title :
Bandwidth Extension of CMOS Transimpedance Amplifier Using On-Chip Spiral Inductor
Author :
Hasaneen, El-Sayed A M ; Wahab, Mohamed A A ; Okaley, Nagwa
Author_Institution :
El-Minia Univ., El-Minia
Abstract :
This paper presents bandwidth extension of differential CMOS transimpedance amplifier (TIA) using on-chip inductor techniques. On-chip spiral inductor is connected in series with the output node to enhance the bandwidth. The effects of the inductor nonidealities are included in the design. Simple and accurate inductor lumped circuit model is used in analyzes. Simulation results show that the bandwidth is increased by 47% by using on-chip spiral inductor. Without on-chip inductor the bandwidth is 27.764 GHz and it is extended to 41.009 GHz. The total load resistance is partitioned between the inductor series resistance and an external load resistance to reduce the nonideality of the on-chip inductor and improve the bandwidth with no additional power dissipation.
Keywords :
CMOS analogue integrated circuits; differential amplifiers; inductors; lumped parameter networks; microwave amplifiers; operational amplifiers; CMOS transimpedance amplifier; bandwidth 27.764 GHz; bandwidth extension; differential amplifier; external load resistance; inductor lumped circuit model; inductor series resistance; on-chip spiral inductor; Bandwidth; Broadband amplifiers; Circuit simulation; Inductance; Inductors; Parasitic capacitance; Radio frequency; Radiofrequency amplifiers; Silicon; Spirals; bandwidth extension; on-chip inductor model; transimpedance amplifier;
Conference_Titel :
Design and Test Workshop, 2007. IDT 2007. 2nd International
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-1824-4
Electronic_ISBN :
978-1-4244-1825-1
DOI :
10.1109/IDT.2007.4437425
