Title :
A Compensation Way for a Differential Pair to Achieve a High Performance Single-Ended to Differential Converter
Author :
Wang, Xin Jie ; Kwasniewski, Tad
Author_Institution :
Carleton Univ., Ottawa
Abstract :
An improved technique is presented for a differential pair operating as a single-ended to differential converter. Common source stages are used to compensate the output amplitude difference, and a resistor in series with a dummy transistor is in parallel with only one common source stage to compensate the output phase difference. The simulation results show that for the output differential signal, HD2 < -48.5 dBc, HD3 < -50.5 dBc, the amplitude difference < 4.5% and the absolute phase difference < 3deg with 0.18 mum-CMOS technology, over the frequency range from 1.6 GHz to 2.4 GHz. The simulation results agree with the improved technique well.
Keywords :
compensation; differential amplifiers; integrated circuit design; phase convertors; circuit design; differential pair; frequency 1.6 GHz to 2.4 GHz; high performance SDC; output phase difference compensation; single-ended to differential converter; size 0.18 micron; Bandwidth; CMOS technology; Circuits; Frequency; Immune system; Impedance; Linearity; Mirrors; Parasitic capacitance; Signal processing;
Conference_Titel :
Electrical and Computer Engineering, 2007. CCECE 2007. Canadian Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-1020-7
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2007.289
