Title :
Source-degenerated CMOS Transconductor with Auxiliary Linearization
Author :
Monsurrò, Pietro ; Scotti, Giuseppe ; Trifiletti, Alessandro ; Pennisi, Salvatore
Author_Institution :
Dipt. di Ingegneria Elettronica, Universita di Roma
Abstract :
We propose a linearization technique, for CMOS differential pairs employing resistive source degeneration, which exploits the bulks of the pair as additional control terminals. Simulations were performed using a 0.25-mum process, on an example design powered with 2.5 V and 1 mA. Compared to the traditional source-degenerated transconductor, the proposed approach allows a THD reduction in the voltage-to-current conversion by 10 dB, for an input differential signal of 0.5 Vpp and for frequencies up to 100 MHz.
Keywords :
CMOS integrated circuits; differential amplifiers; linearisation techniques; 0.25 micron; 1 mA; 2.5 V; CMOS differential pairs; THD reduction; auxiliary linearization; linearization technique; resistive source degeneration; source-degenerated CMOS transconductor; voltage-to-current conversion; CMOS technology; Electronic mail; Frequency conversion; Linearity; Linearization techniques; Resistors; Signal analysis; Transconductance; Transconductors; Voltage;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378728
