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

fYear

2007

fDate

27-30 May 2007

Firstpage

2240

Lastpage

2243

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 V_pp 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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCAS.2007.378728

Filename

4253119