Title :
150 μA CMOS Transconductor with 82 dB SFDR
Author :
Pennisi, Salvatore ; Scotti, Giuseppe ; Trifiletti, Alessandro
Author_Institution :
Dipt. di Ingegneria Elettrica Elettronica e dei Sistemi, Universita di Catania
Abstract :
A CMOS high-linearity transconductor useful for IC filtering applications is presented. It is based on a feedback unity-gain amplifier driving a resistor to achieve linear voltage-to-current conversion. Simulation results are provided on a design example using a 0.35-mum technology, powered from a 3.3V supply, and using a total dc current of 150 muA. The 3-dB bandwidth was 630 MHz and HD3, onto a load resistor of 20kOmega, was -82 dB at 1MHz.
Keywords :
CMOS integrated circuits; circuit feedback; operational amplifiers; 0.35 micron; 150 muA; 20 kohm; 3.3 V; 630 MHz; CMOS transconductor; IC filtering; feedback unity-gain amplifier; high-linearity transconductor; linear voltage-to-current conversion; Circuits; Digital filters; Feedback; Filtering; Frequency; Linearity; Resistors; 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.2007.378320
