A CMOS current operational amplifier with high common mode rejection is presented. This performance is obtained through a feedback-enhanced output stage exhibiting also low supply voltage requirements. Simulations using a 0.25-/spl mu/m process on an implementation powered with 2 V and consuming 2.4 mW show both DC loop gain and CMRR higher than 110 dB and a gain-bandwidth product of about 40 MHz. Compared to the traditional solution, the CMRR improvement is higher than 50 dB.
2 V CMOS current operational amplifier with high CMRR / R., Luzzi; S., Pennisi; Scotti, Giuseppe; Trifiletti, Alessandro. - (2005). (Intervento presentato al convegno 2005 European Conference on Circuit Theory and Design, 2005. tenutosi a Cork, Ireland).
2 V CMOS current operational amplifier with high CMRR
SCOTTI, Giuseppe;TRIFILETTI, Alessandro
2005
Abstract
A CMOS current operational amplifier with high common mode rejection is presented. This performance is obtained through a feedback-enhanced output stage exhibiting also low supply voltage requirements. Simulations using a 0.25-/spl mu/m process on an implementation powered with 2 V and consuming 2.4 mW show both DC loop gain and CMRR higher than 110 dB and a gain-bandwidth product of about 40 MHz. Compared to the traditional solution, the CMRR improvement is higher than 50 dB.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
