A novel current-mode output stage is presented which achieves high CMRR owing to an auxiliary high-gain feedback loop. Compared to the traditional solution, an approximately doubled transconductance is also obtained. SPICE simulations using the model parameters of a 0.8 μm CMOS process are found in remarkable agreement with expected results.
High-CMRR CMOS current output stage / Centurelli, Francesco; S., Pennisi; Trifiletti, Alessandro. - In: ELECTRONICS LETTERS. - ISSN 0013-5194. - STAMPA. - 39:13(2003), pp. 945-946. [10.1049/el:20030602]
High-CMRR CMOS current output stage
CENTURELLI, Francesco;TRIFILETTI, Alessandro
2003
Abstract
A novel current-mode output stage is presented which achieves high CMRR owing to an auxiliary high-gain feedback loop. Compared to the traditional solution, an approximately doubled transconductance is also obtained. SPICE simulations using the model parameters of a 0.8 μm CMOS process are found in remarkable agreement with expected results.File allegati a questo prodotto
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