TY - JOUR
AU - Cocorullo, G.
AB - SUMMARY A new design approach to optimize the frequency compensation network of three‐stage operational amplifiers (op‐amps) is presented. The proposed criterion is aimed at maximizing the bandwidth of well‐established three‐stage op‐amps using Nested‐Miller Compensation with feedforward tranconductance stage and nulling resistor (NMCFNR). As shown by design examples in a commercial 0.35‐µm CMOS technology, the proposed approach allows the amplifier bandwidth to be enhanced significantly with respect to that resulting from using existing design strategies for NMCFNR op‐amps. It is also demonstrated that NMCFNR op‐amps, designed according to the proposed method, even guarantee larger values of the gain‐bandwidth product than three‐stage amplifiers using more complicated frequency compensation techniques, such as AC boosting compensation or damping‐factor control frequency compensation. Copyright © 2010 John Wiley & Sons, Ltd.
TI - Design approach for high‐bandwidth low‐power three‐stage operational amplifiers
JO - International Journal of Circuit Theory and Applications
DO - 10.1002/cta.722
DA - 2012-03-01
UR - https://www.deepdyve.com/lp/wiley/design-approach-for-high-bandwidth-low-power-three-stage-operational-drcDK0sEaz
SP - 263
EP - 273
VL - 40
IS - 3
DP - DeepDyve
ER -