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Design of a 4th-Order Feed-Forward-Compensated Operational Amplifier for Multi-GHz Sampling Frequency Continuous-Time Bandpass Sigma-Delta Modulators
2019
2019 IEEE International Symposium on Circuits and Systems (ISCAS)
This work presents a 4 th -order multi-stage, multipath, feed-forward-compensated operational amplifier in 65 nm CMOS technology. It is designed to meet the requirements of a continuous-time bandpass Σ∆ modulator with multi-GHz sampling frequency. The designed amplifier is modular with each stage implemented based on a unit differential amplifier block and it meets its targets with smart placement of poles and zeros. The amplifier is simulated under the loading condition of a single-amplifier
doi:10.1109/iscas.2019.8702147
dblp:conf/iscas/GebreyohannesLA19
fatcat:zzsfm2m6qnfb7ag6na4steu3e4