Name
Abstract | ||
|---|---|---|
In this paper, feed-forward and class AB techniques are explored for the design of high-frequency Operational Transconductance Amplifiers (OTA) suitable for ADC architectures. The paper is focused on high gain broadband amplifiers; the first part of the paper revisited the recycling folded-cascode (RFC) architectures. These topologies are power efficient solutions but careful design is needed to avoid the presence of medium-frequency zero-pole pairs that may significantly increase residue amplifier settling time. The two stage class AB amplifier is revisited as well; the popular Monticelli's biasing circuit for class AB amplifiers is power efficient and result in high slew-rate solutions. An alternative class AB solution is proposed in this paper. The biasing of the class AB output stage employs a common-mode feedback, and results in a faster and more power efficient architecture; power consumption is around 75% that of the conventional class AB architecture and shows 3dB lower IM3 for the design of a state-variable 25MHz high-Q biquadratic filter. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/MWSCAS.2019.8885082 | Midwest Symposium on Circuits and Systems Conference Proceedings |
Keywords | Field | DocType |
Broadband Amplifiers,Cascode Amplifiers,Recycling Amplifiers,Multi-stage Amplifiers,Class AB Amplifiers | Logic gate,Band-pass filter,Computer science,Broadband,Electronic engineering,Low-pass filter,Transconductance,Transistor,Amplifier,Biasing | Conference |
ISSN | Citations | PageRank |
1548-3746 | 0 | 0.34 |
References | Authors | |
0 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jose Silva-Martinez | 1 | 630 | 86.56 |
| Tanwei Yan | 2 | 0 | 0.34 |
| Junning Jiang | 3 | 4 | 2.12 |
| Jian Shao | 4 | 0 | 1.01 |