Abstract
The settling performance design of operational amplifiers is an important issue in discrete-time system applications. Most of the currently existing approaches achieve settling time-oriented design based on an approximate analytical transfer function model, and the result is inaccurate. A method for the exact settling performance-driven design of three-stage nested-Miller-compensated CMOS amplifiers is proposed in this paper. With the user-specified settling time at a certain accuracy level, this method finds the optimal solution by a two-step strategy, where the parameters of the compensation network are first solved from the equations formulated based on the minimal settling condition, and then the transconductance of the last stage is adjusted automatically according to the targeted settling time. The accuracy of the method is guaranteed by the use of the SPICE simulation of the settling waveform in the entire procedure. When the process variations are considered, an accurate worst-case design method is further developed. The method also features high efficiency compared with conventional optimization-based approaches. Experimental results of the simulated design in a 90 nm technology are provided to validate the effectiveness of the method.
Similar content being viewed by others
Data Availability
The datasets generated in this study are available from the corresponding author on reasonable request.
References
S.R. Afrancheh, et al, Design procedure for settling time minimization in three-stage RNMC amplifiers, in IEEE EUROCON—International Conference on Computer as a Tool (Lisbon, Portugal, 2011). https://doi.org/10.1109/EUROCON.2011.6174587
H. Aminzadeh, Three-stage nested-Miller-compensated operational amplifiers: analysis, design, and optimization based on settling time. Int. J. Circuit Theory Appl. 39, 573–587 (2011). https://doi.org/10.1002/cta.663
E. Cabrera-Bernal et al., 0.7-V three-stage class-AB CMOS operational transconductance amplifier. IEEE Trans. Circuits Syst. I 63(11), 1807–1815 (2016). https://doi.org/10.1109/TCSI.2016.2597440
S.O. Cannizzaro et al., Design procedures for three-stage CMOS OTAs with nested-Miller compensation. IEEE Trans. Circuits Syst. I 54(5), 933–940 (2007). https://doi.org/10.1109/TCSI.2007.895520
A.M.L. Canelas, J.M.C. Guilherme, N.C.G. Horta, Yield-aware analog IC design and optimization in nanometer-scale technologies. Springer (2020). https://doi.org/10.1007/978-3-030-41536-5
S.S. Chong, P.K. Chan, Cross feedforward cascode compensation for low-power three-stage amplifier with large capacitive load. IEEE J. Solid State-Circuits 47(9), 2227–2234 (2012). https://doi.org/10.1109/JSSC.2012.2194090
A. Garimella, M.W. Rashid, P.M. Furth, Reverse nested Miller compensation using current buffers in a three-stage LDO. IEEE Trans. Circuits Syst. II 57(4), 250–254 (2010). https://doi.org/10.1109/TCSII.2010.2043401
G. Giustolisi, G. Palumbo, Three-stage dynamic-Biased CMOS amplifier with a robust optimization of the settling time. IEEE Trans. Circuits Syst. I 62(11), 2641–2651 (2015). https://doi.org/10.1109/TCSI.2015.2476396
G. Giustolisi, G. Palumbo, Robust design of CMOS amplifiers oriented to settling-time specification. Int. J. Circuit Theory Appl. 45(10), 1329–1348 (2017). https://doi.org/10.1002/cta.2309
G. Giustolisi, G. Palumbo, Design of CMOS three-stage amplifiers for near-to-minimum settling-time. Microelectron. J. 107, 104939 (2021). https://doi.org/10.1016/J.MEJO.2020.104939
G. Giustolisi, G. Palumbo, Design of three-stage OTA based on settling-time requirements including large and small signal behavior. IEEE Trans. Circuits Syst. I 68(3), 998–1011 (2021). https://doi.org/10.1109/TCSI.2020.3044454
G. Giustolisi, G. Palumbo, Efficient design strategy for optimizing the settling time in three-stage amplifiers including small-and large-signal behavior. Electronics 10, 612 (2021). https://doi.org/10.3390/electronics10050612
G. Giustolisi, G. Palumbo, Settling-time oriented OTA design through the approximation of the ideal delay. IEEE Int. Sympos. Circuits Syst. (2018). https://doi.org/10.1109/ISCAS.2018.8351087
G. Giustolisi, G. Palumbo, Bessel like compensation of three stage operational transconductance amplifiers. Int. J. Circuit Theory Appl. 46(4), 729–747 (2018). https://doi.org/10.1002/cta.2438
S. Golabi, M. Yavari, Design of CMOS three-stage amplifiers for fast-settling switched-capacitor circuits. Analog Integr. Circ. Sig. Process 80, 195–208 (2014). https://doi.org/10.1007/s10470-014-0332-y
A.D. Grasso et al., Design methodology of subthreshold three-stage CMOS OTAs suitable for ultra-low-power low-area and high driving capability. IEEE Trans. Circuits Syst. I 62(6), 1453–1462 (2015). https://doi.org/10.1109/TCSI.2015.2411796
A.D. Grasso, G. Palumbo, S. Pennisi, Advances in reversed nested Miller compensation. IEEE Trans. Circuits Syst. I 54(7), 1459–1470 (2007). https://doi.org/10.1109/TCSI.2007.900170
S. Guo, H. Lee, Single-capacitor active-feedback compensation for small-capacitive-load three-stage amplifiers. IEEE Trans. Circuits Syst. II 56(10), 758–762 (2009). https://doi.org/10.1109/TCSII.2009.2027954
P.G.A. Jespers, B. Murmann, Systematic Design of Analog CMOS Circuits: Using Pre-Computed Lookup Tables (Cambridge University Press, Cambridge, 2017). https://doi.org/10.1017/9781108125840.008
T. Kulej, F. Khateb, 0.3-V 98-dB Rail-to-Rail OTA in 0.18um CMOS. IEEE Access 8, 27459–27467 (2020). https://doi.org/10.1109/ACCESS.2020.2972067
S. Liu, Z. Zhu, J. Wang, L. Liu, Y. Yang, A 1.2-V 2.41-GHz three stage CMOS OTA with efficient frequency compensation technique. IEEE Trans. Circuits Syst. I 66(1), 20–30 (2019). https://doi.org/10.1109/TCSI.2018.2852334
T. McConaghy et al., Variation-Aware Design of Custom Integrated Circuits: A Hands-on Field Guide (Springer, New York, 2013)
R. Nguyen, B. Murmann, The design of fast-settling three-stage amplifiers using the open-loop damping factor as a design parameter. IEEE Trans. Circuits Syst. I 57(6), 1244–1254 (2010). https://doi.org/10.1109/TCSI.2009.2031763
G. Palumbo, S. Pennisi, Design methodology and advances in nested-Miller compensation. IEEE Trans. Circuits Syst. I 49(7), 893–902 (2002). https://doi.org/10.1109/TCSI.2002.800463
A. Pugliese, G. Cappuccino, G. Cocorullo, Nested-Miller compensation capacitors sizing rules for fast settling amplifiers design. Electron. Lett. 41(10), 573–575 (2005). https://doi.org/10.1049/el:20050398
A. Pugliese, G. Cappuccino, G. Cocorullo, Design procedure for settling time minimization in three-stage nested-Miller amplifiers. IEEE Trans. Circuits Syst. II 55(1), 1–5 (2008). https://doi.org/10.1109/TCSII.2007.906086
A. Pugliese et al., Settling time optimization for three-stage CMOS amplifier topologies. IEEE Trans. Circuits Syst. I 56(12), 2569–2582 (2009). https://doi.org/10.1109/TCSI.2009.2017133
W. Qu et al., Design-oriented analysis for Miller compensation and its application to multistage amplifier design. IEEE J. Solid State Circuits 52(2), 517–527 (2017). https://doi.org/10.1109/JSSC.2016.2619677
M. Sengupta et al., Application-specific worst case corners using response surfaces and statistical models. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 24(9), 1372–1380 (2005). https://doi.org/10.1109/TCAD.2005.852037
S. Seth, B. Murmann, Settling time and noise optimization of a three-stage operational transconductance amplifier, in IEEE International Symposium on Circuits and Systems (2012), pp. 205–208. https://doi.org/10.1109/ISCAS.2012.6271684
M. Tan, W.-H. Ki, A cascode Miller-compensated three-stage amplifier with local impedance attenuation for optimized complex-pole control. IEEE J. Solid State-Circuits 50(2), 440–449 (2015). https://doi.org/10.1109/JSSC.2014.2364037
Z. Yan et al., A 0.016-mm 144-μW three-stage amplifier capable of driving 1-to-15 nF capacitive load with>0.95-MHz GBW. IEEE J. Solid State-Circuits 48(2), 527–540 (2013). https://doi.org/10.1109/JSSC.2012.2229070
H. Zhang, et al, Efficient design-specific worst-case corner extraction for integrated circuits, in Proceedings of the IEEE/ACM Design Automation Conference (2009), pp. 386–389. https://doi.org/10.1145/1629911.1630013
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Xue, W., Guo, Y., Zhang, Y. et al. Exact Settling Performance Design for CMOS Three-Stage Nested-Miller-Compensated Amplifiers. Circuits Syst Signal Process 42, 1327–1351 (2023). https://doi.org/10.1007/s00034-022-02172-7
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00034-022-02172-7