A Low Voltage Rail-to-Rail OPAMP Design for Biomedical Signal Filtering Applications

Author(s):  
Hwang-Cherng Chow ◽  
Pu-Nan Weng
2021 ◽  
Vol 11 (2) ◽  
pp. 19
Author(s):  
Francesco Centurelli ◽  
Riccardo Della Sala ◽  
Pietro Monsurrò ◽  
Giuseppe Scotti ◽  
Alessandro Trifiletti

In this paper, we present a novel operational transconductance amplifier (OTA) topology based on a dual-path body-driven input stage that exploits a body-driven current mirror-active load and targets ultra-low-power (ULP) and ultra-low-voltage (ULV) applications, such as IoT or biomedical devices. The proposed OTA exhibits only one high-impedance node, and can therefore be compensated at the output stage, thus not requiring Miller compensation. The input stage ensures rail-to-rail input common-mode range, whereas the gate-driven output stage ensures both a high open-loop gain and an enhanced slew rate. The proposed amplifier was designed in an STMicroelectronics 130 nm CMOS process with a nominal supply voltage of only 0.3 V, and it achieved very good values for both the small-signal and large-signal Figures of Merit. Extensive PVT (process, supply voltage, and temperature) and mismatch simulations are reported to prove the robustness of the proposed amplifier.


Author(s):  
Chung-Chih Hung ◽  
M. Ismail ◽  
K. Halonen ◽  
V. Porra
Keyword(s):  

Author(s):  
Juan M. Carrillo ◽  
Raquel Perez-Aloe ◽  
Jose M. Valverde ◽  
J. Francisco Duque-Carrillo ◽  
Guido Torelli
Keyword(s):  

2001 ◽  
Vol 29 (4) ◽  
pp. 413-422 ◽  
Author(s):  
Giuseppe Ferri ◽  
Andrea Baschirotto
Keyword(s):  

Author(s):  
Lukas Nagy ◽  
Viera Stopjakova ◽  
Daniel Arbet ◽  
Miroslav Potocny ◽  
Martin Kovac

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
A. Fernández Rodríguez ◽  
L. de Santiago Rodrigo ◽  
E. López Guillén ◽  
J. M. Rodríguez Ascariz ◽  
J. M. Miguel Jiménez ◽  
...  

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