scholarly journals A low voltage, rail-to-rail, class AB CMOS amplifier with high drive and low output impedance characteristics

2001 ◽  
Vol 48 (8) ◽  
pp. 753-761 ◽  
Author(s):  
G.A. Rincon-Mora ◽  
R. Stair
Keyword(s):  
Low Voltage ◽  
Output Impedance ◽  
Class Ab ◽  
Rail To Rail ◽  
High Drive ◽  
Impedance Characteristics ◽  
Cmos Amplifier

New low-voltage class AB/AB CMOS op amp with rail-to-rail input/output swing

2006 ◽  
Vol 53 (4) ◽  
pp. 289-293 ◽  
Author(s):  
J. Ramirez-Angulo ◽  
M.-S. Sawant ◽  
S. Thoutam ◽  
A.J. Lopez-Martin ◽  
R.G. Carvajal
Keyword(s):  
Low Voltage ◽  
Input Output ◽  
Class Ab ◽  
Op Amp ◽  
Rail To Rail ◽  
Output Swing

scholarly journals A New Rail-to-Rail Second Generation Voltage Conveyor

Electronics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1292 ◽  
Author(s):  
Barile ◽  
Stornelli ◽  
Ferri ◽  
Safari ◽  
D’Amico
Keyword(s):  
Second Generation ◽  
Low Voltage ◽  
Supply Voltage ◽  
Cmos Technology ◽  
Total Power ◽  
Voltage Range ◽  
Class Ab ◽  
Rail To Rail ◽  
Total Power Consumption ◽  
Voltage Swing

In this paper, a novel low voltage low power CMOS second generation voltage conveyor (VCII) with an improved voltage range at both the X and Z terminals is presented. The proposed VCII is formed by a current buffer based on a class AB regulated common-gate stage and a modified rail-to-rail voltage buffer. Spice simulation results using LFoundry 0.15 μm low-Vth CMOS technology with a ±0.9 V supply voltage are provided to demonstrate the validity of the designed circuit. Thanks to the class AB behavior, from a bias current of 10 µA, the proposed VCII is capable of driving 0.5 mA on the X terminal, with a total power consumption of 120 µW. The allowed voltage swing on the Z terminal is at least equal to ±0.83 V, while on the X terminals it is ±0.72 V. Both DC and AC voltage and current gains are provided, and time domain simulations, where the voltage conveyor is used as a transimpedance amplifier (TIA), are also presented. A final table that summarizes the main features of the circuit, comparing them with the literature, is also given.

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