Wide range gain programmable class AB linear current mirrors for low supply operation

1994 ◽  
Vol 41 (9) ◽  
pp. 631-634 ◽  
Author(s):  
J. Ramirez-Angulo
Keyword(s):  
Class Ab ◽  
Current Mirrors ◽  
Linear Current ◽  
Wide Range

scholarly journals Super class AB RFC OTA using non‐linear current mirrors

2018 ◽  
Vol 54 (23) ◽  
pp. 1317-1318 ◽  
Author(s):  
M.P. Garde ◽  
A.J. Lopez‐Martin ◽  
R.G. Carvajal ◽  
J.A. Galan ◽  
J. Ramirez‐Angulo
Keyword(s):  
Class Ab ◽  
Current Mirrors ◽  
Linear Current ◽  
Non Linear

scholarly journals Implementation of Power-Efficient Class AB Miller Amplifiers Using Resistive Local Common-Mode Feedback

2021 ◽  
Vol 11 (3) ◽  
pp. 31
Author(s):  
Anindita Paul ◽  
Mario Renteria-Pinon ◽  
Jaime Ramirez-Angulo ◽  
Ricardo Bolaños-Pérez ◽  
Héctor Vázquez-Leal ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Figure Of Merit ◽  
Small Signal ◽  
Common Mode ◽  
Power Efficient ◽  
Class Ab ◽  
Op Amp ◽  
Class A ◽  
Wide Range ◽  
Quiescent Current

An approach to implement single-ended power-efficient static class-AB Miller op-amps with symmetrical and significantly enhanced slew-rate and accurately controlled output quiescent current is introduced. The proposed op-amp can drive a wide range of resistive and capacitive loads. The output positive and negative currents can be much higher than the total op-amp quiescent current. The enhanced performance is achieved by utilizing a simple low-power auxiliary amplifier with resistive local common-mode feedback that increases the quiescent power dissipation by less than 10%. The proposed class AB op-amp is characterized by significantly enhanced large-signal dynamic, static current efficiency, and small-signal figures of merits. The dynamic current efficiency is 15.6 higher, the static current efficiency is 8.9 times higher, and the small-signal figure of merit is 2.3 times higher than the conventional class-A op-amp. A global figure of merit that determines an op-amp’s ultimate speed is 6.33 times higher than the conventional class A op-amp.

Design of Three-Stage Class-AB 16 $\Omega$ Headphone Driver Capable of Handling Wide Range of Load Capacitance

2009 ◽  
Vol 44 (6) ◽  
pp. 1734-1744 ◽  
Author(s):  
Vijay Dhanasekaran ◽  
Jose Silva-Martinez ◽  
Edgar Sanchez-Sinencio
Keyword(s):  
Class Ab ◽  
Wide Range ◽  
Stage Class

scholarly journals Current mode approach: High performance 0.35 μm CMOS class AB push-pull current amplifier

2003 ◽  
Vol 16 (2) ◽  
pp. 195-204
Author(s):  
Lyes Bouzerara ◽  
Mohand Belaroussi
Keyword(s):  
High Performance ◽  
Supply Voltage ◽  
Current Mode ◽  
Current Gain ◽  
Design Parameters ◽  
Power Supply Voltage ◽  
Current Amplifier ◽  
Class Ab ◽  
Current Mirrors ◽  
General Circuits

A very high bandwidth class AB (Push-Pull) current amplifier using the compensation resistor technique is presented and analyzed. Such technique stands as a powerful method of bandwidth enhancement for general circuits using CMOS current mirrors. The proposed bandwidth is enhanced from 675 MHz for the uncompensated current amplifier to 745MHz for the compensated one without affecting the current gain and other design parameters such as power consumption and output swing. The circuit exhibits a current gain of 20 dB and consumes 1.48 mW for ?2.5V power supply voltage. All simulation results were performed using Hspice tool with 0.35^m CMOS TSMC parameters.

scholarly journals Very wide range tunable CMOS/bipolar current mirrors with voltage clamped input

1999 ◽  
Vol 46 (11) ◽  
pp. 1398-1407 ◽  
Author(s):  
T. Serrano-Gotarredona ◽  
B. Linares-Barranco ◽  
A.G. Andreou
Keyword(s):  
Current Mirrors ◽  
Wide Range

scholarly journals The analysis of full-wave wide-band precision rectifier with modified second type current conveyor

2007 ◽  
Vol 20 (2) ◽  
pp. 215-221 ◽  
Author(s):  
Slobodan Ðukic
Keyword(s):  
Operational Amplifier ◽  
Wide Band ◽  
Current Conveyor ◽  
Current Sensing ◽  
Full Wave ◽  
Current Mirrors ◽  
Wide Range ◽  
Supply Current

The full-wave wide-band precision rectifier with modified second type current conveyor (MCCII), realized with the operational amplifier and three current mirrors (CM), is presented in this paper. The model of operational amplifier is adapted in such a way that it is possible to use supply-current sensing in supply rails of operational amplifier with SPICE program. Wilson's realization for current mirrors is used for precise current reproduction in a wide range of the amplitude values as well as frequencies.

Highly linear micropower class AB current mirrors using Quasi-Floating Gate transistors

2014 ◽  
Vol 45 (10) ◽  
pp. 1261-1267 ◽  
Author(s):  
Fermin Esparza-Alfaro ◽  
Antonio J. Lopez-Martin ◽  
Ramon G. Carvajal ◽  
Jaime Ramirez-Angulo
Keyword(s):  
Floating Gate ◽  
Class Ab ◽  
Current Mirrors
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