A High Gain Low Power Operational Amplifier using Class AB Output Stage

2019 ◽  
Author(s):  
A. Jeevan Kumar ◽  
K. Lokesh Krishna ◽  
K. Abhinav Viswateja ◽  
K. Gopi ◽  
S. Mohan Rao ◽  
...  
Keyword(s):  
Low Power ◽  
Operational Amplifier ◽  
High Gain ◽  
Output Stage ◽  
Class Ab

A High Gain, Low Power Operational Amplifier utilizing BiCMOS Class AB Output Stage

2021 ◽  
Author(s):  
I.T Shruthi ◽  
Shreelekha Panchal ◽  
Sarita Uniyal ◽  
Dr. Shashidhar Tantry
Keyword(s):  
Low Power ◽  
Operational Amplifier ◽  
High Gain ◽  
Output Stage ◽  
Class Ab

Design of a Low-Power Rail-to-Rail CMOS Operational Amplifier

2013 ◽  
Vol 380-384 ◽  
pp. 3304-3307
Author(s):  
Yang Guang ◽  
Bin Yu ◽  
Huang Hai
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Operational Amplifier ◽  
Circuit Simulation ◽  
Open Loop ◽  
Cmos Process ◽  
Output Stage ◽  
Class Ab ◽  
Op Amp ◽  
Rail To Rail

In this paper, an operational amplifier with low-power consumption has been designed. Using the complementary differential pair for the input stage and the class AB structure for the output stage, the common-mode input range and output swing of the proposed circuit could achieved rail-to-rail. Based on TSMC 0.18μm CMOS process, using HSPICE 2008 software for circuit simulation, the results showed that the proposed op-amp has more than 100dB open loop gain, meanwhile the static power consumption is less than 300μw. The circuit's phase margin is 68 degrees, CMRR is 135dB and power supply rejection ratio is 63dB.

scholarly journals Low power high-gain class-AB OTA with dynamic output current scaling

2013 ◽  
Vol 10 (3) ◽  
pp. 20130042-20130042 ◽  
Author(s):  
Youngil Kim ◽  
Sangsun Lee
Keyword(s):  
Low Power ◽  
High Gain ◽  
Output Current ◽  
Class Ab ◽  
Dynamic Output
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