Title :
Fully Differential Difference Amplifier for Low-Noise Applications
Author :
Arbet, Daniel ; Nagy, Gabriel ; Kovac, Martin ; Stopjakova, Viera
Author_Institution :
Electr. Eng. & Inf. Technol., Slovak Univ. of Technol., Bratislava, Slovakia
Abstract :
In this paper, a fully differential difference amplifier designed in 0.35 μm CMOS technology is presented. The proposed amplifier reaches high dynamic range and low input noise. Comparison of noise performance of the proposed fully differential difference amplifier to an ordinary differential amplifier has been performed. Simulation results prove that the developed amplifier circuit can be advantageously used in applications that require a fully differential signal. In our work, the proposed amplifier has been experimentally employed in the analog front end of the readout interface for a MEMS (Micro-Electro-Mechanical-Systems) capacitive microphone.
Keywords :
CMOS integrated circuits; differential amplifiers; low noise amplifiers; CMOS technology; MEMS capacitive microphone; analog front end; fully differential difference amplifier; high dynamic range; low input noise; low-noise applications; readout interface; Dynamic range; Noise; Power supplies; Resistors; Simulation; Thermal noise; Transistors; Fully Differential Difference Amplifier; MEMS; capacitive microphone; high dynamic range; low noise; readout interface;
Conference_Titel :
Design and Diagnostics of Electronic Circuits & Systems (DDECS), 2015 IEEE 18th International Symposium on
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-6779-7
DOI :
10.1109/DDECS.2015.38
