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

abstract

• In this paper, the effect of load capacitance variation on the location of the closed loop poles of three-stage amplifiers is analyzed and a frequency compensation scheme that automatically adjusts the damping factor according to the load capacitance is proposed. A class-AB 16 headphone driver designed using the proposed scheme in 0.13 m technology can handle 1 pF to 22 nF capacitive load while consuming as low as 1.2 mW of quiescent power. It can deliver a peak power of 40 mW (1.6 Vpp swing) to the load with -84.8 dB THD and 92 dB peak SNR. It occupies 0.1 mm2 area. 2009 IEEE.

authors

• Silva-Martinez, Jose

published proceedings

• IEEE JOURNAL OF SOLID-STATE CIRCUITS

altmetric score

• 3

author list (cited authors)

• Dhanasekaran, V., Silva-Martinez, J., & Sanchez-Sinencio, E.

citation count

• 41

complete list of authors

• Dhanasekaran, Vijay||Silva-Martinez, Jose||Sanchez-Sinencio, Edgar

publication date

• June 2009

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

keywords

• Audio Power Amplifiers
• Capacitive Loaded Amplifiers
• Class-ab Amplifiers
• Class-ab Drivers
• Headphone Drivers
• Multi-stage Amplifiers

Digital Object Identifier (DOI)

• 10.1109/JSSC.2009.2020461

start page

• 1734

end page

• 1744

volume

• 44

issue

• 6

URL

• http://dx.doi.org/10.1109/jssc.2009.2020461