A 1.2mW 1.6Vpp-Swing Class-AB 16Ω Headphone Driver Capable of Handling Load Capacitance up to 22nF

Author

Dhanasekaran, Vijay ; Silva-Martinez, Jose ; Sanchez-Sinencio, Edgar

Author_Institution

Texas A&M Univ., College station, TX

fYear

2008

fDate

3-7 Feb. 2008

Firstpage

434

Lastpage

625

Abstract

We present a compensation scheme with a damping circuit that automatically adjusts according to the load condition to overcome this problem and still maintain the power efficiency improvement over NMC. Capacitive loads as large as 20nF are used in some platforms for ESD protection and EMI suppression. Several compensation schemes for 3-stage amplifiers driving large capacitive loads with power efficiency more than 10 times that of the conventional nested Miller compensation (NMC) scheme have been reported recently.

Keywords

damping; driver circuits; electromagnetic interference; electrostatic discharge; headphones; interference suppression; low-power electronics; 3-stage amplifiers; EMI suppression; ESD protection; capacitive loads; class-AB headphone driver; conventional nested Miller compensation scheme; damping circuits; load capacitance handling; power 1.2 mW; resistance 16 ohm; CMOS technology; Capacitance; Damping; Driver circuits; Frequency; Headphones; MOS devices; Pulse measurements; Solid state circuits; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2008. ISSCC 2008. Digest of Technical Papers. IEEE International

Conference_Location

San Francisco, CA

Print_ISBN

978-1-4244-2010-0

Electronic_ISBN

978-1-4244-2011-7

Type

conf

DOI

10.1109/ISSCC.2008.4523243

Filename

4523243