Session 6-1
A 100dB DR Ground-Referenced Single-Ended Class-D
Amplifier in 65nm CMOS
Abstract
| A ground-referenced Class-D headset amplifier combines digital PWM and analog PWRM schemes. The closed-loop analog driver includes a feed-forward path and a T-bridge power stage. The single-ended amplifier in 65nm CMOS achieves 100dB DR, 82dB PSRR and 80% efficiency with an integrated charge pump. |