Title
A 12 bit split-array switched capacitor power amplifier in 130nm CMOS
Abstract
This paper presents a 12 bit split-array switched-capacitor power amplifier (SA-SCPA) to improve resolution of an SCPA and hence the linear dynamic range. An attenuation capacitor added between two sub-arrays allows a smaller ratio between the smallest and largest capacitors in the array, accommodating better matching. To compromise between efficiency and linearity, 4 binary bits are chosen for the LSB sub-array and 4 binary + 4 unary bits are chosen for the MSB sub-array. The SA-SCPA is designed and extracted, in a 130nm RF CMOS technology. It delivers a peak output power of 22.6dBm with a peak PAE of 30%. The linearity of the array is simulated using a 64 QAM, OFDM signal with 20 MHz bandwidth and the EVM is 3.8% while meeting the spectral mask.
Year
DOI
Venue
2016
10.1109/SOCC.2016.7905426
2016 29th IEEE International System-on-Chip Conference (SOCC)
Keywords
Field
DocType
Class-D PA,Digital PA,EER,Switched-Capacitor PA,SCPA,Split Array DAC
Capacitor,Quadrature amplitude modulation,Linearity,12-bit,Spectral mask,Electronic engineering,CMOS,Engineering,Electrical engineering,Amplifier,Least significant bit
Conference
ISBN
Citations 
PageRank 
978-1-5090-1368-5
0
0.34
References 
Authors
6
6
Name
Order
Citations
PageRank
Zhi-Dong Bai18529.46
Dallas Johnson230.72
Ali Azam353.18
Anirban Saha400.34
Wen Yuan5345.20
Jeffrey S. Walling616319.89