A 1-V 1-mW high-speed class AB operational amplifier for high-speed low power pipelined A/D converters using "slew boost" technique

被引:0
|
作者
Aslanzadeh, HA [1 ]
Mehrmanesh, S [1 ]
Vahidfar, MB [1 ]
Safarian, AQ [1 ]
Lotfi, R [1 ]
机构
[1] Sharif Univ Technol, Tehran, Iran
关键词
CMOS analog circuit; operational amplifier; pipelined analog to digital converter; ultra low voltage; low power; high speed; class AB; slew boost technique;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
An ultra-low-voltage low-power high-speed class-AB operational amplifier with a new structure is presented. A new technique called "Slew Boost" is introduced to improve amplifier's large-signal settling behavior, most useful in switched-capacitor circuits such as pipelined ADCs, sigma delta modulators, etc. The proposed op-amp has been designed to be employed in the first stage of a 10bit 150MSamples/sec pipelined analog-to-digital converter. Simulation results of the proposed fully-differential class-AB op-amp using 0.18um CMOS process models, confirm that it has an output swing of 1.5 Vp-p and consumes less than 1mW from a single supply of 1 volt.
引用
收藏
页码:340 / 344
页数:5
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