A Versatile Chopper-Stabilized Rail-to-Rail Operational Amplifier

被引：0
|
作者：
Ge, Fuding [1 ]
Jalali-Farahani, Bahar [1 ]
机构：
[1] Arizona State Univ, Dept Elect Engn, Tempe, AZ 85287 USA
来源：
2008 51ST MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 | 2008年
关键词：
D O I：
10.1109/MWSCAS.2008.4616749
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents the design and measured results of a low power high bandwidth versatile rail-to-rail input/output chopper-stabilized amplifier. The core of the amplifier is a folded-cascode OTA, with complementary input pairs for rail-to-rail input capability, a push-pull class-AB output stage is used to provide rail-to-rail output capability. The design also uses complementary current-mirrors and cascode miller compensation, which result in smaller compensation capacitor value and better high-frequency PSRR performance. Choppers at low-impedance nodes are used to further reduce the input referred offset and noise.
引用
收藏
页码：113 / 116
页数：4
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