Low-voltage Gm-enhanced class-AB pseudo-differential OTA for switched-capacitor circuits

被引：0
|
作者：
Chaloenlarp, W [1 ]
Thanachayanont, A [1 ]
机构：
[1] King Mongkuts Inst Technol, Fac Engn, Dept Elect Engn,Microelect Res Lab, Res Ctr Commun & Informat Technol, Bangkok 10520, Thailand
来源：
TENCON 2004 - 2004 IEEE REGION 10 CONFERENCE, VOLS A-D, PROCEEDINGS: ANALOG AND DIGITAL TECHNIQUES IN ELECTRICAL ENGINEERING | 2004年
关键词：
Class-AB; switched-capacitor; pseudo-differential; positive feedback;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A new low-voltage, rail-to-rail output swing, class-AB pseudo-differential operational transconductance amplifier (OTA) for high-speed switched-capacitor applications is proposed. Positive feedback is employed to enhance the input transconductance, which increases the open-loop DC gain and the unity-gain frequency of the OTA. Using a 0.35-mu m CMOS process, the proposed OTA can obtain 78-dB DC gain, 72.5 degrees phase margin, 100-V/mu s slew rate with 1-pF load capacitor, while draining 170-mu A quiescent supply current from a single 1-V power supply voltage.
引用
收藏
页码：D233 / D236
页数：4
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