@article{YIN2009, 
author = {Shujuan YIN and Yihe SUN and Xiangyu LI},
title = {Digital 1 V 82 μW Pseudo-Two-Stage Class-AB OTA},
year = {2009},
journal = {Tsinghua Science and Technology},
volume = {14},
number = {5},
pages = {601-605},
keywords = {low voltage, low power, operational transconductance amplifier (OTA), fully compensated depletion mode MOS-capacitor, Class-AB},
url = {https://www.sciopen.com/article/10.1016/S1007-0214(09)70123-3},
doi = {10.1016/S1007-0214(09)70123-3},
abstract = {A low power digital operational transconductance amplifier (OTA) was developed for low voltage switched capacitor applications. The OTA has a high slew rate (SR) and a large open loop gain with a differential pseudo-two-stage Class-AB structure. A fully compensated depletion mode capacitor is used in the switched capacitor common mode feedback block instead of a metal-insulator-metal (MIM) capacitor to reduce the fabrication cost. Simulations show that with a 1.0-V supply voltage and a 34-pF load at each output terminal, this digital differential pseudo-two-stage Class-AB OTA realized in 0.13-μm technology achieves a 63.5-dB DC gain and a 0.83-V output swing. The slew rate is ±16.29 V/μs and the total power dissipation is only 82 μW.}
}