The DIO2021ST5 is a single-channel, 3.3MHz, RRIO CMOS amplifier manufactured by Dioo. It is an operational amplifier–an integrated circuit commonly used in most analog circuits–with a low thermal resistance of 190uA, making it capable of handling large signal variations without excessive temperature changes. It can also offer low noise, tight gain bandwidth, and low offset voltage. Additionally, its fast switching speeds and low power consumption make it suitable for a variety of applications such as data conversion, signal conditioning, and signal conditioning. It is also capable of handling a wide range of input voltage levels and has a wideband output range for accurate signal processing.