Ota transimpedance operational amplifier
The operational transconductance amplifier (OTA) is an amplifier that outputs a current proportional to its input voltage. However, these devices serve a very useful function that is being implemented on a regular basis in many integrated circuits as an element for more advanced purposes; the current feedback. This means that an external controlling signal, either a current or a voltage, will be used to set a key parameter of the circuit, such as closed-loop gain or f 2.
Read More