![]() The bypass pin capacitor (Cb) gives a filtering of half-supply.The supply bypass capacitor (Cs) gives the filtering of the power supply.The feedback resistance (Rf) fixes the gain of closed-loop within conjunction through Ri.In addition, it creates an HPF using Ri on fc = 1/(2πRi*Ci). An input coupling capacitor (Ci) blocks the voltage of DC where the i/p of an amplifier ends.This resistor can form an HPF ( high pass filter) using the input coupling capacitor (Ci) on fc = 1/(2πRi*Ci). An inverting input resistance (Ri) sets the gain of closed-loop within conjunction through feedback resistance (Rf).The main components used in this circuit are Ri, Ci, Rf, Cf, and Cb which are discussed below. The gain of the primary op-amp is configurable externally whereas the second amplifier is fixed internally in inverting configuration with a unity gain. This circuit can be built with two operational amplifiers with different configurations. The circuit diagram of this audio amplifier is shown below. ![]() This IC is the best choice for those who are looking for dual op-amp IC including wide bandwidth as well as high gain. It is used in an audio speaker as well as low-voltage applications. This amplifier doesn’t use capacitors like output coupling otherwise bootstrap. The main intension of this IC is to offer output power with high-quality using fewer components. ![]() This type of amplifier has a feature like a shut-down mode.
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March 2023
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