The closed-loop gain of the first amplifier is set by selecting the ratio of Rf to Ri while the second amplifier's gain is fixed by the two internal 40kΩ resistors. The first amplifier's gain is externally configurable the second amplifier is internally fixed in a unity-gain, inverting configuration. As shown in the circuit, the MD8002A has two operational amplifiers internally, allowing for a few different amplifier configurations. So if you are looking for a Dual Operational amplifier IC with high-gain and wide bandwidth for audio amplification, then this IC might be the right choice for you.Īn application circuit from the MD8002A datasheet is given below.
The 8002 is ideally suited for audio speakers and other low voltage applications. It does not require output coupling capacitors or bootstrap capacitors. The 8002 is designed specifically to provide high-quality output power with a minimal amount of external components. The MD8002A is a Class-AB audio power amplifier with a Shutdown mode feature.
Note: Complete Technical Details can be found in the MD8002A datasheet linked at the end of this page.Įquivalent for MD8002A : LM4871, TDA2050Īlternatives Audio Amplifiers : LM386, AD620, IC6283, JRC45558 MD8002A Audio amplifier features and specifications This IC comes with features like thermal shutdown protection, unity-gain stability, external gain set, and supply voltage of this IC is 5V. The MD8002A is a mono bridged audio power amplifier capable of delivering 3W of continuous average power to 3Ω BTL load.
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