BA82902YF-CE2

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BA82902YF-CE2 Application Field and Working Principle

The BA82902YF-CE2 is a linear amplifier, commonly used for instrumentation, operational amplifiers (op amps), and buffer amplifiers. Linear amplifiers increase the power of a signal by boosting its amplitude level. BA82902YF-CE2 amplifiers are used for various applications including audio, instrumentation, automotive, and telecom, as well as in other areas where a linear amplifier plays an important role.

It is classified as a single-ended complementary amplifier because it uses complementary bipolar transistors as its active elements. The transistor pairs are connected in such a way that they push in phase with each other, hence amplified power is not lost in the output and a higher signal-to-noise ratio is achieved. The Emitter Bias Resistor further ensures that the transistor pairs push in phase with each other for noise and distortion control.

The BA82902YF-CE2 also features a differential input stage and a common-mode feedback circuit. The differential input of the amplifier allows for high input noise rejection. The common-mode feedback circuit reduces common-mode noise by providing negative feedback for the differential signal.

The BA82902YF-CE2 features a power output stage which comprises of two complementary power transistors. This allows for high power capability with enhanced output current delivery drive. A current limiter protection circuit protects the device against short circuits. This circuit compares the output current with a reference current value and disconnects the output if the output current exceeds a preset level.

The device can be configured to either a single-ended or differential output configuration. In single-ended output configuration, the device operates with one side of the output connected to the ground. In the differential output configuration, both sides of the output are connected to a ground reference.

The device can achieve a maximum output power of 2.0 watts and a maximum gain of 23 dB. It features an adjustable quiescent current and small output offset voltage, making it suitable for use in automotive and instrumentation applications.

In summary, the BA82902YF-CE2 is a linear amplifier which offers high power capability, noise and distortion control, and adjustable quiescent current and low output offset voltage. It is suitable for use in instrumentation, audio, automotive, and telecom applications.

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