AD202JN

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The AD202 JN is an integrated circuit amplifier designed to amplify signals and produce high output power with a small package. It is categorized under the umbrella term of 'linear amplifiers' which include OP amps, buffer amplifiers and instrumentation amplifiers. In this article we will discuss the AD202 JN's application field and working principle.

Application field

The AD202 JN is increasingly being used in multiple industries such as medical, industrial, and automotive due to its low-power consumption and reliable design. Its highly sensitive and low-frequency range of operation make it well-suited for applications including signal conditioning, low-power radio receivers, audio power amplifiers and power supplies. The integrated circuit is ideal for sensing and measuring requirements where a very low-power consumption is demanded.

Working principle

The AD202 JN is made up of two Op Amps and a comparator, each operating differently and independently. The two op-amps are driven separately either by linear or rail-to-rail input and output. The comparator is driven by a single rail-to-rail input or linear output. The input signals are processed by the two Op Amps in parallel, creating a dual-opamp circuit with each having its own set of supply and gains. The output voltage of both op-amps is combined and passed through a stage before being released as an output. The comparator is connected to the outputs of both op-amps and performs a comparison between their outputs. When the output signals of both op-amps differ, the comparator starts comparing them and determines the most suitable output. This stage of comparison is known as the ‘range adjustment’ circuit and provides a reliable method of optimizing the gain and output of the system. The op-amp output signals are then combined and passed through an additional stage, the ‘main amplifier’ for further amplification. The main amplifier is formed of two identical transistors, in a push-pull configuration, with the outputs of both op-amps being combined prior to the stage.

Conclusion

The AD202 JN integrated circuit amplifier is an ideal solution for sensing and measuring where extremely low power consumption is required. It is increasingly being used in a variety of industries due to its low-power consumption, reliable design, and wide frequency range. Its working principle is based on two op-amps and one comparator, providing an optimal solution to powering low-level signals.

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