OP484FS

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An OP484FS is a rail-to-rail input / output operational amplifier (Op Amp) with power options including a single-supply voltage of 3V to 16V, a dual-supply voltage range from ±2V to ±8V, and a triple-supply voltage range from ±1V to ±4V. It features extremely low offset voltage and low input bias currents. It is suitable for a wide range of applications, especially in audio, instrumentation, and sensor amplifiers.

Application Field

The OP484FS op amp can be used in a variety of applications that require high input dynamic range, large signal bandwidth, or accuracy. These applications include audio preamps, FM receivers, instrumentation amplifiers, filters, and other applications that need a low-level signal such as sensors. It can also be used in power amplifiers, voltage regulators, and other items that require high-precision operation.

Working Principle

The OP484FS op amp works as an AC amplifier by amplifying a signal at one input port and outputting it at another. A signal at the input port is converted to an analog output at the other port. The signal is then amplified by the op amp. The gain of the op amp can be adjusted by varying the internal resistors and capacitors. The biasing voltage is also adjustable, allowing the OP484FS to operate at desired supply voltages, allowing operation at higher or lower voltages.

The OP484FS features an output stage using emitter-follower topology. This topology helps to maintain a low impedance output, which is necessary for many audio applications. The op amp also includes distortion-cancelling techniques, enabling a high linearity of 0.0001%. Its wideband frequency response ranges from DC to 1GHz and its low distortion performance enables excellent sound quality in critical audio applications.

The OP484FS op amp is designed to operate with very low quiescent current and is able to run on very low-voltage supplies. In addition, it can be operated with low operating voltages, making it suitable for low-power applications. Furthermore, the OP484FS features an integrated temperature sensor that helps to monitor the temperature inside the device and to adjust the gain accordingly.

In conclusion, the OP484FS is a versatile, high-performance, rail-to-rail input/output op amp with an extended voltage range and low noise, making it suitable for all kinds of applications. Its low quiescent current, wide frequency response, and distortion-cancelling techniques make it a great choice for audio, instrumentation, and sensor amplifiers.

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