OP281GRUZ-REEL Integrated Circuits (ICs)

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Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The OP281GRUZ-REEL (OP281) is a high-performance, precision, low-noise, rail-to-rail instrumentation amplifier from the op-amp family of devices. This versatile device is used in a variety of applications, from audio and instrumentation to wide-bandwidth analog to digital conversion.

The device features low-power consumption and low-input offset voltage, making it ideal for use in high-fidelity audio systems and other electronics where accuracy and low-noise are paramount. It has a bandwidth of more than 200MHz and a low-noise floor of under 50 millivolts, so it can deliver clean, detailed sound even at low-level audio levels.

The OP281 is a dual-channel instrumentation amplifier with a single-ended input and differential output. It features an internally compensated output gain stage, adjustable voltage gain, and low-power consumption, making it suitable for a wide range of applications. With a single-supply operation, it can be used for precision instrumentation for higher-level signals.

The amplifier also features excellent common-mode rejection ratio, which is important for applications where there may be excessive electrical noise present. This is especially useful in audio and video applications, where noise must be filtered out to produce high-quality output. The amplifier also offers excellent output noise reduction, so it can filter out unwanted signals and provide clean, accurate audio or video signals at low levels.

The OP281’s high-performance design comes from its circuit architecture. The device operates in the current-mode feedback configuration, which is designed for superior performance with low-noise, low-power consumption, and low-distortion characteristics. This is made possible by the use of low-offset current-source inputs and short-time response outputs, along with a fully differential input stage and adjustable gain stages.

The OP281 also further enhances its performance with a built-in relay bypass-switch circuit. The switch provides a direct connection from the amplifier’s input to its output, enabling the user to bypass the device’s circuitry entirely and bypass the need for a low-noise shielded box. The switch is useful in applications where the signal is too weak or the noise too high to be amplified by the device.

In addition to its excellent performance, the OP281 offers a wide range of features that make it suitable for a number of different applications. These features include a built-in temperature compensation circuit, fast start-up time, and programmable response time. It also has a low-voltage power supply capability and power-down mode, so it can be used for applications that require low voltage operation or applications that require power conservation.

The OP281 is an ideal choice for a wide range of instrumentation and audio applications. Its low-noise and low-power characteristics make it perfect for high-fidelity audio systems, as well as applications where accuracy and low-noise are essential. Thanks to its dual-channel design, adjustable voltages, high-performance feedback loop, and low-voltage power supply capability, the device can be used for variety of different applications, making it one of the most versatile op-amps available on the market.

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