OP467ARC/883C

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OP467ARC/883C Application Field and Working Principle

The OP467ARC/883C is a type of linear amplifier that is used in instrumentation, OP amps, buffer amps, and other applications where signal conditioning and amplification are needed. The OP467ARC/883C is an integrated circuit (IC) that can be used to increase the gain and stability of an audio, visual or other signal. The amplifier has a wide supply voltage range and can operate effectively over a wide range of temperatures.

Features

The OP467ARC/883C offers a wide range of features to support instrumentation, OP amps, buffer amps and other signal conditioning applications. Among its features are:

• Wide supply voltage range: The OP467ARC/883C operates on either a single or dual-supply voltage as low as 3.3 V and as high as 15 V.
• Wide operating temperature range: The amplifier can operate within a temperature range of -40 C to 125 C.
• Low power dissipation: Power dissipation is minimized by the use of advanced CMOS circuitry.
• Low input offset voltage: Input offset voltage is typically less than 1 mV.
• Low input bias current: Input bias current is typically less than 10 µA.
• High open-loop gain: Gain is typically around 40,000.
• High output current capability: Output current capability of 15mA is available.
• High slew rate: Slew rate of 10 V/µs is available.

Applications

The OP467ARC/883C can be used for a variety of applications in the instrumentation, OP amps, buffer amps and other signal conditioning fields. Its wide supply voltage and temperature ranges make it ideal for applications such as:

• Data acquisition
• Instrumentation and control systems
• Motor drive systems
• Telecommunication systems
• Industrial automation

Working Principle

The OP467ARC/883C utilizes advanced CMOS technology to amplify, filter and condition signals. The amplifier works by using negative feedback to control the gain of the output signal with respect to the input signal. The closed-loop gain of the amplifier is dependent on the amount of negative feedback applied to the amplifier. The more negative feedback applied, the higher the output gain. This gain is further influenced by the resistors that are connected to the amplifier inputs and outputs. By varying the combination of resistors, the gain and operating frequency can be adjusted.

The output of the OP467ARC/883C is affected not only by the magnitude of the input signal but also by its phase. This is due to the phase shifts caused by the amplifier\'s internal circuitry. These phase shifts result in a phase difference between the input and output signals, known as phase margin. If the phase margin is too small, the amplifier can be unstable, resulting in excessive gain. Proper phase margin can be achieved by adjusting the negative feedback or by adding a phase-compensating capacitor.

The output current of the OP467ARC/883C can also be adjusted by modifying the output circuitry. By adding a current-limiting resistor or by adding a current-mirror circuit, the maximum current available from the amplifier can be reduced.

Conclusion

The OP467ARC/883C provides instrumentation, OP amps, buffer amps and other applications with a high-performance amplifier that can be used to condition and amplify signals. Its wide supply voltage range and operating temperature range make it well-suited for applications in a variety of fields. Furthermore, its features such as low power dissipation, high open-loop gain and adjustable output current allow it to be easily customized to suit a specific application.

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