OPA347UAG4

OPA347UAG4 Application Field and Working Principle

The OPA347UAG4 are a family of monolithic operational amplifiers from Texas Instruments featuring low noise, wide bandwidth, high gain, and low offset voltage. This family of operational amplifiers is designed for applications such as professional audio, industrial control, instrumentation, test and measurement, and automotive applications.

This family of operational amplifiers has four basic types: the OPA347UAG, the OPA347UAGP, the OPA347UAGR, and the OPA347UAGU. Each of these has different characteristics and features. The OPA347UAG4 is a low-noise, high-precision operational amplifier offering a low-noise gain bandwidth production of 1 MHz, with a minimum offset voltage of 0.2mV. It features a high open-loop gain of 86 dB and wide small-signal bandwidths of 2.8 MHz and 3.3 MHz with a quiescent total harmonic distortion of -60 dB.

The OPA347UAG4 has a single power supply design and is available in an 8-pin VariPak flatpack. It is designed for operation from single supply of 5 V to 18 V and is offered in an extended temperature range of -40°C to +125°C. This amplifier can be used as an in-amp, voltage follower, or filter. This amplifier also offers high-frequency stability and an ultra-low-voltage noise production of 8 nV/√ Hz.

Working Principle of the OPA347UAG4

The OPA347UAG4 is a monolithic monolithic high-speed operational amplifier with internally-compensated transconductance. It is designed to operate from a single supply voltage from 5.25V up to 18V. It provides a low-noise wide bandwidth production of 1 MHz, high open-loop gain of 87 dB, and low offset voltage of only 0.2mV. The OPA347UAG4 is a single-supply amplifier characterized by high-frequency stability, wide small-signal bandwidths, low-voltage noise, and quiescent THD of -60 dB.

The OPA347UAG4 employs a unique high-voltage output stage design, a low-noise input stage, and a low-noise current-feedback circuit. This design permits high-output voltage swings, low-distortion, and high AC and DC precision along with wide small-signal bandwidths. To check output characteristics, the input of the amplifier should be connected to the inverting input of the amplifier and the output should be connected to the inverting input of the amplifier.

The OPA347UAG4 has high frequency stability and low-voltage noise performance, due to the design of its low-noise common-mode feedback network, which provides consistent noise levels even in the presence of varying supply levels. The amplifier also offers high slew rate, high supply rejection ratio and wide temperature range. Its fast settling times and wide voltage waveforms allow the device to be used in a variety of applications including differential input, current feedback and voltage feedback configurations.

Application Fields of the OPA347UAG4

The OPA347UAG4 is ideally suited for a variety of applications, such as professional audio, industrial control, instrumentation, test and measurement, automotive, and many more. It has a variety of features, such as high input impedance, high slew rate and wide bandwidth, that make it ideal for a number of applications in those industries. It is suitable for use in high-speed closed-loop systems, and can be used to drive capacitive loads. These amplifiers are also ideal for use in audio components, such as microphones and headphones, as well as in audio power amplifiers and power sources.

In the professional audio industry, the OPA347UAG4 is used for professional microphone preamplifiers. These amplifiers provide a low-noise, wide bandwidth, and precise gain control output. It is also typically used in studio-grade headphone amplifiers and in power amplifiers in professional sound systems. In addition, it is used in production line test and measurement systems, such as oscilloscopes and spectrum analyzers.

In industrial control, the OPA347UAG4 is popularly used for motor control and power supply applications, as it offers low-noise wide bandwidth and precise gain control. It is also used for motion control and for measurement of signals in power control systems, such as AC and DC power supplies. In automotive applications, the OPA347UAG4 is used for noise reduction and in sensor systems for engine, powertrain, and transmission control.

The OPA347UAG4 with its low-noise, wide bandwidth, and precision, provides excellent performance in these application fields. It is a reliable and easy to use monolithic operational amplifier that can handle a wide variety of tasks with precision and accuracy.