LF347N/NOPB

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The LF347N/NOPB is a dual, low power, general purpose operational amplifier (op amp) specifically designed for use in instrumentation, buffer amplifier, or other linear applications. It offers drastically reduced noise levels and improved stability over other standard op amps. Manufactured by Texas Instruments, the LF347N/NOPB is available in a wide variety of packages and on various production processes, including plastic, ceramic, and metal.

LF347N/NOPB Features

The LF347N/NOPB offers many features which make it an ideal amplifier. The unit has a wide supply voltage range of ±2 V to ±32 V and an input voltage range of 4.7V to 32V. Its pin out is extremely compact and its gain bandwidth is typically hundreds of kHz. In addition, the device offers excellent noise performance, with very low input bias current and input offset voltage, as well as a well balanced output shift.

LF347N/NOPB Applications

The LF347N/NOPB is an ideal amplifier for many different applications. Its low power consumption and wide voltage range make it an excellent choice for battery powered equipment. Additionally, its fast settling time and low input bias current make it ideal for acquiring and controlling signals—such as temperature, acceleration, and vibration—in precision instrumentation applications. Other uses include automotive, medical, and industrial control systems.

LF347N/NOPB Working Principle

The LF347N/NOPB is a direct-coupled, differential amplifier with gain determined by external feedback components. At the heart of the device is a differential amplifier with two active inputs, each of which can accept input signals of up to ±32V. These two inputs are then compared and the difference between them is amplified depending on the amount of external feedback. Depending on the polarity of the feedback components, the LF347N/NOPB can be configured as a unity gain follower, an inverting amplifier, or a non-inverting amplifier.

The LF347N/NOPB also features comprehensive over-voltage protection, which helps provide reliable operation in the presence of short circuits or power surges. As with all op amps, the LF347N/NOPB must be connected to a proper power source in order to function. Additionally, external feedback components must be properly connected in order to determine the amount of gain.

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