AD548KN

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The AD548KN is a versatile amplifier that can be used across multiple linear and instrumentation applications. It is designed to provide low noise, high linearity, and excellent dynamic range. The AD548KN is a low noise, high gain and low harmonic distortion amplifier. It is ideal for use in audio, instrumentation, and general-purpose applications where high input impedance and wide bandwidth are needed.

The core principle of operation of the AD548KN amplifier is based on negative feedback. Negative feedback reduces the amplifier’s open-loop gain, reduces distortion and increases stability. The overall gain of negative feedback systems is determined by the ratio of the feedback resistor to the output resistor (Rf/Rout). With the AD548KN, this ratio is set at 2.5/1. A low open-loop gain is preferred to limit amplifier gain and reduce noise.

The AD548KN features a wide bandwidth of 6 MHz and a low distortion of 0.0003%. It has a low noise figure of 0.9uV, which is suitable for low-level signals. It also has excellent common-mode rejection of 84dB, which is excellent for rejecting signal noise. The input impedance is 1Mohm and the input voltage range is -2/2.3V. The AD548KN has an output voltage range of -2/2V.

The AD548KN is ideal for the following applications:

• High-impedance buffer amplifier
• Instrumentation amplifier
• Precision active filter
• Voltage follower
• Low-level signal conditioning
• High precision current-to-voltage converter
• High precision differential transducer

In addition to its use in linear amplifier applications, the AD548KN is also suitable for instrumentation, operational amplifier (Op Amp) and buffer amplifier applications. It can be used as a unity gain buffer amplifier, as part of an instrumentation amplifier, or as a differential amplifier. The AD548KN can be used to provide high precision current-to-voltage conversion, for use in high precision transducers or for commanding precision servo systems.

The AD548KN amplifier is capable of delivering excellent noise and distortion performance, making it well-suited for applications where high-precision audio or electrical measurements need to be made. It is also a suitable choice for applications that require high input impedance, low distortion, and wide bandwidth.

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