AD8138ARM

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The AD8138ARM is a low cost special purpose amplifier, introduced by Analog Devices in 2003. It features an optimal combination of low noise, wide bandwidth, high gain and low distortion characteristics, making it an ideal solution for a range of applications from high precision audio, telecommunications and medical applications, to industrial instrumentation.

The AD8138ARM is a wideband, low distortion amplifier, specifically designed for low frequency (LF) to mid frequency (MF) applications. It has a noise performance of 15nV/√Hz and a bandwidth of >1 MHz, making it suitable for even the most demanding signal processing tasks. The high power output capability and low output current ensures reliable performance and the extremely low distortion characteristics make it the ideal choice for applications where high quality audio signals have to be amplified and transmitted free from distortion.

The AD8138ARM employs a bipolar, three-stage amplifier topology, which provides both high linearity and an excellent signal-to-noise ratio. The output stage is composed of a differential pair, which provides excellent linearity and reduces the DC drift. The first stage consists of an common-collector amplifier with high open-loop gain, which provides wide bandwidth and high gain. This topology ensures low noise and low distortion, with a signal-to-noise ratio of 99dB. The amplifier also includes an internal level shift for higher output swing and power supply rejection.

The AD8138ARM operates in either single-ended or differential configurations and is capable of providing up to +15.5 dB of gain and a signal-to-noise ratio of greater than 99 dB. The use of high-precision current sources and matched amplifier topology make it ideal for the most demanding audio applications, such as audio equipment and instrumentation. Due to its excellent operation in dynamic range and power, the amplifier can be used for high-power applications such as automotive systems, industrial audio systems and amplifiers for laptop and desktop computers.

The AD8138ARM is also a very versatile amplifier and can be used in a wide variety of applications. It is well suited to applications such as data acquisition systems, communications systems, instuments, industrial systems, medical instrumentation, RF amplifiers and audio systems. Its wide, low distortion bandwidth makes it the ideal choice for any application that requires an amplifier with excellent linearity, low noise and wide bandwidth.

The AD8138ARM is a versatile and cost-effective solution for many applications, which can be used in a range of operating conditions. Its low noise, distortion, and power output make it ideal for a wide range of audio, telecoms and medical applications, while its high-precision current sources and matched amplifier topology also make it suitable for high power applications.

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