AD8663ACPZ-REEL

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The AD8663ACPZ-REEL is a linear, instrumentation, operational amplifier that enables precision power amplification of signals. This low-noise amplifier is based on a unique topology in which the common-mode and power-supply rejection are optimized to further reduce unwanted noise and distortion. The AD8663ACPZ-REEL is an ideal choice for applications that require a high common-mode ratio such as medical electrical equipment, home auto diagnosis, and communications systems.

The AD8663ACPZ-REEL is a single-ended, differential output, low-noise amplifier. Its input stage is a single differential pair which is followed by a common-mode gain stage. Its power-supply rejection ratio is also very good, resulting in lower noise and improved performance in applications that require a high common-mode ratio. In addition, the AD8663ACPZ-REEL has an adjustable gain up to +30dB. This amplifier can also be operated with a single 1.8V supply.

The working principle of the AD8663ACPZ-REEL is straightforward. The amplifier has two inputs: one is a differential input, and the other is a single-ended input. The differential input is provided to allow for the maximum signal swing while the single-ended input provides the bias current to the active devices. The differential input and the single-ended input are then connected to the two internal stages of the amplifier: a differential amplifier stage and a common-mode gain stage. The differential amplifier stage amplifies the differential signal from the input, while the common-mode gain stage amplifies the common-mode signal from both inputs and converts it to single-ended output.

The output of the differential amplifier is then amplified further via the common-mode gain stage. The common-mode gain stage is a balanced amplifier which provides improved power-supply rejection and better common-mode rejection. In addition, the amplifier has a noise figure of 0.5dB and a high common-mode rejection ratio of 80dB. This means that the amplifier is capable of rejecting noise from the power supply and from external sources.

The AD8663ACPZ-REEL amplifier has a wide range of applications including medical electrical equipment and home auto diagnosis, communications systems, and precision signal amplification. This amplifier is suitable for standard power supply voltages, and its adjustable gain makes it ideal for applications that require precise signal amplification. In addition, the low noise and precise signal amplification make the AD8663ACPZ-REEL the ideal choice for applications that require high common-mode ratios and power-supply rejection ratios.

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