AD8557ACPZ-REEL

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The AD8557ACPZ-REEL is a low offset, low power current feedback instrumental amplifiers with high speed. It is a cost effective and highly reliable part ideal for precision instrumentation applications.

The AD8557ACPZ-REEL features a wide gain bandwidth product (GBWP) of 0.6 GHz, a maximum temperature coefficient of 94 µV/°C, and a supply current of 3.2 mA. Its common-mode input voltage includes ground, and it is capable of driving a capacitive load of up to 4pF. It also has a unity-gain stable bandwidth of 4.2 MHz and a slew rate of 13 V/μs. These features make the AD8557ACPZ-REEL ideal for use in high speed signal conditioning applications requiring a low offset, wide gain bandwidth and low power.

This current feedback operational amplifier is a fully differential operational amplifier, commonly used in linear instrumentation, signal filtering, gain control, and sensing amplifier applications. The AD8557ACPZ-REEL provides a rail-to-rail input and output common-mode range, allowing it to be used from a low single supply rail or from split supplies. It also incorporates an adjustable common-mode voltage that allows the input voltage range to be shifted for biasing active loads or for controlling input signal range.

The AD8557ACPZ-REEL is used as an instrumentation amplifier because of its high gain accuracy and high immunity to noise. The output is highly immune to physical distortions, such as cable lengths, environmental disturbances, and other disturbances that can significantly affect the accuracy of the gain or linearity of the amplifier. Additionally, it offers less distortion by preserving signal integrity and improved gain accuracy even in environments with high noise levels.

The AD8557ACPZ-REEL has a unique differential input stage, providing a high common-mode rejection ratio, low input offset voltage, and a wide input dynamic range. Its current feedback amplifier topology provides gain optimization without reducing output accuracy or providing unbalanced frequency responses. The AD8557ACPZ-REEL’s differential inputs also provide a wide common-mode rejection ratio (CMRR) of 82dB at 0.1 MHz and low noise. The amplifier’s wide input dynamic range allows it to be used for precision signal measurements.

The AD8557ACPZ-REEL is designed for a supply voltage range of 3V to 36V, and is available in both the SOT and MSOP-10 packages. It is offered in the space saving SMD footprints of 3.13mm x 3.42mm and 2.2mm x 3.3mm. It can also be used over temperature range from –40° to 125°C.

In summary, the AD8557ACPZ-REEL is an ideal choice for applications requiring high speed, low power and low offset current feedback amplifiers. It combines a wide range of features, providing a cost effective solution for precision instrumentation applications.

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