AD8656ARZ-REEL

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The AD8656ARZ-REEL is a general-purpose linear instrumentation amplifier and is part of the AD8656ARZ family of low noise, relatively low distortion, and high-accuracy components, which include precision op amps and buffer amplifiers. This amplifier is ideal for applications where precision and low noise are desired, such as low-level data acquisition, spectrum analysis, and audio applications.The AD8656ARZ-REEL is designed to ensure accuracy and linearity in low to medium frequency and high input impedance applications. It can handle up to ±4 V outputs without distortion, and its wide bandwidth and high input resistance make it ideal for many low noise and precision applications. The AD8656ARZ-REEL also provides power-down protection to prevent overvoltage or undershooting problems when powering down or up.

The AD8656ARZ-REEL contains a pair of complementary bipolar junction transistors (BJTs) that have a wide common-mode input range and high common-mode rejection ratio, making it useful for many low-noise, low-distortion applications. The BJTs are arranged in a "balanced" configuration so that even-order harmonic distortion products are cancelled out when the input signal is centered on 0-volts, allowing the part to operate with minimal distortion even under severe conditions. Additionally, the part features a built-in noise-cancellation circuitry that slowly varies the emitter resistor values on the two BJTs to reduce the power supply noise that can affect the signals.

The AD8656ARZ-REEL can also be easily configured for low output impedance, low distortion, and high gain. The symmetrical input stage couples the input transistors in a "divide-by-two" configuration and also provides a low impedance output, reducing the current draw and improving the overall distortion. It also features an internal trim resistor network, which can be used to adjust the feedback to achieve tighter stability, higher precision and better linearity.

Another useful feature of the AD8656ARZ-REEL is its capability to deliver high frequency output signals. With an external capacitor, the part can provide output signals up to 30 MHz. This makes it suitable for applications requiring high frequency signal transmission. Additionally, it has a low voltage noise of 1.0nV/√Hz and a low input voltage noise of 0.15nV/√Hz, making it suitable for low noise applications such as audio, RF, and analog data acquisition.

In summary, the AD8656ARZ-REEL is a versatile and cost-effective component that is suitable for many linear amplifiers, instrumentation, op amp, and buffer applications, including low-noise, high-precision signal chains such as audio, RF, and analog data acquisition. Its low noise, low distortion, and wide input-bandwidth characteristics make it ideal for these applications. Additionally, its integrated trim resistor network and its high frequency output integration make the AD8656ARZ-REEL a very popular component for precision linear applications.

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