AD8561ARUZ-REEL

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The AD8561ARUZ-REEL is an adjustable precision low-power, single-supply CMOS rail-to-rail comparator from Analog Devices. It is a part of the Analog Devices family of precision rail-to-rail input/output comparators. This comparator is engineered to boast extreme low-power dissipation and outstanding low-offset performance, making it an ideal choice for demanding applications within a smaller form factor. It operates over a broad supply voltage range that ranges between 1.8V and 6V, spans input voltage ranges extending to within 200mV of each rail, and its maximum propagation delay is 7.3s.

The AD8561ARUZ-REEL comparator is designed to work reliably in harsh environmental conditions. With features like a high-impedance input buffer, low-power CMOS technology, and a low-offset design, it ensures very low power dissipation, excellent temperature compensation, incredibly low input current, and high open-loop gain without the need for an external resistor. This makes it the perfect choice for minimalistic microcontroller-based systems and ultra-low-power applications.

The heart of this comparator is its internal differential amplifier (IDAF). The IDAF operates on very low power and has incredibly fast response times. The quiescent current of the input transistors is matched to keep the offset voltage extremely low, helping to reduce the power consumption of the comparator. Additionally, the input impedance of the comparator is designed to match that of a real-world input to minimize possible interferences

The comparator features an open-collector output stage. This output stage features an active pull-down FET that helps to prevent overdrive current during fast switching operation. It also features a hysteresis voltage that can be adjusted externally with a resistor network. This hysteresis voltage helps to ensure clean transition when the input signals are noisy or transition slowly.

Common applications for the AD8561ARUZ-REEL include temperature control, level and security monitoring, aerospace systems, industrial control systems, and automotive applications. It is also useful in noise and glitch filtering circuits, circuitry for monitoring high-voltage systems and power transmission, voltage-current conversion, and any other application that requires a low-offset and low-power rail-to-rail comparator.

This device is able to offer a wide range of low-power dissipation and low-offset performance with its combination of advanced CMOS and low-power design. It is also extremely cost-effective and is the ideal choice for demanding applications that require high accuracy, low power consumption, and extremely low-offset performance.

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