Maxim Integrated MAX942EUA+T - High-Speed, Low-Power, Single/Dual/Quad Voltage Comparators

The MAX942EUA+T from Maxim Integrated is a precision voltage comparator known for its high-speed and low-power operation. This device is part of a family that includes single (MAX941), dual (MAX942), and quad (MAX944) comparators designed to operate from a single +2.7V to +5.5V supply or a dual ±1.35V to ±2.75V supply. The MAX942EUA+T, in particular, is a dual comparator provided in an 8-pin µMAX package, which is ideal for space-constrained applications.

These comparators are designed to have a fast propagation delay of just 80ns at a low supply current of 350µA per comparator. This combination of speed and low power consumption makes the MAX942EUA+T suitable for battery-powered devices, portable equipment, and other applications where power efficiency is crucial.

The device features a wide input common-mode voltage range that extends from the negative supply rail to within 1.5V of the positive supply rail, allowing for flexible design options. Additionally, the output stage is rail-to-rail, which provides the maximum possible dynamic range at the output. This is particularly useful in single-supply operations and when driving analog-to-digital converters (ADCs).

The MAX942EUA+T also includes a shutdown mode that reduces the supply current to just 2µA, further conserving power in systems where power management is essential. The comparator's outputs are push-pull, which eliminates the need for external pull-up resistors and simplifies interface with subsequent digital logic.

Applications for the MAX942EUA+T are diverse and include battery monitoring, window comparators, ADCs, threshold detectors, and zero-crossing detectors. Its combination of features makes it an excellent choice for designers looking for a reliable, high-performance comparator that does not compromise on power efficiency.

Overall, the MAX942EUA+T is a testament to Maxim Integrated's commitment to providing innovative, high-quality integrated circuits that meet the evolving demands of modern electronic systems.