MAXIM INTEGRATED / ANALOG DEVICES MAX989ESA Low-Voltage Comparator

The MAX989ESA+ is a dual, low-voltage, micropower rail-to-rail I/O comparator housed in an 8-pin NSOIC package. It features low power consumption, with operating voltages ranging from 2.5V to 5.5V, making it suitable for both 3V and 5V systems, as well as ±1.25V to ±2.75V dual supplies. The comparator's design minimizes supply current surges during switching and reduces supply glitches common in other comparators. It has a push-pull output stage capable of sourcing and sinking current, with internal drivers that support rail-to-rail output swings up to 8mA. The device is ideal for applications such as battery-powered systems, zero crossing detectors, window comparators, level translators, threshold detectors, ground or supply sensing, IR receivers, and digital line receivers. Its common-mode input voltage can extend 250mV beyond the supply rails. It operates over an ambient temperature range of -40°C to 85°C, with a typical supply current of 80μA at 1MHz switching frequency. The comparator features no phase reversal even with overdriven inputs, excellent power supply rejection (80dB), and common-mode rejection (80dB). Internal hysteresis ensures clean switching even with slow input signals. The input bias current is approximately 1pA, and the typical input offset voltage is 0.5mV. At Vcc=2.7V, the device consumes about 11μA per comparator with a typical propagation delay of 300ns.

View MAX989ESADatasheet [pdf]

Buy the Maxim Series MAX989 Low-Voltage Comparator: MAX989ESA

Purchase the Maxim MAX989ESA now and benefit from a highly efficient, dual low-voltage comparator ideal for battery-powered systems, zero-crossing detection, level translation, and IR receiver applications. Its ultralow power consumption of just 80μA at 1MHz, rail-to-rail input/output, and wide operating voltage range from 2.5V to 5.5V make it suitable for portable, space-constrained designs. The device’s internal hysteresis, excellent power supply rejection of 80dB, and high-speed operation with a 300ns propagation delay ensure reliable, precise switching even with slow input signals and over a broad temperature range of -40°C to 85°C.

Buy Maxim MAX989ESA now and experience unmatched reliability and performance in low-voltage, rail-to-rail comparator applications for battery-powered systems.