General Description

The MAX987/MAX988/MAX991/MAX992/MAX995/MAX996 single/dual/quad micropower comparators feature low-voltage operation and rail-to-rail inputs and outputs. Their operating voltage ranges from +2.5V to +5.5V, making them ideal for both 3V and 5V systems. These comparators also operate with ±1.25V to ±2.75V dual supplies. They consume only 48μA per comparator while achieving a 120ns propagation delay.

Input bias current is typically 1.0pA, and input offset voltage is typically 0.5mV. Internal hysteresis ensures clean output switching, even with slow-moving input signals.

Features

? 120ns Propagation Delay

? 48μA Quiescent Supply Current

? +2.5V to +5.5V Single-Supply Operation

? Common-Mode Input Voltage Range Extends

?? 250mV Beyond the Rails

? Push-Pull Output Stage Sinks and Sources

?? 8mA Current (MAX987/MAX991/MAX995)

? Open-Drain Output Voltage Extends Beyond VCC

?? (MAX988/MAX992/MAX996)

? Unique Output Stage Reduces Output Switching

?? Current, Minimizing Overall Power Consumption

? 100μA Supply Current at 1MHz Switching

?? Frequency

? No Phase Reversal for Overdriven Inputs

? Available in Space-Saving Packages:

?? 5-Pin SOT23 (MAX987/MAX988)

?? 8-Pin μMAX (MAX991/MAX992)

Applications

?? Portable/Battery Powered Systems

?? Mobile Communications

?? Zero-Crossing Detectors

?? Window Comparators

?? Level Translators

?? Threshold Detectors/Discriminators

?? Ground/Supply Sensing

?? IR Receivers

?? Digital Line Receivers