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