General Description

The MAX985/MAX986/MAX989/MAX990/MAX993/MAX994 single/dual/quad micropower comparators feature low-voltage operation and rail-to-rail inputs and outputs. Their operating voltages range 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 11μA of supply current while achieving a 300ns propagation delay.

Features

? 11μA Quiescent Supply Current

? 2.5V to 5.5V Single-Supply Operation

? Common-Mode Input Voltage Range Extends 250mV Beyond the Rails

? 300ns Propagation Delay

? Push-Pull Output Stage Sinks and Sources 8mA Current (MAX985/MAX989/MAX993)

? Open-Drain Output Voltage Extends Beyond VCC (MAX986/MAX990/MAX994)

? Unique Output Stage Reduces Output Switching Current, Minimizing Overall Power Consumption

? 80μA Supply Current at 1MHz Switching Frequency

? No Phase Reversal for Overdriven Inputs

? Available in Space-Saving Packages:

?? UCSP (MAX985)

?? SOT23 (MAX985/MAX986/MAX989/MAX990)

?? μMAX? (MAX989/MAX990)

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Applications

? Portable/Battery Powered Systems

? Mobile Communications

? Zero-Crossing Detectors

? Window Comparators

? Level Translators

? Threshold Detectors/Discriminators

? Ground/Supply-Sensing Applications

? IR Receivers

? Digital Line Receivers

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