General Description
The single MAX9015/MAX9016 and dual MAX9017–MAX9020 nanopower comparators in space-saving SOT23 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to 1.8V. The Agrade packages feature an on-board 1.236V ±1% reference, while the B-grade packages feature a 1.24V ±1.75% reference. An ultra-low supply current of 0.85µA (MAX9019/MAX9020), 1µA (MAX9015/MAX9016), or 1.2µA (MAX9017/MAX9018) makes the MAX9015–MAX9020 family of comparators ideal for all 2-cell battery monitoring/management applications.

FEATUREs
♦ Ultra-Low Total Supply Current
    0.85µA (MAX9019/MAX9020)
    1.0µA (MAX9015A/MAX9016A)
    1.2µA (MAX9017/MAX9018)
♦ Guaranteed Operation Down to 1.8V
♦ Precision VOS < 5mV (max)
♦ Internal 1.236V ±1% Reference (A Grade)
♦ Input Voltage Range Extends 200mV Beyond-the-Rails
♦ CMOS Push-Pull Output with ±6mA Drive Capability (MAX9015/MAX9017/MAX9019)
♦ Open-Drain Output Versions Available (MAX9016/MAX9018/MAX9020)
♦ Crowbar-Current-Free Switching
♦ Internal 4mV Hysteresis for Clean Switching
♦ No Phase Reversal for Overdriven Inputs
♦ Dual Versions in Space-Saving 8-Pin SOT23 Package

APPLICATIONs
    2-Cell Battery Monitoring/Management
    Ultra-Low Power Systems
    Mobile Communications
    Notebooks and PDAs
    Threshold Detectors/Discriminators
    Window Detectors
    Sensing at Ground or Supply Line
    Telemetry and Remote Systems
    Medical Instruments