General Description
The MAX9021/MAX9022/MAX9024 single/dual/quad comparators are optimized for low-power consumption while still providing a fast output response. They are designed for single-supply applications from 2.5V to 5.5V, but can also operate from dual supplies. These comparators have a 3µs propagation delay and consume 2.8µA of supply current per comparator over the -40°C to +125°C operating temperature range. The combination of low-power, single-supply operation down to 2.5V, and ultra-small footprint makes these devices ideal for portable applications.

Features
♦ Low-Cost Solution Available in Space-Saving SC70 Packages (Half the Size of SOT23)
♦ Low 2.8µA Supply Current
♦ 3µs Propagation Delay
♦ Internal 4mV Comparator Hysteresis
♦ Comparator Output Swings Rail-to-Rail
♦ 2.5 to 5.5V Single-Supply Voltage Range
♦ No Phase Reversal for Overdriven Inputs
♦ Space-Saving Packages
    5-Pin SC70 (MAX9021)
    8-Pin SOT23 (MAX9022)
    8-Pin µMAX (MAX9022)
    14-Pin TSSOP (MAX9024)

Applications
    Battery-Powered Portable Systems
    Mobile Communications
    Sensor-Signal Detection
    Photodiode Preamps
    Digital Line Receivers
    Keyless Entry Systems
    Threshold Detectors/Discriminators