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MAX9120：SC70, 1.6V, Nanopower, Beyond-the-Rails Comparators With/Without Reference

The MAX9117–MAX9120 nanopower comparators in space-saving SC70 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1.6V. The MAX9117/MAX9118 feature an on-board 1.252V ±1.75% reference and draw an ultra-low supply current of only 600nA, while the MAX9119/MAX9120 (without reference) require just 350nA of supply current. These features make the MAX9117–MAX9120 family of comparators ideal for all 2-cell battery-monitoring/management applications. The unique design of the output stage limits supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators. This design also minimizes overall power consumption under dynamic conditions. The MAX9117/MAX9119 have a push-pull output stage that sinks and sources current. Large internal-output drivers allow rail-to-rail output swing with loads up to 5mA. The MAX9118/MAX9120 have an open-drain output stage that makes them suitable for mixed-voltage system design. All devices are available in the ultra-small 5-pin SC70 package.

Key Features Space-Saving SC70 Package (Half the Size of SOT23) Ultra-Low Supply Current 350nA Per Comparator (MAX9119/MAX9120) 600nA Per Comparator with Reference (MAX9117/MAX9118) Guaranteed to Operate Down to +1.6V Internal 1.252V ±1.75% Reference (MAX9117/MAX9118) Input Voltage Range Extends 200mV Beyond-the-Rails CMOS Push-Pull Output with ±5mA Drive Capability (MAX9117/MAX9119) Open-Drain Output Versions Available (MAX9118/MAX9120) Crowbar-Current-Free Switching Internal Hysteresis for Clean Switching No Phase Reversal for Overdriven Inputs

MAX9117, MAX9118, MAX9119, MAX9120: Typical Application Circuit Applications/Uses 2-Cell Battery Monitoring/Management Medical Instruments Mobile Communications Notebooks and PDAs Sensing at Ground or Supply Line Telemetry and Remote Systems Threshold Detectors/Discriminators Ultra-Low-Power Systems

DataSheet

Parametrics

Quality and Environmental Data

• MAX9120.pdf

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