Analog Devices Inc.

The MAX9117–MAX9120 nanopower comparators inspace-saving SC70 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to+1.6V. The MAX9117/MAX9118 feature an on-board1.252V ±1.75% reference and draw an ultra-low supplycurrent of only 600nA, while the MAX9119/MAX9120(without reference) require just 350nA of supply current.These features make the MAX9117–MAX9120 family ofcomparators ideal for all 2-cell battery-monitoring/managementapplications.The unique design of the output stage limits supply-currentsurges while switching, virtually eliminating the supplyglitches typical of many other comparators. Thisdesign also minimizes overall power consumption underdynamic conditions. The MAX9117/MAX9119 have apush-pull output stage that sinks and sources current.Large internal-output drivers allow rail-to-rail outputswing with loads up to 5mA. The MAX9118/MAX9120have an open-drain output stage that makes them suitablefor mixed-voltage system design. All devices areavailable in the ultra-small 5-pin SC70 package.Applications2-Cell Battery Monitoring/ManagementMedical InstrumentsMobile CommunicationsNotebooks and PDAsSensing at Ground or Supply LineTelemetry and Remote SystemsThreshold Detectors/DiscriminatorsUltra-Low-Power Systems