MAX917MAX920 19-1512 Rev 2 10/10 SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference General Description Features Ultra-Low Supply Current The MAX917MAX920 nanopower comparators in 380nA per Comparator (MAX919/MAX920) space-saving SOT23 packages feature Beyond-the- 750nA per Comparator with Reference Rails inputs and are guaranteed to operate down to (MAX917/MAX918) +1.8V. The MAX917/MAX918 feature an on-board Guaranteed to Operate Down to +1.8V 1.245V 1.5% reference and draw an ultra-low supply current of only 750nA, while the MAX919/MAX920 (with- Internal 1.245V 1.5% Reference out reference) require just 380nA of supply current. (MAX917/MAX918) These features make the MAX917MAX920 family of Input Voltage Range Extends 200mV comparators ideal for all 2-cell battery applications, Beyond-the-Rails including monitoring/management. CMOS Push-Pull Output with 8mA Drive The unique design of the output stage limits supply-cur- Capability (MAX917/MAX919) rent surges while switching, virtually eliminating the Open-Drain Output Versions Available supply glitches typical of many other comparators. This (MAX918/MAX920) design also minimizes overall power consumption Crowbar-Current-Free Switching under dynamic conditions. The MAX917/MAX919 have Internal Hysteresis for Clean Switching a push-pull output stage that sinks and sources current. Large internal output drivers allow rail-to-rail output No Phase Reversal for Overdriven Inputs swing with loads up to 8mA. The MAX918/MAX920 Space-Saving SOT23 Package have an open-drain output stage that makes them suit- Ordering Information able for mixed-voltage system design. TOP PKG PART PIN-PACKAGE MARK CODE Applications ADIQ MAX917EUK+T 5 SOT23 U5+1 2-Cell Battery Monitoring/Management MAX917ESA+ 8 SO S8+2 Ultra-Low-Power Systems ADIR MAX918EUK+T 5 SOT23 U5+1 Mobile Communications MAX918ESA+ 8 SO S8+2 Notebooks and PDAs ADIS MAX919EUK+T 5 SOT23 U5+1 Threshold Detectors/Discriminators MAX919EUK/V+T 5 SOT23 AFGP U5+1 Sensing at Ground or Supply Line MAX919ESA+ 8 SO S8+2 ADIT MAX920EUK+T 5 SOT23 U5+1 Telemetry and Remote Systems MAX920ESA+ 8 SO S8+2 Medical Instruments Note: All devices are specified over the -40C to +85C operating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. Selector Guide /V denotes an automotive qualified part. Pin Configurations SUPPLY INTERNAL OUTPUT PART CURRENT REFERENCE TYPE TOP VIEW (nA) MAX917 Yes Push-Pull 750 OUT 1 5 V CC MAX918 Yes Open-Drain 750 MAX919 No Push-Pull 380 MAX917 V 2 EE MAX918 MAX920 No Open-Drain 380 MAX919 MAX920 Typical Application Circuit appears at end of data sheet. IN+ 3 4 IN- (REF) SOT23 ( ) ARE FOR MAX917/MAX918. Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc. Pin Configurations continue at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference ABSOLUTE MAXIMUM RATINGS Supply Voltage (V to V )..................................................+6V Continuous Power Dissipation (T = +70C) CC EE A Voltage Inputs (IN+, IN-, REF) .........(V - 0.3V) to (V + 0.3V) 5-Pin SOT23 (derate 7.31mW/C above +70C).........571mW EE CC Current Into Input Pins......................................................20mA 8-Pin SO (derate 5.88mW/C above +70C)...............471mW Output Voltage Operating Temperature Range ...........................-40C to +85C MAX917/MAX919........................(V - 0.3V) to (V + 0.3V) Storage Temperature Range .............................-65C to +150C EE CC MAX918/MAX920 ......................................(V - 0.3V) to +6V Lead Temperature (soldering, 10s) .................................+300C EE Output Current..................................................................50mA Soldering Temperature (reflow) .......................................+260C Output Short-Circuit Duration .............................................10sec Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICSMAX917/MAX918 (V = +5V, V = 0V, V = V , T = -40C to +85C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) CC EE IN+ REF A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range V Inferred from the PSRR test 1.8 5.5 V CC V = 1.8V 0.75 CC Supply Current I T = +25C 0.80 1.30 A A CC V = 5V CC T = T to T 1.60 A MIN MAX IN+ Voltage Range V Inferred from the output swing test V - 0.2 V + 0.2 V IN+ EE CC T = +25C 15 A Input Offset Voltage V (Note 2) mV OS T = T to T 10 A MIN MAX Input-Referred Hysteresis V (Note 3) 4 mV HB T = +25C 0.15 1 A Input Bias Current I nA B T = T to T 2 A MIN MAX Power-Supply Rejection Ratio PSRR V = 1.8V to 5.5V 0.1 1 mV/V CC T = +25C 190 400 A MAX917 only, V = CC 5V, I = 8mA SOURCE T = T to T 500 A MIN MAX Output-Voltage Swing High V - V mV CC OH T = +25C 55 200 MAX917 only, V = A CC 1.8V, I = 1mA SOURCE T = T to T 300 A MIN MAX T = +25C 190 400 A V = 5V, CC I = 8mA SINK T = T to T 500 A MIN MAX Output-Voltage Swing Low V mV OL T = +25C 55 200 V = 1.8V, A CC I = 1mA SINK T = T to T 300 A MIN MAX Output Leakage Current I MAX918 only, V = 5.5V 0.001 1 A LEAK O V = 5V 95 CC Sourcing, V = V O EE V = 1.8V 8 CC Output Short-Circuit Current I mA SC V = 5V 98 CC Sinking, V = V O CC V = 1.8V 10 CC 2 MAX917MAX920