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MAX924EPE Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX924EPE Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 17 page _______________General Description The MAX921–MAX924 single, dual, and quad micro- power, low-voltage comparators feature the lowest power consumption available. These comparators draw less than 4µA supply current over temperature (MAX921/MAX922), and include an internal 1.182V ±1% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current. Ideal for 3V or 5V single-supply applications, the MAX921–MAX924 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator’s input voltage range swings from the negative supply rail to within 1.3V of the positive supply. The MAX921–MAX924’s unique output stage con- tinuously sources as much as 40mA. And by eliminating power-supply glitches that commonly occur when com- parators change logic states, the MAX921–MAX924 minimize parasitic feedback, which makes them easier to use. The single MAX921 and dual MAX923 provide a unique and simple method for adding hysteresis without feedback and complicated equations, simply by using the HYST pin and two resistors. ________________________Applications Battery-Powered Systems Threshold Detectors Window Comparators Oscillator Circuits ____________________________Features ♦ µMAX® Package—Smallest 8-Pin SO (MAX921/MAX922/MAX923) ♦ Ultra-Low 4µA Max Quiescent Current Over Extended Temp. Range (MAX921) ♦ Power Supplies: Single +2.5V to +11V Dual ±1.25V to ±5.5V ♦ Input Voltage Range Includes Negative Supply ♦ Internal 1.182V ±1% Bandgap Reference ♦ Adjustable Hysteresis ♦ TTL/CMOS-Compatible Outputs ♦ 12µs Propagation Delay (10mV Overdrive) ♦ No Switching Crowbar Current ♦ 40mA Continuous Source Current Ordering Information continued at end of data sheet. *Dice are tested at TA = +25°C, DC parameters only. **Contact factory for availability. Ultra Low-Power, Single/Dual-Supply Comparators ________________________________________________________________ Maxim Integrated Products 1 MAX921 OUT IN+ HYST REF V- GND V+ 21 4 5 6 8 3 7 IN- THRESHOLD DETECTOR VIN __________Typical Operating Circuit 19-0115; Rev 6; 4/09 PART TEMP RANGE PIN-PACKAGE MAX921CPA 0°C to +70°C 8 Plastic DIP MAX921CSA 0°C to +70°C 8 SO MAX921C/D 0°C to +70°C Dice* MAX921 Yes 1 Yes 8-Pin DIP/SO/µMAX MAX922 No 2 No 8-Pin DIP/SO/µMAX MAX923 Yes 2 Yes 8-Pin DIP/SO/µMAX MAX924 Yes 4 No 16-Pin DIP/SO/µMAX MAX921EPA -40°C to +85°C 8 Plastic DIP MAX921ESA -40°C to +85°C 8 SO MAX921MJA -55°C to +125°C 8 CERDIP MAX921CUA 0°C to +70°C 8 µMAX For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. Ordering Information µMAX is a registered trademark of Maxim Integrated Products, Inc. |
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