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MAX984CPE Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX984CPE Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 17 page General Description The MAX971–MAX974 and MAX981–MAX984 single/ dual/quad low-voltage comparators feature the lowest power consumption available. These micropower devices draw less than 4µA supply current over temperature (MAX971/MAX972/MAX981/MAX982), and include an internal 1.182V ±1% (MAX971/MAX973/ MAX974) or ±2% (MAX981–MAX984) voltage reference and programmable hysteresis. Ideal for 3V or 5V single-supply applications, these devices operate from a single 2.5V to 11V supply (or ±1.25V to ±5.5V dual supplies), and each comparator’s input voltage ranges from the negative supply rail to within 1.3V of the positive supply. The single MAX971/MAX981 and the dual MAX973/ MAX982/MAX983 provide a unique, simple method for adding hysteresis without feedback or complicated equations, simply by using the HYST pin plus two resistors. The MAX971–MAX974 and MAX981–MAX984’s open- drain outputs permit wire-ORed configurations. Thanks to an 11V output range and separate GND pin for the output transistor (MAX971/MAX974, MAX981/MAX984), these devices are ideal for level translators and bipolar to single- ended converters. For similar devices with complementary output stages, see the MAX921–MAX924 (1% reference) and the MAX931–MAX934 (2% reference). Features o Available in Ultra-Small Packages: UCSP™ (MAX972) µMAX (MAX9_1/MAX9_2/MAX9_3) o Ultra-Low Quiescent Current (4µA, max) Over Extended Temp Range (MAX971/MAX981) o Power Supplies: Single 2.5V to 11V Dual ±1.25V to ±5.5V o Input Voltage Range Includes Negative Supply o Internal Bandgap Reference 1.182V ±1% (MAX97_) 1.182V ±2% (MAX98_) o 12µs Propagation Delay (10mV Overdrive) o Output Has Separate GND Pin (MAX9_1/MAX9_4) Applications Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators ________________________________________________________________________________________ 1 MAX971 MAX981 OUT IN+ HYST REF V- GND V+ 21 4 5 6 8 3 7 IN- THRESHOLD DETECTOR VIN Typical Operating Circuit 19-0450; Rev 3; 2/03 Ordering Information continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. MAX971 1% Yes 8-Pin DIP/SO/µMAX MAX972 None No 8-Pin UCSP/ DIP/SO/µMAX MAX973 1% Yes 8-Pin DIP/SO/µMAX MAX974 1% No 16-Pin DIP/SO MAX981 2% Yes 8-Pin DIP/SO/µMAX MAX982 2% Yes 8-Pin DIP/SO/µMAX MAX983 2% Yes 8-Pin DIP/SO/µMAX MAX984 2% No 16-Pin DIP/SO 1 2 2 4 1 2 2 4 Ordering Information For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN-PACKAGE MAX971CPA 0 °C to +70°C 8 Plastic Dip MAX971CSA 0 °C to +70°C 8 SO MAX971CUA 0 °C to +70°C 8 µMAX Battery-Powered Systems Threshold Detectors Window Comparators Level Translators Oscillator Circuits |
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