MAX971MAX974/MAX981MAX984 19-0450 Rev 3 2/03 Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators General Description Features The MAX971MAX974 and MAX981MAX984 single/ Available in Ultra-Small Packages: dual/quad low-voltage comparators feature the lowest UCSP (MAX972) power consumption available. These micropower MAX (MAX9 1/MAX9 2/MAX9 3) devices draw less than 4A supply current over Ultra-Low Quiescent Current (4A, max) temperature (MAX971/MAX972/MAX981/MAX982), and Over Extended Temp Range (MAX971/MAX981) include an internal 1.182V 1% (MAX971/MAX973/ Power Supplies: MAX974) or 2% (MAX981MAX984) voltage reference Single 2.5V to 11V and programmable hysteresis. Dual 1.25V to 5.5V Ideal for 3V or 5V single-supply applications, these Input Voltage Range Includes Negative Supply devices operate from a single 2.5V to 11V supply (or 1.25V to 5.5V dual supplies), and each comparators Internal Bandgap Reference input voltage ranges from the negative supply rail to within 1.182V 1% (MAX97 ) 1.3V of the positive supply. 1.182V 2% (MAX98 ) The single MAX971/MAX981 and the dual MAX973/ 12s Propagation Delay (10mV Overdrive) MAX982/MAX983 provide a unique, simple method for adding hysteresis without feedback or complicated Output Has Separate GND Pin (MAX9 1/MAX9 4) equations, simply by using the HYST pin plus two Applications resistors. Battery-Powered Window Comparators The MAX971MAX974 and MAX981MAX984s open- Systems drain outputs permit wire-ORed configurations. Thanks to Level Translators an 11V output range and separate GND pin for the output Threshold Detectors Oscillator Circuits transistor (MAX971/MAX974, MAX981/MAX984), these devices are ideal for level translators and bipolar to single- Ordering Information ended converters. For similar devices with complementary output stages, see the MAX921MAX924 (1% reference) PART TEMP RANGE PIN-PACKAGE and the MAX931MAX934 (2% reference). MAX971CPA 0C to +70C 8 Plastic Dip MAX971CSA 0C to +70C 8 SO MAX971CUA 0C to +70C 8 MAX Ordering Information continued at end of data sheet. Typical Operating Circuit V 8-Pin IN MAX971 1% 1 Yes DIP/SO/MAX 7 8-Pin UCSP/ V+ MAX972 None 2 No DIP/SO/MAX 3 IN+ 8-Pin OUT 8 MAX973 1% 2 Yes DIP/SO/MAX 4 IN- MAX974 1% 4 No 16-Pin DIP/SO HYST 5 8-Pin MAX981 2% 1 Yes DIP/SO/MAX MAX971 6 REF 8-Pin MAX981 MAX982 2% 2 Yes DIP/SO/MAX GND V- 21 8-Pin MAX983 2% 2 Yes DIP/SO/MAX THRESHOLD DETECTOR MAX984 2% 4 No 16-Pin DIP/SO UCSP is a trademark of Maxim Integrated Products, Inc. 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. PART INTERNAL PRECISION REFERENCE COMPARATORS PER PACKAGE INTERNAL HYSTERESIS PACKAGE Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators ABSOLUTE MAXIMUM RATINGS V+ to V-, V+ to GND, GND to V-................................-0.3V, +12V 8-Pin Plastic DIP (derate 9.09mW/C above +70C) ...727mW Inputs 8-Pin SO (derate 5.88mW/C above +70C)................471mW Current: IN +, IN -, HYST..............................................20mA 8-Pin MAX (derate 4.1mW/C above +70C) .............330mW Voltage: IN +, IN -, HYST ...............(V+ + 0.3V) to (V- - 0.3V) 16-Pin Plastic DIP (derate 10.53mW/C above +70C)..842mW Outputs 16-Pin SO (derate 8.70mW/C above +70C) ................696mW Current: REF...................................................................20mA Operating Temperature Ranges OUT ................................................................50mA MAX97 C /MAX98 C ..................................0C to +70C Voltage: REF ....................................(V+ + 0.3V) to (V- - 0.3V) MAX97 E /MAX98 E ...............................-40C to +85C OUT (MAX9 1/9 4)..................12V to (GND - 0.3V) Storage Temperature Range .............................-65C to +150C (MAX9 2/9 3).......................12V to (V- - 0.3V) Lead Temperature (soldering, 10s) .................................+300C OUT Short-Circuit Duration ..................................Continuous Bump Temperature (soldering) Continuous Power Dissipation (T = +70C) Reflow ..........................................................................+235C A 8-Bump UCSP (derate 4.7mW/C above +70C) ........379mW 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 CHARACTERISTICS5V OPERATION (V+ = 5V, V- = GND = 0V, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 1) A MIN MAX A PARAMETER CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS Supply Voltage Range (Note 2) 2.5 11 V Output Voltage Range 0 11 V T = +25C 2.5 3.2 MAX9 1, A HYST = REF C/E temp ranges 4 T = +25C 2.5 3.2 A MAX972 IN+ = IN- + C/E temp ranges 4 Supply Current 100mV A MAX982/ T = +25C 3.1 4.5 A MAX9 3, C/E temp ranges 6 HYST = REF T = +25C 5.5 6.5 A MAX9 4 C/E temp ranges 8.5 COMPARATOR Input Offset Voltage V = 2.5V 10 mV CM Input Leakage Current (IN-, IN+) IN+ = IN- = 2.5V C/E temp ranges 0.01 5 nA Input Leakage Current (HYST) MAX9 1/MAX982/MAX9 3 0.02 nA Input Common-Mode Voltage V- V+ - 1.3 V Range Common-Mode Rejection Ratio V- to (V+ - 1.3V) 0.1 1.0 mV/V Power-Supply Rejection Ratio V+ = 2.5V to 11V 0.1 1.0 mV/V Voltage Noise 100Hz to 100kHz 20 V RMS Hysteresis Input Voltage Range MAX9 1/MAX982/MAX9 3 REF - 0.05 REF V Overdrive = 10mV 12 Response Time (High-to-Low T = +25C, 100pF load, A s Transition) 1M pullup to V+ Overdrive = 100mV 4 Response Time (Low-to-High T = +25C, 100pF load, 1M pullup to V+ 300 s A Transition) (Note 3) 2 MAX971MAX974/MAX981MAX984