MAX931-MAX934 19-0194 Rev 1 2/97 Ultra Low-Power, Low-Cost Comparators with 2% Reference General Description Features The MAX931-MAX934 single, dual, and quad micropower, Ultra-Low 4A Max Quiescent Current low-voltage comparators plus an on-board 2% accurate Over Extended Temp. Range (MAX931) reference feature the lowest power consumption available. Power Supplies: These comparators draw less than 4A supply current Single +2.5V to +11V over temperature (MAX931), and include an internal Dual 1.25V to 5.5V 1.182V 2% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current. Input Voltage Range Includes Negative Supply Ideal for 3V or 5V single-supply applications, the Internal 1.182V 2% Bandgap Reference MAX931-MAX934 operate from a single +2.5V to +11V Adjustable Hysteresis supply (or a 1.25V to 5V dual supply), and each TTL-/CMOS-Compatible Outputs comparators input voltage range extends from the negative supply rail to within 1.3V of the positive supply. 12s Propagation Delay (10mV Overdrive) The MAX931-MAX934s unique output stage continuously No Switching Crowbar Current sources as much as 40mA. And by eliminating power- 40mA Continuous Source Current supply glitches that commonly occur when comparators change logic states, the MAX931-MAX934 minimize Available in Space-Saving MAX Package parasitic feedback, which makes them easier to use. The single MAX931 and dual MAX932/MAX933 provide a Ordering Information unique and simple method for adding hysteresis without PART TEMP. RANGE PIN-PACKAGE feedback and complicated equations, using the HYST pin and two resistors. MAX931CPA 0C to +70C 8 Plastic DIP MAX931CSA 0C to +70C 8 SO For applications that require increased precision with similar power requirements, see the MAX921-MAX924 data MAX931CUA 0C to +70C 8 MAX sheet. These devices include a 1% precision reference. MAX931EPA -40C to +85C 8 Plastic DIP MAX931ESA -40C to +85C 8 SO INTERNAL COMPARATORS INTERNAL PACK- Ordering Information continued on last page. PART 2% PER HYSTERESIS AGE For similar devices guaranteed over the military temp. range, see REFERENCE PACKAGE the MAX921-MAX924 data sheet. The MAX931, MAX933, and 8-Pin MAX934 are pin-compatible with the 1% accurate MAX921, MAX931 Yes 1 Yes DIP/SO/ MAX923, and MAX924, respectively. The MAX932 and MAX MAX922 are not pin-compatible. 8-Pin MAX932 Yes 2 Yes DIP/SO/ Typical Operating Circuit MAX 8-Pin V IN MAX933 Yes 2 Yes DIP/SO/ 7 MAX V+ 3 IN+ 16-Pin MAX934 Yes 4 No DIP/SO OUT8 4 IN- Applications 5 HYST Battery-Powered Systems Threshold Detectors 6 REF MAX931 Window Comparators V- GND 21 Oscillator Circuits Alarm Circuits THRESHOLD DETECTOR Maxim Integrated Products 1 For free samples & the latest literature: Ultra Low-Power, Low-Cost Comparators with 2% Reference ABSOLUTE MAXIMUM RATINGS V+ to V-, V+ to GND, GND to V-................................-0.3V, +12V Continuous Power Dissipation (T = +70C) A Inputs 8-Pin Plastic DIP (derate 9.09mW/C above +70C) ...727mW Current, IN +, IN -, HYST...............................................20mA 8-Pin SO (derate 5.88mW/C above +70C)................471mW Voltage, IN +, IN -, HYST................(V+ + 0.3V) to (V- 0.3V) 8-Pin MAX (derate 4.1mW/C above +70C) .............330mW Outputs 16-Pin Plastic DIP (derate 10.53mW/C above +70C)..842mW Current, REF....................................................................20mA 16-Pin SO (derate 8.70mW/C above +70C) ................696mW Current, OUT .................................................................50mA Operating Temperature Ranges: Voltage, REF ....................................(V+ + 0.3V) to (V- 0.3V) MAX93 C .......................................................0C to +70C Voltage, OUT (MAX931/934) .....(V+ + 0.3V) to (GND 0.3V) MAX93 E .....................................................-40C to +85C Voltage, OUT (MAX932/933)..........(V+ + 0.3V) to (V- 0.3V) Storage Temperature Range .............................-65C to +150C OUT Short-Circuit Duration (V+ 5.5V) ...............Continuous Lead Temperature (soldering, 10sec) .............................+300C 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.) A MIN MAX PARAMETER CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS Supply Voltage Range (Note 1) 2.5 11 V T = +25C 2.5 3.2 A MAX931, HYST = REF C/E temp. ranges 4 T = +25C 3.1 4.5 A MAX932, HYST = REF C/E temp. ranges 6 Supply Current IN+ = IN- + 100mV A T = +25C 3.1 4.5 A MAX933, HYST = REF C/E temp. ranges 6 T = +25C 5.5 6.5 A MAX934 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) MAX931, MAX932, MAX933 0.02 nA Input Common-Mode Voltage Range V- V+ 1.3 V 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 MAX931, MAX932, MAX933 REF 0.05 REF V Overdrive = 10mV 12 Response Time T = +25C, 100pF load s A Overdrive = 100mV 4 2 MAX931-MAX934