MAX9021/MAX9022/MAX9024 19-1842 Rev 2 1/07 Micropower, Ultra-Small, Single/Dual/Quad, Single-Supply Comparators General Description Features The MAX9021/MAX9022/MAX9024 single/dual/quad Low-Cost Solution Available in Space-Saving comparators are optimized for low-power consumption SC70 Packages (Half the Size of SOT23) while still providing a fast output response. They are Low 2.8A Supply Current designed for single-supply applications from 2.5V to 5.5V, but can also operate from dual supplies. These 3s Propagation Delay comparators have a 3s propagation delay and con- Internal 4mV Comparator Hysteresis sume 2.8A of supply current per comparator over the -40C to +125C operating temperature range. The Comparator Output Swings Rail-to-Rail combination of low-power, single-supply operation 2.5 to 5.5V Single-Supply Voltage Range down to 2.5V, and ultra-small footprint makes these devices ideal for portable applications. No Phase Reversal for Overdriven Inputs The MAX9021/MAX9022/MAX9024 have 4mV of built-in Space-Saving Packages hysteresis to provide noise immunity and prevent oscil- 5-Pin SC70 (MAX9021) lations even with a slow-moving input signal. The input 8-Pin SOT23 (MAX9022) common-mode range extends from the negative supply 8-Pin MAX (MAX9022) to within 1.1V of the positive supply. The design of the comparator-output stage substantially reduces switch- 14-Pin TSSOP (MAX9024) ing current during output transitions, eliminating power- supply glitches. Ordering Information The MAX9021 single comparator is available in tiny 5- pin SC70 and SOT23 packages. The MAX9022 dual PIN- PKG PART TEMP RANGE comparator is available in 8-pin SOT23, MAX , and PACKAGE CODE SO packages, and the MAX9024 quad comparator is 5 SC70-5 MAX9021AXK-T -40C to +125C X5-1 available in 14-pin TSSOP and SO packages. 5 SOT23-5 MAX9021AUK-T -40C to +125C U5-1 Applications 8 SOT23-8 MAX9022AKA-T -40C to +125C K8-5 8 MAX MAX9022AUA -40C to +125C U8-1 Battery-Powered Digital Line Receivers 8 SO MAX9022ASA -40C to +125C S8-2 Portable Systems Keyless Entry Systems 14 TSSOP MAX9024AUD -40C to +125C U14-1 Mobile Communications Threshold Detectors/ 14 SO MAX9024ASD -40C to +125C S14-2 Sensor-Signal Detection Discriminators Typical Application Circuit appears at end of data sheet. Photodiode Preamps Pin Configurations TOP VIEW OUTA 1 14 OUTD OUTA 1 8 V IN+15V DD DD INA- 2 13 IND- INA- 2 7 OUTB MAX9021 MAX9022 INA+ 3 12 IND+ V 2 SS INA+ 3 6 INB- V 4 MAX9024 11 V DD SS V 4 5 INB+ SS INB+ 5 10 INC+ IN-34 OUT INB- 6 9 INC- S0T23/MAX/SO SC70/SOT23 OUTB 7 8 OUTC TSSOP/SO MAX is a registered trademark of Maxim Integrated Products, Inc. Maxim Integrated Products 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.Micropower, Ultra-Small, Single/Dual/Quad, Single-Supply Comparators ABSOLUTE MAXIMUM RATINGS Supply Voltage (V to V ) ....................................-0.3V to +6V 8-Pin MAX (derate 4.5mW/C above +70C) ..............362mW DD SS Voltage Inputs (IN+, IN- to V )...............-0.3V to (V + 0.3V) 8-Pin SO (derate 5.88mW/C above +70C).................471mW SS DD Differential Input Voltage (IN+ to IN-)....................................6.6V 14-Pin TSSOP (derate 9.1mW/C above +70C) ..........727mW Current into Input Pins......................................................20mA 14-Pin SO (derate 8.3mW/C above +70.......................667mW Output Short-Circuit Duration ..................2s to Either V or V Operating Temperature Range DD SS Current into Any Pin ............................................................20mA Automotive Application...................................-40C to +125C Continuous Power Dissipation (T = +70C) Junction Temperature......................................................+150C A 5-Pin SC70 (derate 3.1mW/C above +70C)...............247mW Storage Temperature Range .............................-65C to +150C 5-Pin SOT23 (derate 7.1mW/C above +70C).............571mW Lead Temperature (soldering, 10s) .................................+300C 8-Pin SOT23 (derate 9.1mW/C above +70C).............727mW 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 CHARACTERISTICS (V = 5V, V = 0, V = 0, T = -40C to +125C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) DD SS CM A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 2.5 Operating Voltage Range V Guaranteed by PSRR test 5.5 V DD S upp l y Cur r ent Per C om p arat or I 2.8 5 A DD Input Offset Voltage V (Note 2) 1 8mV OS Input Offset Voltage TCV 1 V/C OS Temperature Coefficient Hysteresis (Note 3) 4 mV Input Bias Current I 380 nA BIAS Input Offset Current I 2 60 nA OS Common-Mode Voltage Range V Guaranteed by CMRR test V V - 1.1 V CM SS DD C om m on-M ode R ejecti on Ratio CMRR V V ( V - 1.1V) , V = 5.5V 70100 dB S S C M D D D D Power-Supply Rejection Ratio PSRR V = 2.5V to 5.5V 60 80 dB DD I = 10A 2 V = V - V SOURCE OH DD OUT, (V - V ) 20mV IN+ IN- I = 4mA 160 400 SOURCE Output-Voltage Swing V , V mV OL OH I = 10A 2 SINK V = V - V OL OUT SS, (V - V ) 20mV IN- IN+ I = 4mA 180 400 SINK Output Short-Circuit Current I 50 mA SC V = 10mV 8 R = 10k , OD L Propagation Delay t , t - s pd+ pd C = 15pF (Note 4) L V = 100mV 3 OD Rise and Fall Time t , t R = 10k , C = 15pF (Note 5) 20 ns R F L L Power-On Time R = 10k , C = 15pF 150 ns L L Maximum Capacitive Load C No sustained oscillations 150 pF L Note 1: All devices are production tested at 25C. All temperature limits are guaranteed by design. Note 2: Comparator Input Offset is defined as the center of the hysteresis zone. Note 3: Hysteresis is defined as the difference of the trip points required to change comparator output states. Note 4: V is the overdrive voltage beyond the offset and hysteresis-determined trip points. OD Note 5: Rise and fall times are measured between 10% and 90% at OUT. 2 MAX9021/MAX9022/MAX9024