19-1767; Rev 0; 10/00 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators Features ♦ Low-Cost Solution Available in Space-Saving SC70 Packages (MAX9030/MAX9031) ♦ +2.5 to +5.5V Single-Supply Voltage Range ♦ Comparator Output Swings Rail-to-Rail® ♦ Internal 4mV Comparator Hysteresis ♦ 188ns Propagation Delay ♦ Low 35µA Supply Current ♦ No Phase Reversal for Overdriven Inputs ♦ Space-Saving Packages 5-Pin SC70 (MAX9031) 6-Pin SC70 (MAX9030) 8-Pin SOT23 (MAX9032) 14-Pin TSSOP (MAX9034) Ordering Information PART ________________________Applications Battery-Powered Portable Systems Mobile Communications Sensor Signal Detection Photodiode Preamps Digital Line Receivers Keyless Entry Systems Threshold Detectors/ Discriminators TEMP. RANGE PIN-PACKAGE MA X9 03 0AX T- T -40°C to +125°C 6 SC70 MAX9030AUT-T -40°C to +125°C 6 SOT23 MAX9031AXK-T -40°C to +125°C 5 SC70 MAX9031AUK-T -40°C to +125°C 5 SOT23 MAX9 03 2AKA-T -40°C to +125°C 8 SOT23 MAX9032AUA* -40°C to +125°C 8 µMAX MAX9032ASA -40°C to +125°C 8 SO MA X9 03 4AUD -40°C to +125°C 14 TSSOP MAX9034AS D -40°C to +125°C 14 SO *Future product–contact factory for availability. Typical Application Circuit appears at end of data sheet. Pin Configurations TOP VIEW IN+ 1 VSS 2 6 MAX9030 5 VDD SHDN IN+ 1 VSS 2 5 VDD OUTA 1 8 INA- 2 MAX9031 7 VDD OUTB MAX9032 INA+ 3 6 INA- 2 13 IND- INA+ 3 12 IND+ INBVDD 4 IN- 3 4 SC70-6/SOT23-6 OUT IN- 3 4 OUT SC70-5/SOT23-5 VSS 4 5 SOT23-8/µMAX-8/ SO-8 INB+ 14 OUTD OUTA 1 INB+ 5 MAX9034 11 VSS 10 INC+ INB- 6 9 INC- OUTB 7 8 OUTC TSSOP-14/SO-14 Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. ________________________________________________________________ Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX9030/MAX9031/MAX9032/MAX9034 General Description The MAX9030/MAX9031/MAX9032/MAX9034 single/ dual/quad comparators are optimized for single-supply applications from +2.5V to +5.5V but can also be operated from dual supplies. These comparators have a 188ns propagation delay and consume 35µA of supply current per comparator over the -40°C to +125°C operating temperature range. The combination of lowpower, single-supply operation down to +2.5V, and ultra-small footprint makes these devices ideal for portable applications. The MAX9030 is a low-cost single comparator with shutdown. The MAX9031, MAX9032, and MAX9034 are low-cost single, dual, and quad comparators without shutdown, respectively. The comparators’ 4mV of builtin hysteresis provides noise immunity and prevents oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator output stage substantially reduces switching current during output transitions, virtually eliminating power-supply glitches. The MAX9030 single comparator with shutdown is available in the space-saving 6-pin SC70 and SOT23 packages. The MAX9031 single comparator is available in tiny 5-pin SC70 and SOT23 packages. The MAX9032 dual comparator is available in 8-pin SOT23 and µMAX packages, and the MAX9034 quad comparator is available in a 14-pin TSSOP package. MAX9030/MAX9031/MAX9032/MAX9034 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators ABSOLUTE MAXIMUM RATINGS 8-Pin SOT23 (derate 9.1mW/°C above +70°C).............727mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) ..............362mW 8-Pin SO (derate 5.88mW/°C above +70°C).................471mW 14-Pin TSSOP (derate 9.1mW/°C above +70°C) ..........727mW 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW Operating Temperature Range Automotive Application...................................-40°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) ................................ +300°C Supply Voltage (VDD to VSS) ....................................-0.3V to +6V Voltage Inputs (IN+, IN- to VSS). ................-0.3V to (VDD + 0.3V) Differential Input Voltage (IN+ to IN-) .................................+6.6V Output Short-Circuit Duration ...............................................2s to Either VDD or VSS Current into Any Pin ............................................................20mA Continuous Power Dissipation (TA = +70°C) ............................... 5-Pin SC70 (derate 3.1mW/°C above +70°C) ...............247mW 5-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW 6-Pin SC70 (derate 3.1mW/°C above +70°C) ...............245mW 6-Pin SOT23 (derate 8.7mW/°C above +70°C).............696mW 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 (VDD = +5V, VSS = 0, VCM = 0, V SHDN = +5V (Note 1), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL Operating Voltage Range VDD Supply Current per Comparator IDD CONDITIONS Guaranteed by PSRR test MIN TYP 2.5 MAX UNITS 5.5 V µA 35 55 Supply Current in Shutdown V S HDN = 0 (Note 1) 0.05 1 µA Shutdown Input Bias Current V S HDN = 0 to VDD (Note 1) 0.1 2.5 µA Shutdown Logic High (Note 1) Shutdown Logic Low Input Offset Voltage Input Offset Voltage Temperature Coefficient V (Note 1) VOS ±1 (Note 3) (Note 4) IOS Common-Mode Voltage Range VCM V ±5 mV 8 ±2 Guaranteed by CMRR test µV/°C 4 IBIAS Input Offset Current 0.3 × VDD ±1 TCVOS Hysteresis Input Bias Current 0.7 × VDD VSS mV 80 nA ±60 nA VDD - 1.1 V Common-Mode Rejection Ratio CMRR VSS ≤ VCM ≤ (VDD - 1.1V), VDD = +5.5V 72 100 dB Power-Supply Rejection Ratio PSRR VDD = +2.5V to +5.5V 72 100 dB 2 _______________________________________________________________________________________ Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators (VDD = +5V, VSS = 0, VCM = 0, V SHDN = +5V (Note 1), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL Output Voltage-Swing VOL, VOH Output Short-Circuit Current CONDITIONS VOH = VDD - VOUT, (VIN+ - VIN-) ≥ 20mV VOL = VOUT - VSS, (VIN- - VIN+) ≥ 20mV MIN TYP ISOURCE = 10µA 2 ISOURCE = 4mA 165 ISINK = 10µA 2 ISINK = 4mA 165 ISC V SHDN ≤ (0.3 × VDD), VOUT = 0 to VDD (Note 1) tPD+, tPD - Rise/Fall-Time UNITS 400 mV 400 45 Shutdown Mode Output Leakage Propagation Delay MAX tR , t F RL = 10kΩ, CL = 15pF (Note 5) ±0.01 VOD = 10mV 228 VOD = 100mV 188 mA ±3.5 µA ns VDD = +5V, RL = 10kΩ, CL = 15pF (Note 6) 20 ns Shutdown Delay Time ON/OFF (Note 1) 40 ns Shutdown Delay Time OFF/ON (Note 1) 400 ns Power-On Time RL = 10kΩ, CL = 15pF 200 ns No sustained oscillations 150 pF Maximum Capacitive Load Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: CL MAX9030 only. All devices are production tested at +25°C. All temperature limits are guaranteed by design. Comparator Input Offset is defined as the center of the hysteresis zone. Hysteresis is defined as the difference of the trip points required to change comparator output states. VOD is the overdrive that is beyond the offset and hysteresis-determined trip points. Rise and fall times are measured between 10% and 90% at OUT. Typical Operating Characteristics (VDD = +5V, VSS = 0, VCM = 0, RL = 10kΩ, CL = 15pF, VOD= 100mV, TA = +25°C, unless otherwise noted.) SUPPLY CURRENT vs. TEMPERATURE 36 34 32 30 37 36 35 34 1000 MAX9030/1/2/4 toc03 MAX9030/1/2/4 toc02 SUPPLY CURRENT (µA) 38 38 SUPPLY CURRENT (µA) MAX9030/1/2/4 toc01 40 SUPPLY CURRENT vs. OUTPUT TRANSITION FREQUENCY SUPPLY CURRENT (µA) SUPPLY CURRENT vs. SUPPLY VOLTAGE 100 33 28 32 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) 5.0 5.5 -50 -25 0 25 50 75 TEMPERATURE (°C) 100 125 10 10 100 1k 10k 100k 1M OUTPUT TRANSITION FREQUENCY (Hz) _______________________________________________________________________________________ 3 MAX9030/MAX9031/MAX9032/MAX9034 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0, VCM = 0, RL = 10kΩ, CL = 15pF, VOD = 100mV, TA = +25°C, unless otherwise noted.) 0.2 0.1 0 -0.1 -0.2 -0.3 120 100 80 60 40 160 -0.5 -25 0 25 50 75 100 0 125 120 100 80 60 40 0 0 -50 140 20 20 -0.4 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 TEMPERATURE (°C) SOURCE CURRENT (mA) SINK CURRENT (mA) OUTPUT SHORT-CIRCUIT (SINK) CURRENT vs. TEMPERATURE OUTPUT SHORT-CIRCUIT (SOURCE) CURRENT vs. TEMPERATURE PROPAGATION DELAY vs. CAPACITIVE LOAD (VDD = 2.7V) 45 40 35 30 50 45 40 280 -25 0 25 50 75 100 260 240 220 200 180 160 140 35 120 100 30 -50 MAX9030/1/2/4 toc09 55 300 PROPAGATION DELAY (ns) 50 MAX9030/1/2/4 toc08 55 60 SHORT-CIRCUIT SOURCE CURRENT (mA) MAX9030/1/2/4 toc07 60 125 -50 -25 0 25 50 75 100 0 125 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) CAPACITIVE LOAD (pF) PROPAGATION DELAY vs. CAPACITIVE LOAD (VDD = +5V) PROPAGATION DELAY vs. TEMPERATURE PROPAGATION DELAY vs. INPUT OVERDRIVE VOLTAGE 240 tPD- 220 200 tPD+ 180 160 280 260 240 tPD- 220 200 tPD+ 180 160 300 275 250 200 150 125 140 100 120 120 75 100 100 25 50 75 100 CAPACITIVE LOAD (pF) 125 150 tPD+ 175 140 0 tPD- 225 150 MAX9030/1/2/4 toc12 260 300 PROPAGATION DELAY (ns) 280 PROPAGATION DELAY (ns) MAX9030/1/2/4 toc10 300 MAX9030/1/2/4 toc11 SHORT-CIRCUIT SINK CURRENT (mA) 140 MAX9030/1/2/4 toc06 160 180 OUTPUT LOW VOLTAGE (mV) 0.3 MAX9030/1/2/4 toc05 MAX9030/1/2/4 toc04 INPUT OFFSET VOLTAGE (mV) 0.4 180 VDD - VOUT OUTPUT HIGH VOLTAGE (mV) 0.5 4 OUTPUT LOW VOLTAGE vs. SINK CURRENT OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT INPUT OFFSET VOLTAGE vs. TEMPERATURE PROPAGATION DELAY (ns) MAX9030/MAX9031/MAX9032/MAX9034 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators 50 -50 -25 0 25 50 75 TEMPERATURE (°C) 100 125 0 20 40 60 80 100 120 INPUT OVERDRIVE VOLTAGE (mV) _______________________________________________________________________________________ 140 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators IN+ - IN200mV/div MAX9030/1/2/4 toc14 OUTPUT SWITCHING CURRENT, RISING MAX9030/1/2/4 toc13 PROPAGATION DELAY IN+ - IN5V/div OUT 5V/div SWITCHING CURRENT 200µA/div OUT 2V/div OUTPUT SWITCHING CURRENT, FALLING SINUSOID 1MHz RESPONSE AT 1.25MHz VOD = 100mV IN+ - IN5V/div MAX9030/1/2/4 toc16 TIME (2µs/div) MAX9030/1/2/4 toc15 TIME (200ns/div) IN+ - IN100mV/div OUT 5V/div OUT 2V/div SWITCHING CURRENT 50µA/div TIME (100ns/div) SINUSOID 1MHz RESPONSE AT 1.25MHz VOD = 10mV POWER-UP DELAY IN+ - IN10mV/div MAX9030/1/2/4 toc18 MAX9030/1/2/4 toc17 TIME (1µs/div) VDD 2.5V/div OUT 2V/div OUT TIME (100ns/div) TIME (200ns/div) _______________________________________________________________________________________ 5 MAX9030/MAX9031/MAX9032/MAX9034 Typical Operating Characteristics (continued) (VDD = +5V, VSS = 0, VCM = 0, RL = 10kΩ, CL = 15pF, VOD = 100mV, TA = +25°C, unless otherwise noted.) MAX9030/MAX9031/MAX9032/MAX9034 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators Pin Description PIN NAME MAX9031 MAX9032 MAX9034 1 1 — — IN+ Comparator Noninverting Input 2 2 4 11 VSS Negative Supply Voltage. Bypass with a 0.1µF capacitor. 3 3 — — IN- Comparator Inverting Input 4 4 — — OUT 5 — — — SHDN 6 5 8 4 VDD — — 1 1 OUTA — — 2 2 INA- Comparator A Inverting Input — — 3 3 INA+ Comparator A Noninverting Input — — 5 5 INB+ Comparator B Noninverting Input — — 6 6 INB- Comparator B Inverting Input — — 7 7 OUTB Comparator B Output — — — 8 OUTC Comparator C Output — — — 9 INC- Comparator C Inverting Input — — — 10 INC+ Comparator C Noninverting Input — — — 12 IND+ Comparator D Noninverting Input — — — 13 IND- Comparator D Inverting Input — — — 14 OUTD Detailed Description The MAX9030/MAX9031/MAX9032/MAX9034 are single/dual/quad low-cost comparators. They have an operating supply voltage from +2.5V to +5.5V when operating from a single supply and from ±1.25V to ±2.75V when operating from dual power supplies, and consume only 35µA. Their common-mode input voltage range extends from the negative supply to within 1.1V of the positive supply. Internal hysteresis ensures clean output switching, even with slow-moving input signals. Shutdown Mode The MAX9030 comparator comes with a power-saving shutdown mode. When in shutdown, the supply current drops from a typical 35µA to 0.05µA, and the outputs become high impedance. SHDN has a high input impedance and typically draws 0.1µA when connected to VSS or VDD. A maximum logic low voltage of 0.3V ✕ VDD 6 FUNCTION MAX9030 Comparator Output Shutdown Positive Supply Voltage. Bypass with a 0.1µF capacitor. Comparator A Output Comparator D Output applied to SHDN places the device in the shutdown mode. A minimum logic high voltage of 0.7V ✕ V DD applied to SHDN will enable normal operation. To disable shutdown, connect SHDN to VDD. Applications Information Adding Hysteresis Hysteresis extends the comparator’s noise margin by increasing the upper threshold and decreasing the lower threshold. A voltage-divider from the output of the comparator sets the trip voltage. Therefore, the trip voltage is related to the output voltage. These comparators have 4mV internal hysteresis. Additional hysteresis can be generated with two resistors using positive feedback (Figure 1). Use the following procedure to calculate resistor values: _______________________________________________________________________________________ Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators R2 VREF VDD VDD VDD VDD IN+ IN+ VIN OUT OUT 10kΩ IN- IN- VIN MAX9031 MAX9031 0.1µF VSS VSS Figure 1. Additional Hysteresis 1) Find the trip points of the comparator using these formulas: VTH = VREF +[((VDD - VREF)R2) / (R1 + R2) VTL = VREF(1 - (R2 / (R1 + R2))] where VTH is the threshold voltage at which the comparator switches its output from high to low as VIN rises above the trip point. VTL is the threshold voltage at which the comparator switches its output from low to high as VIN drops below the trip point. 2) The hysteresis band will be: VHYS = VTH - VTL = VDD(R2 / (R1 + R2)) 3) In this example, let VDD = +5V and VREF = +2.5V. VTH = 2.5V + 2.5(R2 / (R1 + R2))V Figure 2. Time Averaging of the Input Signal for Data Recovery Board Layout and Bypassing Use 100nF bypass as a starting point. Minimize signal trace lengths to reduce stray capacitance. Minimize the capacitive coupling between IN- and OUT. For slowmoving input signals (rise-time > 1ms), use a 1nF capacitor between IN+ and IN-. Biasing for Data Recovery Digital data is often embedded into a bandwidth and amplitude-limited analog path. Recovering the data can be difficult. Figure 2 compares the input signal to a time-averaged version of itself. This self-biases the threshold to the average input voltage for optimal noise margin. Even severe phase distortion is eliminated from the digital output signal. Be sure to choose R1 and C1 so that: ƒCAR >> 1 / (2πR1C1) and VTL = 2.5[1 - (R2 / (R1 + R2))] where ƒCAR is the fundamental carrier frequency of the digital data stream. 4) Select R2. In this example, we will choose 1kΩ. 5) Select VHYS. In this example, we will choose 50mV. 6) Solve for R1. VHYS = VDD(R2 / (R1 + R2)) 0.050V = 5(1000Ω/(R1 + 1000Ω)) V where R1 ≈ 100kΩ, VTH = 2.525V, and VTL = 2.475V. The above-described design procedure assumes railto-rail output swing. If the output is significantly loaded, the results should be corrected. _______________________________________________________________________________________ 7 MAX9030/MAX9031/MAX9032/MAX9034 R1 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators MAX9030/MAX9031/MAX9032/MAX9034 Typical Application Circuit TRANSISTOR COUNT/MAX9030/MAX9031: 123 TRANSISTOR COUNT/MAX9032: 184 TRANSISTOR COUNT/MAX9034: 368 VDD 0.1µF VIN R1 Chip Information VDD IN+ VIN OUT VREF INRL R2 8 MAX9031 _______________________________________________________________________________________ Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators SC70, 5L.EPS SC70, 6L.EPS _______________________________________________________________________________________ 9 MAX9030/MAX9031/MAX9032/MAX9034 Package Information Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators SOT23, 8L.EPS MAX9030/MAX9031/MAX9032/MAX9034 Package Information (continued) 10 ______________________________________________________________________________________ Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators TSSOP,NO PADS.EPS Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________11 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX9030/MAX9031/MAX9032/MAX9034 Package Information (continued)