ADCMP670-1YUJZ-RL7

Dual Low Power 1.5% Comparator With 400 mV Reference ADCMP670 FEATURES FUNCTIONAL BLOCK DIAGRAM VDD 400 mV ± 1.5% threshold Supply range: 1.7 V to 5.5 V Low quiescent current: 6.5 μA typical Input range includes ground Internal hysteresis: 8.9 mV typical Low input bias current: ±10 nA maximum Open-drain outputs Supports wire-AND connections Input polarities: one inverting and one noninverting Low profile (1 mm) TSOT package Drop-in replacement for the LT6700-1 ADCMP670-1 +INA OUTA 400mV OUTB 06493-001 –INB GND Figure 1. APPLICATIONS Li-Ion monitoring Portable applications Hand-held instruments Window comparators LED/relay driving Optoisolator driving Control systems GENERAL DESCRIPTION 1A 1B 402 2A 2B 400 RISING INPUT 398 396 394 FALLING INPUT 392 390 388 TWO TYPICAL PARTS COMP A AND COMP B VDD = 5V 386 –40 –20 0 20 40 60 80 100 TEMPERATURE (°C) 120 06493-002 The ADCMP670 is currently available in one model, the ADCMP670-1. This model has one inverting input and one noninverting input, making it suitable for use as a window comparator. The device is suitable for portable, commercial, industrial, and automotive applications. 404 THRESHOLD VOLTAGE (mV) The ADCMP670 consists of two low power, high accuracy, comparator and reference circuits in a 6-lead TSOT package. The internal 400 mV reference provides the ability to monitor low voltage supplies. The device operates on a supply voltage from 1.7 V to 5.5 V and draws only 6.5 μA typical, making it suitable for low power system monitoring and portable applications. Hysteresis is included in the comparators. The comparator outputs are open-drain and the output can be pulled up to any voltage up to 5.5 V. The output stage is guaranteed to sink greater than 5 mA over temperature. Figure 2. Comparator Thresholds vs. Temperature Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2007-2009 Analog Devices, Inc. All rights reserved. ADCMP670 TABLE OF CONTENTS Features .............................................................................................. 1  Typical Performance Characteristics ..............................................8  Applications ....................................................................................... 1  Application Information ................................................................ 13  Functional Block Diagram .............................................................. 1  Comparators and Internal Reference ...................................... 13  General Description ......................................................................... 1  Power Supply............................................................................... 13  Revision History ............................................................................... 2  Inputs ........................................................................................... 13  Specifications..................................................................................... 3  Outputs ........................................................................................ 13  Absolute Maximum Ratings............................................................ 6  Adding Hysteresis....................................................................... 13  Thermal Resistance ...................................................................... 6  Outline Dimensions ....................................................................... 14  ESD Caution .................................................................................. 6  Ordering Guide .......................................................................... 14  Pin Configuration and Function Descriptions ............................. 7  REVISION HISTORY 7/09—Rev. 0 to Rev. A Changes to Figure 12 ........................................................................ 9 2/07—Revision 0: Initial Version Rev. A | Page 2 of 16 ADCMP670 SPECIFICATIONS VDD = 1.7 V to 5.5 V, TA = 25°C, unless otherwise noted. Table 1. Parameter THRESHOLDS 1 Rising Input Threshold Voltage Falling Input Threshold Voltage Hysteresis = VTH(R) – VTH(F) INPUT CHARACTERISTICS Input Bias Current OPEN-DRAN OUTPUTS Output Low Voltage 2 Output Leakage Current 3 DYNAMIC PERFORMANCE2, 4 High-to-Low Propagation Delay Low-to-High Propagation Delay Output Rise Time Output Fall Time POWER SUPPLY Supply Current 5 Min Typ Max Unit Test Conditions/Comments 394 395 386 387 7 400 400 391.1 391.1 8.9 406 405 401 400 11 mV mV mV mV mV VDD = 1.7 V VDD = 5.5 V VDD = 1.7 V VDD = 5.5 V 0.01 4 10 10 nA nA VDD = 1.7 V, VIN = VDD VDD = 1.7 V, VIN = 0.1 V 140 130 0.01 0.01 200 200 0.8 0.8 mV mV μA μA VDD = 1.7 V, IOUT = 3 mA VDD = 5.5 V, IOUT = 5 mA VDD =1.7 V, VOUT = VDD VDD =1.7 V, VOUT = 5.5 V μs μs μs μs VDD = 5.5 V, VOL = 400 mV VDD = 5.5 V, VOH = 0.9 × VDD VDD = 5.5 V, VO = (0.1 to 0.9) × VDD VDD = 5.5 V, VO = (0.1 to 0.9) × VDD μA μA VDD = 1.7 V VDD = 5.5 V 10 8 0.5 0.07 5.7 6.5 10 11 1 RL = 100 kΩ, VO = 2 V swing. 10 mV input overdrive. 3 VIN = 40 mV overdrive. 4 RL = 10 kΩ. 5 No load current. 2 Rev. A | Page 3 of 16 ADCMP670 VDD = 1.7 V to 5.5 V, 0°C ≤ TA ≤ 70°C, unless otherwise noted. Table 2. Parameter THRESHOLDS 1 Rising Input Threshold Voltage Falling Input Threshold Voltage Hysteresis = VTH(R) – VTH(F) INPUT CHARACTERISTICS Input Bias Current Min Typ 391 392.5 383.5 384.5 6.5 OPEN-DRAIN OUTPUTS Output Low Voltage 2 Output Leakage Current 3 POWER SUPPLY Supply Current 4 Max Unit Test Conditions/Comments 409 407.5 403.5 402.5 12.5 mV mV mV mV mV VDD = 1.7 V VDD = 5.5 V VDD = 1.7 V VDD = 5.5 V 15 15 nA nA VDD = 1.7 V, VIN = VDD VDD = 1.7 V, VIN = 0.1 V 250 250 1 1 mV mV μA μA VDD = 1.7 V, IOUT = 3 mA VDD = 5.5 V, IOUT = 5 mA VDD =1.7 V, VOUT = VDD VDD =1.7 V, VOUT = 5.5 V 13 14 μA μA VDD = 1.7 V VDD = 5.5 V Max Unit Test Conditions/Comments 410 408 404.5 403.5 13.0 mV mV mV mV mV VDD = 1.7 V VDD = 5.5 V VDD = 1.7 V VDD = 5.5 V 15 15 nA nA VDD = 1.7 V, VIN = VDD VDD = 1.7 V, VIN = 0.1 V 250 250 1 1 mV mV μA μA VDD = 1.7 V, IOUT = 3 mA VDD = 5.5 V, IOUT = 5 mA VDD =1.7 V, VOUT = VDD VDD =1.7 V, VOUT = 5.5 V 14 15 μA μA VDD = 1.7 V VDD = 5.5 V 1 RL = 100 kΩ, VO = 2 V swing. 10 mV input overdrive. VIN = 40 mV overdrive. 4 No load. 2 3 VDD = 1.7 V to 5.5 V, −40°C ≤ TA ≤ 85°C, unless otherwise noted. Table 3. Parameter THRESHOLDS 1 Rising Input Threshold Voltage Falling Input Threshold Voltage Hysteresis = VTH(R) – VTH(F) INPUT CHARACTERISTICS Input Bias Current OPEN-DRAIN OUTPUTS Output Low Voltage 2 Output Leakage Current 3 POWER SUPPLY Supply Current 4 Min 390 392 382.5 383.5 5.5 Typ 1 RL = 100 kΩ, VO = 2 V swing. 10 mV input overdrive. 3 VIN = 40 mV overdrive. 4 No load. 2 Rev. A | Page 4 of 16 ADCMP670 VDD = 1.7 V to 5.5 V, −40°C ≤ TA ≤ 125°C, unless otherwise noted. Table 4. Parameter THRESHOLDS 1 Rising Input Threshold Voltage Falling Input Threshold Voltage Hysteresis = VTH(R) – VTH(F) INPUT CHARACTERISTICS Input Bias Current OPEN-DRAIN OUTPUTS Output Low Voltage 2 Output Leakage Current 3 POWER SUPPLY Supply Current 4 Min 390 392 381.5 381.05 2 Typ Max Unit Test Conditions/Comments 411 410 405.5 404.5 13.5 mV mV mV mV mV VDD = 1.7 V VDD = 5.5 V VDD = 1.7 V VDD = 5.5 V 45 45 nA nA VDD = 1.7 V, VIN = VDD VDD = 1.7 V, VIN = 0.1 V 250 250 1 1 mV mV μA μA VDD = 1.7 V, IOUT = 3 mA VDD = 5.5 V, IOUT = 5 mA VDD = 1.7 V, VOUT = VDD VDD = 1.7 V, VOUT = 5.5 V 16 17 μA μA VDD = 1.7 V VDD= 5.5 V 1 RL = 100 kΩ, VO = 2 V swing. 10 mV input overdrive. VIN = 40 mV overdrive. 4 No load. 2 3 Rev. A | Page 5 of 16 ADCMP670 ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 5. Parameter VDD +INA, −INB OUTA, OUTB Output Short Circuit Duration1 Input Current Operating Temperature Range Storage Temperature Range Lead Temperature Soldering (10 sec) Vapor Phase (60 sec) Infrared (15 sec) 1 θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. Range −0.3 V to +6 V −0.3 V to +6 V −0.3 V to +6 V Indefinite −10 mA −40°C to +125°C −65°C to +150°C Table 6. Thermal Resistance Package Type 6-Lead TSOT ESD CAUTION 300°C 215°C 220°C When the output is shorted indefinitely, the use of a heat sink may be required to keep the junction temperature within the absolute maximum ratings. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Rev. A | Page 6 of 16 θJA 200 Unit °C/W ADCMP670 OUTA 1 GND 2 +INA 3 ADCMP670-1 TOP VIEW (Not to Scale) 6 OUTB 5 VDD 4 –INB 06493-003 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 3. Pin Configuration Table 7. Pin Function Descriptions Pin No. 1 2 3 Mnemonic OUTA GND +INA 4 −INB 5 6 VDD OUTB Description Open-Drain Output for Comparator A. Ground. Monitors analog input voltage on Comparator A. Connected to noninverting input. The other input of Comparator A is connected to a 400 mV reference. Monitors analog input voltage on Comparator B. Connected to inverting input. The other input of Comparator B is connected to a 400 mV reference. Power Supply Pin. Open-Drain Output for Comparator B. Rev. A | Page 7 of 16 ADCMP670 TYPICAL PERFORMANCE CHARACTERISTICS 50 VDD = 5V TA = 25°C VDD = 5V TA = 25°C 40 PERCENT OF UNITS (%) 40 30 20 FALLING INPUT THRESHOLD VOLTAGE (mV) Figure 4. Distribution of Rising Input Threshold Voltage Figure 7. Distribution of Falling Input Threshold Voltage 402 VDD = 5V TA = 25°C RISING INPUT THRESHOLD VOLTAGE (mV) PERCENT OF UNITS (%) 30 25 20 15 10 5 6.0 6.4 6.8 7.2 7.6 8.0 8.4 8.8 9.2 9.6 10.0 10.4 10.8 HYSTERESIS (mV) RISING INPUT THRESHOLD VOLTAGE (mV) 398 –20 0 20 40 60 80 400 399 401 FOUR TYPICAL PARTS VDD = 5V 400 396 –40 = 1.8V = 2.5V = 3.3V = 5.0V –20 0 20 40 60 80 100 120 Figure 8. Rising Input Threshold Voltage vs. Temperature 100 120 TEMPERATURE (°C) 06493-006 RISING INPUT THRESHOLD VOLTAGE (mV) 402 1 2 3 4 VDD VDD VDD VDD TEMPERATURE (°C) Figure 5. Distribution of Hysteresis 404 401 398 –40 06493-005 0 388 389 390 391 392 393 394 395 396 397 398 399 400 06493-007 0 06493-004 394 395 396 397 398 399 400 401 402 403 404 405 406 RISING INPUT THRESHOLD VOLTAGE (mV) 35 20 10 10 0 30 06493-008 PERCENT OF UNITS (%) 50 Figure 6. Rising Input Threshold Voltage vs. Temperature TA = –40°C 400 TA = +25°C 399 TA = +85°C 398 397 TA = +125°C 396 395 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 5.7 SUPPLY VOLTAGE (V) Figure 9. Rising Input Threshold Voltage vs. Supply Voltage Rev. A | Page 8 of 16 06493-009 60 ADCMP670 12.0 11.5 11.0 10.5 1A 1B 2A 2B 11.0 10.5 10.0 9.5 9.0 HYSTERESIS (mV) FOUR TYPICAL PARTS VDD = 5V 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 VDD VDD VDD VDD 10.0 9.5 9.0 = 1.8V = 2.5V = 3.3V = 5.0V 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 4.0 –40 06493-010 4.0 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) Figure 10. Hysteresis vs. Temperature 06493-013 HYSTERESIS (mV) 12.0 11.5 Figure 13. Hysteresis vs. Temperature 12 1 TA = +125°C 11 0 THRESHOLD SHIFT (mV) TA = +25°C 9 TA = +85°C 8 7 TA = –40°C 6 TA = –40°C TA = +25°C TA = +85°C TA = +125°C –1 –2 –3 2.2 2.7 3.2 3.7 4.2 4.7 5.2 5.7 SUPPLY VOLTAGE (V) –5 1.5 06493-011 4 1.7 1.9 2.0 2.1 2.2 2.3 2.4 2.5 50 NO LOAD CURRENT 8 SUPPLY CURRENT (µA) 40 TA = +125°C TA = +85°C 7 TA = +25°C 6 TA = –40°C 2.2 2.7 30 20 TA = +25°C 10 5 3.2 3.7 4.2 4.7 5.2 SUPPLY VOLTAGE (V) 06493-012 SUPPLY CURRENT (µA) 1.8 Figure 14. Minimum Supply Voltage 9 4 1.7 1.7 SUPPLY VOLTAGE (V) Figure 11. Hysteresis vs. Supply Voltage 10 1.6 06493-014 –4 5 0 TA = +85°C TA = +125°C TA = –40°C 0 0.5 1.0 SUPPLY VOLTAGE (V) Figure 15. Startup Supply Current Figure 12. Quiescent Supply Current vs. Supply Voltage Rev. A | Page 9 of 16 1.5 06493-015 HYSTERESIS (mV) 10 ADCMP670 1000 100 10 1 0.001 0.01 0.1 1 10 100 OUTPUT SINK CURRENT (mA) TA = 25°C 10 1 0.001 0.01 0.1 10k = 5.0V = 3.3V = 2.5V = 1.7V 1k 100 10 100 OUTPUT SINK CURRENT (mA) TA = –40°C 0.1 –0.3 06493-018 1 –0.2 Figure 20. Below Ground Input Bias Current 3 10 TA = +125°C TA = +85°C TA = +25°C TA = –40°C –1 –3 –5 0 0.2 0.4 0.6 0.8 INPUT VOLTAGE (V) 1.0 06493-020 CURRENT IS POSITIVE GOING INTO THE DEVICE. VDD = 5V 0V < VIB < 1V Figure 18. Low Level Input Bias Current TA = +125°C 1 TA = +85°C TA = +25°C 0.1 0.01 TA = –40°C CURRENT IS GOING INTO THE DEVICE VDD = 5V VIB > 1V 1 2 3 4 INPUT VOLTAGE (V) Figure 21. High Level Input Bias Current Rev. A | Page 10 of 16 5 06493-021 INPUT BIAS CURRENT (nA) 1 INPUT BIAS CURRENT (nA) 0 –0.1 INPUT VOLTAGE (V) Figure 17. Supply Current vs. Output Sink Current –7 TA = +85°C TA = +25°C 10 1 0.1 100 CURRENT IS GOING OUT OF THE DEVICE. VDD = 5V –0.3V < VIB < 0V TA = +125°C 10 0.01 10 Figure 19. Supply Current vs. Output Sink Current 100 1 0.001 1 OUTPUT SINK CURRENT (mA) INPUT BIAS CURRENT (nA) SUPPLY CURRENT (µA) VDD VDD VDD VDD TA = 85°C = 5.0V = 3.3V = 2.5V = 1.7V 100 Figure 16. Supply Current vs. Output Sink Current 1000 VDD VDD VDD VDD 06493-017 SUPPLY CURRENT (µA) = 5.0V = 3.3V = 2.5V = 1.7V 06493-019 VDD VDD VDD VDD TA = –40°C 06493-016 SUPPLY CURRENT (µA) 1000 ADCMP670 1000 100 10 1 0.001 0.01 0.1 1 10 OUTPUT SINK CURRENT (mA) 10 0.1 1 10 Figure 25. Output Saturation Voltage vs. Output Sink Current 80 TA = 85°C VDD = 5.0V VDD = 3.3V VDD = 2.5V VDD = 1.8V VDD = 5V SHORT-CIRCUIT CURRENT (mA) 10 TA = –40°C TA = +25°C 70 100 60 50 TA = +85°C TA = +125°C 40 30 20 0.1 1 10 OUTPUT SINK CURRENT (mA) 0 0 Figure 23. Output Saturation Voltage vs. Output Sink Current 70 OUTPUT LEAKAGE CURRENT (nA) 60 50 VDD = 3.3V 30 VDD = 2.5V 20 VDD = 1.8V 0 2 4 OUTPUT VOLTAGE (V) 06493-026 10 0 VDD = 5V VDD = 5.0V 40 4 Figure 26. Output Short-Circuit Current 10 TA = 25°C 2 OUTPUT VOLTAGE (V) Figure 24. Output Short-Circuit Current TA = +125°C 1 TA = +85°C TA = +25°C 0.1 TA = –40°C 0.01 0.001 0 1 2 3 OUTPUT VOLTAGE (V) Figure 27. Output Leakage Current Rev. A | Page 11 of 16 4 5 06493-027 0.01 06493-025 10 1 0.001 SHORT-CIRCUIT CURRENT (mA) 0.01 OUTPUT SINK CURRENT (mA) 06493-024 OUTPUT SATURATION VOLTAGE (mV) 100 1 0.001 Figure 22. Output Saturation Voltage vs. Output Sink Current 1000 TA = –40°C VDD = 5.0V VDD = 3.3V VDD = 2.5V VDD = 1.8V 06493-023 OUTPUT SATURATION VOLTAGE (mV) TA = 25°C VDD = 5.0V VDD = 3.3V VDD = 2.5V VDD = 1.8V 06493-022 OUTPUT SATURATION VOLTAGE (mV) 1000 ADCMP670 60 RISE AND FALL TIMES (µs) 50 40 30 20 VDD = 5V CL = 20pF TA = 25°C 10 RISE 1 0.1 10 0 20 40 60 80 100 INPUT OVERDRIVE (mV) 06493-028 0 FALL Figure 28. Propagation Delay vs. Input Overdrive 2 INV (OUTB) 3 VIN (+INA, –INB) M20.0µs CH1 7mV 06493-029 1 CH2 5.00V 1 10 100 1000 OUTPUT PULL-UP RESISTOR (kΩ) Figure 30. Rise and Fall Times vs. Output Pull-Up Resistor NON INV (OUTA) CH1 50.0mV CH3 5.00V 0.01 0.1 Figure 29. Noninverting and Inverting Comparators Propagation Delay Rev. A | Page 12 of 16 06493-030 PROPAGATION DELAY (µs) 100 LH NONINV LH INV HL NONINV HL INV TA = 25°C ADCMP670 APPLICATION INFORMATION The ADCMP670 is a dual low power comparator with a built-in 400 mV reference that operates from 1.7 V to 5.5 V. The comparator is 1.5% accurate with a built-in hysteresis of 8.9 mV. The outputs are open-drain, capable of sinking 40 mA. COMPARATORS AND INTERNAL REFERENCE Each comparator has one input available externally. Comparator A has a noninverting input and Comparator B has an inverting input available. The other comparator inputs are connected internally to the 400 mV reference. The rising input threshold voltage of the comparators is designed to be equal to that of the reference. POWER SUPPLY OUTPUTS The comparator outputs are open-drain and are also limited to the maximum specified VDD voltage range, regardless of the VDD voltage. These outputs are capable of sinking up to 40 mA. Outputs can be tied together to provide a window comparator with a single output. ADDING HYSTERESIS To prevent oscillations at the output caused by noise or slowly moving signals passing the switching threshold, each comparator has built-in hysteresis of approximately 8.9 mV. Positive feedback can be used to increase hysteresis to the noninverting comparator. The ADCMP670 is designed to operate from 1.7 V to 5.5 V. A 0.1 μF decoupling capacitor is recommended between VDD and GND. INPUTS The comparator inputs are limited to the maximum VDD voltage range. The voltage on these inputs can be above VDD but never above the maximum allowed VDD voltage. When adding a resistor string to the input, care must be taken when choosing resistor values. This is due to the fact that the input bias current will be in parallel with the bottom resistor of the string. This bottom resistor must therefore be chosen first to control the error introduced by this bias current. Rev. A | Page 13 of 16 ADCMP670 OUTLINE DIMENSIONS 2.90 BSC 6 5 4 2.80 BSC 1.60 BSC 1 2 PIN 1 INDICATOR 3 0.95 BSC 1.90 BSC *1.00 MAX 0.10 MAX 0.50 0.30 SEATING PLANE 0.20 0.08 8° 4° 0° 0.60 0.45 0.30 *COMPLIANT TO JEDEC STANDARDS MO-193-AA WITH THE EXCEPTION OF PACKAGE HEIGHT AND THICKNESS. 102808-A *0.90 0.87 0.84 Figure 31. . 6-Lead Thin Small Outline Transistor Package [TSOT] (UJ-6) Dimensions shown in millimeters ORDERING GUIDE Model ADCMP670-1YUJZ-RL71 1 Temperature Range –40°C to +125°C Package Description 6-Lead Thin Small Outline Transistor Package [TSOT] Z = RoHS Compliant Part. Rev. A | Page 14 of 16 Package Option UJ-6 Branding M97 ADCMP670 NOTES Rev. A | Page 15 of 15 ADCMP670 NOTES ©2007-2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06493-0-7/09(A) Rev. A | Page 16 of 16