Single/Dual/Quad Comparators With Known Power-Up State Data Sheet ADCMP391/ADCMP392/ADCMP393 FEATURES FUNCTIONAL BLOCK DIAGRAMS VCC Single-supply voltage operation: 2.3 V to 5.5 V Rail-to-rail common-mode input voltage range ADCMP391 Low input offset voltage across V : 1 mV typical CMR IN+ OUT IN Guarantees comparator output logic low from V = 0.9 V to CC undervoltage lockout (UVLO) GND Operating temperature range: 40C to +125C Package types: Figure 1. 8-lead, narrow body SOIC (ADCMP391/ADCMP392) VCC 14-lead, narrow body SOIC (ADCMP393) 14-lead TSSOP (ADCMP393) ADCMP392 INA+ OUTA APPLICATIONS INA INB+ Battery management/monitoring OUTB INB Power supply detection GND Window comparators Figure 2. Threshold detectors/discriminators Microprocessor systems VCC GENERAL DESCRIPTION ADCMP393 INA+ The ADCMP391/ADCMP392/ADCMP393 are OUTA INA single/dual/quad rail-to-rail input, low power comparators ideal INB+ OUTB for use in general-purpose applications. These comparators INB INC+ operate from a single supply voltage of 2.3 V to 5.5 V and draw OUTC INC a minimal amount of current. The single ADCMP391 IND+ OUTD consumes only 18.6 A of supply current. The dual ADCMP392 IND and the quad ADCMP393 consumes 22.1 A and 26.8 A of GND supply current, respectively. The low voltage and low current Figure 3. operation of these devices makes it ideal for battery-powered systems. The comparators features a common-mode input voltage range of 200 mV beyond rails, an offset voltage of 1 mV typical across the full common-mode range, and a UVLO monitor. In addition, the design of the comparators allows a defined output state upon power-up, a logic low output while the supply voltage is less than the UVLO threshold. The ADCMP391 and ADCMP392 are available in 8-lead, narrow body SOIC package while the ADCMP393 is available in a 14-lead, narrow body SOIC package and a 14-lead TSSOP package. The comparators are specified to operate over the 40C to +125C extended temperature range. Rev. D Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20142016 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 12206-001 12206-103 12206-102ADCMP391/ADCMP392/ADCMP393 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Open-Drain Output ................................................................... 10 Applications ....................................................................................... 1 Power-Up Behavior .................................................................... 10 General Description ......................................................................... 1 Crossover Bias Point .................................................................. 10 Functional Block Diagrams ............................................................. 1 Comparator Hysteresis .............................................................. 10 Revision History ............................................................................... 2 Typical Applications ....................................................................... 11 Specifications ..................................................................................... 3 Adding Hysteresis....................................................................... 11 Absolute Maximum Ratings ............................................................ 4 Window Comparator for Positive Voltage Monitoring ......... 11 Thermal Resistance ...................................................................... 4 Window Comparator for Negative Voltage Monitoring .......... 12 ESD Caution .................................................................................. 4 Programmable Sequencing Control Circuit ............................... 12 Pin Configurations and Function Descriptions ........................... 5 Mirrored Voltage Sequencer Example ..................................... 14 Typical Performance Characteristics ............................................. 7 Threshold and Timeout Programmable Voltage Supervisor .... 15 Theory of Operation ...................................................................... 10 Outline Dimensions ....................................................................... 16 Basic Comparator ....................................................................... 10 Ordering Guide .......................................................................... 17 Rail-to-Rail Input (RRI) ............................................................ 10 REVISION HISTORY 4/16Rev. C to Rev. D Changes to Programming Sequencing Control Circuit Section Changes to Adding Hysteresis Section ........................................ 11 Added Figure 25 Changes to Figure 26 ........................................ 11 Changes to Figure 34 ...................................................................... 13 Changes to Figure 27 and Figure 28 ............................................ 12 Changes to Figure 29 ...................................................................... 13 3/15Rev. B to Rev. C Changes to Mirrored Voltage Sequencer Example Section ...... 13 Added ADCMP391/ADCMP392 (Throughout) ......................... 1 Changes to Figure 30, and Figure 31 ........................................... 14 Changes to Equation 4.............................................................................. 12 Added Figure 32, Outline Dimensions ........................................ 15 Changes to Equation 13 and 15.............................................................. 13 Changes to Ordering Guide .......................................................... 15 Changes to Ordering Guide .......................................................... 18 6/14Rev. 0 to Rev. A 10/14Rev. A to Rev. B Changes to Product Title .................................................................. 1 Added TSSOP Package (Throughout) ........................................... 1 Changes to Mirrored Voltage Sequencer Example Section ...... 14 Changes to Data Sheet Title ...................................................................... 1 Changes to Threshold and Timeout Programmable Voltage Added Figure 3 Renumbered Sequentially .................................. 5 Supervisor Section .......................................................................... 14 Changes to Open-Drain Output Section ......................................... 9 5/14Revision 0: Initial Version Rev. D Page 2 of 17