Single/Dual/Quad Comparators with Accurate Reference Output Data Sheet ADCMP394/ADCMP395/ADCMP396 FEATURES FUNCTIONAL BLOCK DIAGRAMS VCC High accuracy reference output voltage: 1 V 0.9% Single-supply voltage operation: 2.3 V to 5.5 V ADCMP394 Rail-to-rail common-mode input voltage range REF REF Low input offset voltage across V : 1 mV typical CMR IN+ Guarantees comparator output logic low from V = 0.9 V to CC OUT IN undervoltage lockout (UVLO) GND Operating temperature range: 40C to +125C Figure 1. Package types: 8-lead, narrow body SOIC (ADCMP394) VCC 10-lead MSOP (ADCMP395) ADCMP395 16-lead, narrow body SOIC (ADCMP396) REF REF APPLICATIONS INA+ OUTA Battery management/monitoring INA INB+ Power supply detection OUTB INB Window comparators Threshold detectors/discriminators GND Microprocessor systems Figure 2. VCC GENERAL DESCRIPTION The ADCMP394/ADCMP395/ADCMP396 are single/dual/quad ADCMP396 rail-to-rail input, low power comparator ideal for use in general- REF REF purpose applications. These comparators operate from a supply INA+ OUTA voltage of 2.3 V to 5.5 V and draw a minimal amount of INA INB+ current. The single ADCMP394 consumes only 33.9 A of OUTB INB supply current. The dual ADCMP395 and quad ADCMP396 INC+ OUTC consumes 37.2 A and 41.6 A of supply current respectively. INC The low voltage and low current operation of these devices IND+ OUTD IND makes it ideal for battery-powered systems. The comparators features a common-mode input voltage range GND of 200 mV beyond rails, an offset voltage of 1 mV typical across Figure 3. the full common-mode range, and a UVLO monitor. In addition, the design of the comparator allows a defined output state upon power-up. The comparator generates a logic low output if the supply voltage is less than the UVLO threshold. The ADCMP394/ADCMP395/ADCMP396 incorporates a 1 V 0.9% buffered reference voltage. The reference voltage output can directly connect to the comparator input to serve as the trip value for precise monitoring and detection of positive voltage. It can also act as an offset when monitoring the negative voltage. The ADCMP394 and ADCMP396 are available in 8-pin and 16- lead, narrow body SOIC package, respectively. The ADCMP395 is available in a 10-lead MSOP package. The comparators are specified to operate over the 40C to +125C extended temperature range. Rev. B 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. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 12209-001 12209-203 12209-202ADCMP394/ADCMP395/ADCMP396 Data Sheet TABLE OF CONTENT Open-Drain Output ................................................................... 11 Features .............................................................................................. 1 Power-Up Behavior .................................................................... 11 Applications ....................................................................................... 1 Crossover Bias Point .................................................................. 11 General Description ......................................................................... 1 Comparator Hysteresis .............................................................. 11 Functional Block Diagrams ............................................................. 1 Typical Applications ....................................................................... 12 Revision History ............................................................................... 2 Adding Hysteresis....................................................................... 12 Specifications ..................................................................................... 3 Window Comparator for Positive Voltage Monitoring ......... 12 Absolute Maximum Ratings ............................................................ 4 Window Comparator for Negative Voltage Monitoring ....... 13 Thermal Resistance ...................................................................... 4 Programmable Sequencing Control Circuit ............................... 13 ESD Caution .................................................................................. 4 Mirrored Voltage Sequencer Example ..................................... 15 Pin Configurations and Function Descriptions ........................... 5 Threshold and Timeout Programmable Voltage Supervisor 16 Typical Performance Characteristics ............................................. 7 Outline Dimensions ....................................................................... 17 Theory of Operation ...................................................................... 11 Ordering Guide .......................................................................... 18 Basic Comparator ....................................................................... 11 Rail-to-Rail Input (RRI) ............................................................ 11 REVISION HISTORY 5/16Rev. A to Rev. B Changes to Equation 4 ................................................................... 12 Changes to Figure 39 ...................................................................... 14 3/15Rev. 0 to Rev. A Added ADCMP395/ADCMP396 (Throughout) ......................... 1 11/14Revision 0: Initial Version Rev. B Page 2 of 18