Quad Comparator with
Known Power-Up State
Data Sheet
ADCMP393
FEATURES
Single-supply voltage operation: 2.3 V to 5.5 V
Rail-to-rail common-mode input voltage range
Low input offset voltage across V
CMR
: 1 mV typical
Guarantees comparator output logic low from V
CC
= 0.9 V to
undervoltage lockout (UVLO)
Operating temperature range: 40°C to +125°C
14-lead standard small outline package (SOIC)
14-lead thin shrink small outline package (TSSOP)
APPLICATIONS
Battery management/monitoring
Power supply detection
Window comparators
Threshold detectors/discriminators
Microprocessor systems
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
GENERAL DESCRIPTION
The ADCMP393 is a quad, rail-to-rail input, low power
comparator ideal for use in general-purpose applications. The
device operates from a single supply voltage of 2.3 V to 5.5 V
and draws a minimal amount of current. The quad ADCMP393
consumes only 26.8 µA of supply current. The low voltage and
low current operation of the ADCMP393 makes it ideal for
battery-powered systems.
The ADCMP393 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 comparator allows a defined output state upon
power-up. The comparator generates a logic low output while
the supply voltage is less than the UVLO threshold.
The ADCMP393 is available in a 14-lead narrow body SOIC
and TSSOP packages. The ADCMP393 is specified to operate
over the −40°C to +125°C extended temperature range.
OUTA
INA+
INA–
OUTB
INB+
INB–
OUTC
INC+
INC–
OUTD
IND+
IND–
GND
VCC
ADCMP393
12208-001
Rev. B Document Feedback
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ADCMP393* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
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EVALUATION KITS
ADCMP396 Evaluation Board
DOCUMENTATION
Data Sheet
ADCMP391/ADCMP392/ADCMP393: Single/Dual/Quad
Comparators with Known Power-Up State Data Sheet
DESIGN RESOURCES
ADCMP393 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
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ADCMP393 Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
Thermal Resistance ...................................................................... 4
ESD Caution .................................................................................. 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 9
Basic Comparator ......................................................................... 9
Rail-to-Rail Input (RRI) .............................................................. 9
Open-Drain Output ......................................................................9
Power-Up Behavior .......................................................................9
Crossover Bias Point .....................................................................9
Comparator Hysteresis .................................................................9
Typical Applications ....................................................................... 10
Adding Hysteresis....................................................................... 10
Window Comparator for Positive Voltage Monitoring ......... 10
Window Comparator for Negative Voltage Monitoring .......... 11
Programmable Sequencing Control Circuit ............................... 11
Mirrored Voltage Sequencer Example ..................................... 13
Threshold and Timeout Programmable Voltage Supervisor .... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
REVISION HISTORY
10/14Rev. A to Rev. B
Added TSSOP Package (Throughout) ........................................... 1
Changes to Data Sheet Title ...................................................................... 1
Added Figure 3; Renumbered Sequentially .................................. 5
Changes to Open-Drain Output Section ......................................... 9
Changes to Programming Sequencing Control Circuit Section;
Added Figure 25; Changes to Figure 26 ........................................ 11
Changes to Figure 27
and Figure 28............................................. 12
Changes to Figure 29 ...................................................................... 13
Changes to Mirrored Voltage Sequencer Example Section ...... 13
Changes to Figure 30, and Figure 31............................................ 14
Added Figure 32, Outline Dimensions ........................................ 15
Changes to Ordering Guide .......................................................... 15
6/14Rev. 0 to Rev. A
Changes to Product Title ................................................................. 1
Changes to Mirrored Voltage Sequencer Example Section ...... 14
Changes to Threshold and Timeout Programmable Voltage
Supervisor Section .......................................................................... 14
5/14—Revision 0: Initial Versi on
Rev. B | Page 2 of 15

ADCMP393ARZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Analog Comparators Quad Comparator
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