Quad Comparator with
Known Power-Up State
ADCMP393
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
VCC
Single-supply voltage operation: 2.3 V to 5.5 V
Rail-to-rail common-mode input voltage range
Low input offset voltage across VCMR: 1 mV typical
Guarantees comparator output logic low from VCC = 0.9 V to
undervoltage lockout (UVLO)
ADCMP393
INA+
OUTA
INA–
Operating temperature range: −40°C to +125°C
14-lead standard small outline package (SOIC)
14-lead thin shrink small outline package (TSSOP)
INB+
OUTB
INB–
INC+
OUTC
INC–
APPLICATIONS
Battery management/monitoring
Power supply detection
Window comparators
IND+
OUTD
IND–
Threshold detectors/discriminators
Microprocessor systems
GND
Figure 1.
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.
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 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.
Rev. B
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