Datasheet ADCMP391, ADCMP392, ADCMP393 (Analog Devices)

Single/Dual/Quad Comparators With Known Power-Up State Data Sheet ADCMP391/ ADCMP392/ ADCMP393 FEATURES FUNCTIONAL BLOCK DIAGRAMS Single-supply voltage operation: 2.3 V to 5.5 V VCC Rail-to-rail common-mode input voltage range ADCMP391 Low input offset voltage across VCMR: 1 mV typical IN+ Guarantees comparator output logic low from V OUT CC = 0.9 V to IN– undervoltage lockout (UVLO)
001
Operating temperature range: −40°C to +125°C GND
12206-
Package types:
Figure 1.
8-lead, narrow body SOIC (ADCMP391/ ADCMP392) 14-lead, narrow body SOIC (ADCMP393) VCC 14-lead TSSOP (ADCMP393) ADCMP392 APPLICATIONS INA+ OUTA INA– Battery management/monitoring INB+ OUTB Power supply detection INB–
102
Window comparators GND
12206-
Threshold detectors/discriminators
Figure 2.
Microprocessor systems VCC GENERAL DESCRIPTION ADCMP393
The ADCMP391/ADCMP392/ADCMP393 are
INA+ OUTA INA–
single/dual/quad rail-to-rail input, low power comparators ideal
INB+
for use in general-purpose applications. These comparators
OUTB INB–
operate from a single supply voltage of 2.3 V to 5.5 V and draw
INC+ OUTC
a minimal amount of current. The single ADCMP391
INC–
consumes only 18.6 µA of supply current. The dual ADCMP392
IND+ OUTD IND–
and the quad ADCMP393 consumes 22.1 µA and 26.8 µA of 103 supply current, respectively. The low voltage and low current
GND
12206- operation of these devices makes it ideal for battery-powered Figure 3. systems. The comparators features a common-mode input voltage range of 200 mV beyond rails, an offset voltage of 1 mV typical across the ful 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 −40°C to +125°C extended temperature range.
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Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BASIC COMPARATOR RAIL-TO-RAIL INPUT (RRI) OPEN-DRAIN OUTPUT POWER-UP BEHAVIOR CROSSOVER BIAS POINT COMPARATOR HYSTERESIS TYPICAL APPLICATIONS ADDING HYSTERESIS WINDOW COMPARATOR FOR POSITIVE VOLTAGE MONITORING WINDOW COMPARATOR FOR NEGATIVE VOLTAGE MONITORING PROGRAMMABLE SEQUENCING CONTROL CIRCUIT MIRRORED VOLTAGE SEQUENCER EXAMPLE THRESHOLD AND TIMEOUT PROGRAMMABLE VOLTAGE SUPERVISOR OUTLINE DIMENSIONS ORDERING GUIDE