Single/Dual/Quad Comparators. ADCMP391 Datasheet

ADCMP391 Comparators. Datasheet pdf. Equivalent

ADCMP391 Datasheet
Recommendation ADCMP391 Datasheet
Part ADCMP391
Description Single/Dual/Quad Comparators
Feature ADCMP391; Data Sheet Single/Dual/Quad Comparators With Known Power-Up State ADCMP391/ADCMP392/ADCMP393 FEATU.
Manufacture Analog Devices
Datasheet
Download ADCMP391 Datasheet




Analog Devices ADCMP391
Data Sheet
Single/Dual/Quad Comparators
With Known Power-Up State
ADCMP391/ADCMP392/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 VCMR: 1 mV typical
Guarantees comparator output logic low from VCC = 0.9 V to
undervoltage lockout (UVLO)
Operating temperature range: −40°C to +125°C
Package types:
8-lead, narrow body SOIC (ADCMP391/ADCMP392)
14-lead, narrow body SOIC (ADCMP393)
14-lead TSSOP (ADCMP393)
APPLICATIONS
Battery management/monitoring
Power supply detection
Window comparators
Threshold detectors/discriminators
Microprocessor systems
GENERAL DESCRIPTION
The ADCMP391/ADCMP392/ADCMP393 are
single/dual/quad rail-to-rail input, low power comparators ideal
for use in general-purpose applications. These comparators
operate from a single supply voltage of 2.3 V to 5.5 V and draw
a minimal amount of current. The single ADCMP391
consumes only 18.6 µA of supply current. The dual ADCMP392
and the quad ADCMP393 consumes 22.1 µA and 26.8 µA of
supply current, respectively. The low voltage and low current
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
−40°C to +125°C extended temperature range.
FUNCTIONAL BLOCK DIAGRAMS
VCC
ADCMP391
IN+
OUT
IN–
GND
Figure 1.
VCC
INA+
INA–
INB+
INB–
ADCMP392
OUTA
OUTB
GND
Figure 2.
VCC
INA+
INA–
INB+
INB–
INC+
INC–
IND+
IND–
ADCMP393
OUTA
OUTB
OUTC
OUTD
GND
Figure 3.
Rev. D
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Analog Devices ADCMP391
ADCMP391/ADCMP392/ADCMP393
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Pin Configurations and Function Descriptions ........................... 5
Typical Performance Characteristics ............................................. 7
Theory of Operation ...................................................................... 10
Basic Comparator ....................................................................... 10
Rail-to-Rail Input (RRI) ............................................................ 10
REVISION HISTORY
4/16—Rev. C to Rev. D
Changes to Adding Hysteresis Section ........................................ 11
Changes to Figure 34...................................................................... 13
3/15—Rev. B to Rev. C
Added ADCMP391/ADCMP392 (Throughout) ......................... 1
Changes to Equation 4..............................................................................12
Changes to Equation 13 and 15..............................................................13
Changes to Ordering Guide .......................................................... 18
10/14—Rev. 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
Data Sheet
Open-Drain Output ................................................................... 10
Power-Up Behavior.................................................................... 10
Crossover Bias Point .................................................................. 10
Comparator Hysteresis .............................................................. 10
Typical Applications....................................................................... 11
Adding Hysteresis....................................................................... 11
Window Comparator for Positive Voltage Monitoring......... 11
Window Comparator for Negative Voltage Monitoring .......... 12
Programmable Sequencing Control Circuit............................... 12
Mirrored Voltage Sequencer Example..................................... 14
Threshold and Timeout Programmable Voltage Supervisor .... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 17
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
6/14—Rev. 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 Version
Rev. D | Page 2 of 17



Analog Devices ADCMP391
Data Sheet
ADCMP391/ADCMP392/ADCMP393
SPECIFICATIONS
VCC = 2.3 V to 5.5 V, TA = −40°C to +125°C, VCMR = −200 mV to VCC + 200 mV, unless otherwise noted. Typical values are at TA = 25°C.
Table 1.
Parameter
POWER SUPPLY
Supply Voltage
VCC Quiescent Current
ADCMP391
ADCMP392
ADCMP393
UNDERVOLTAGE LOCKOUT
VCC Rising
Hysteresis
COMPARATOR INPUT
Common-Mode Input Range
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Hysteresis
COMPARATOR OUTPUT
Output Low Voltage
Output Leakage Current
COMPARATOR CHARACTERISTICS
Power Supply Rejection Ratio
Common-Mode Rejection Ratio
Voltage Gain
Rise Time2
Fall Time2
Propagation Delay
Input Rising2
ADCMP392 Channel B
Input Falling2
ADCMP392 Channel B
Symbol
VCC
ICC
UVLORISE
UVLOHYS
VCMR
VOS
IOS
IBIAS
VHYS
VOL
ILEAK
PSRR
CMRR
AV
tR
tF
tPROP_R
tPROP_F
Min Typ Max
2.3 5.5
0.9 UVLORISE
18.6 24.7
18.5 23.8
22.1 29.3
20.7 26.5
26.8 36.8
26.6 34.3
2.062
5
2.162
25
2.262
50
−200
0.5
0.5
1
1
3
6
VCC + 200
2.5
2.5
5
5
10
±30
±80
±10
4
8
0.1 0.3
0.01 0.15
150
60 80
50 74
132
1.1
0.15
4.7
4.9
2.8
3.2
4.9
9.7
4.5
9.5
2
4.2
4.7
5
Unit Test Conditions/Comments1
V
V Guarantees comparator output low
µA All outputs in high-Z state, VOD = 0.1 V
µA All outputs low, VOD = 0.1 V
µA All outputs in high-Z state, VOD = 0.1 V
µA All outputs low, VOD = 0.1 V
µA All outputs in high-Z state, VOD = 0.1 V
µA All outputs low, VOD = 0.1 V
V
mV
mV
mV INx+ = INx− = 1 V
mV INx+ = INx− = 1 V, TA = −40°C to +85°C
mV
mV TA = −40°C to +85°C
nA VCMR = −50 mV to VCC + 50 mV
nA INx+ = INx− = 1 V
nA VCMR = −50 mV to VCC + 50 mV
nA VCMR = −50 mV to VCC + 50 mV, TA = −40°C to +85°C
mV VCM = 1 V
mV
V VCC = 2.3 V, ISINK = 2.5 mA
V VCC = 0.9 V, ISINK = 100 µA
nA VOUT = 0 V to 5.5 V
dB
dB
dB
µs VOUT = 10% to 90% of VCC
µs VOUT = 90% to 10% of VCC
µs VCM = 1 V, VCC = 2.3 V, VOD = 10 mV
µs VCM = 1 V, VCC = 5 V, VOD = 10 mV
µs VCM = 1 V, VCC = 2.3 V, VOD = 100 mV
µs VCM = 1 V, VCC = 5 V, VOD = 100 mV
µs VCM = 1 V, VCC = 2.3 V, VOD = 10 mV
µs VCM = 1 V, VCC = 5 V, VOD= 10 mV
µs VCM = 1 V, VCC = 2.3 V, VOD = 10 mV
µs VCM = 1 V, VCC = 5 V, VOD = 10 mV
µs VCM = 1 V, VCC = 2.3 V, VOD = 100 mV
µs VCM = 1 V, VCC = 5 V, VOD = 100 mV
µs VCM = 1 V, VCC = 2.3 V, VOD = 10 mV
µs VCM = 1 V, VCC = 5 V, VOD = 10 mV
1 VOD = overdrive voltage.
2 RPULLUP = 10 kΩ, and CL = 50 pF.
Rev. D | Page 3 of 17







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