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ADCMP395ARMZ-RL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
Single/Dual/Quad Comparators with
Accurate Reference Output
Data Sheet
ADCMP394/ADCMP395/ADCMP396
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
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
High accuracy reference output voltage: 1 V ± 0.9%
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
Package types:
8-lead, narrow body SOIC (ADCMP394)
10-lead MSOP (ADCMP395)
16-lead, narrow body SOIC (ADCMP396)
APPLICATIONS
Battery management/monitoring
Power supply detection
Window comparators
Threshold detectors/discriminators
Microprocessor systems
GENERAL DESCRIPTION
The ADCMP394/ADCMP395/ADCMP396 are single/dual/quad
rail-to-rail input, low power comparator ideal for use in general-
purpose applications. These comparators operate from a supply
voltage of 2.3 V to 5.5 V and draw a minimal amount of
current. The single ADCMP394 consumes only 33.9 μA of
supply current. The dual ADCMP395 and quad ADCMP396
consumes 37.2 μA and 41.6 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 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 −40°C to +125°C extended
temperature range.
FUNCTIONAL BLOCK DIAGRAMS
Figure 1.
Figure 2.
Figure 3.
OUT
IN+
REF REF
IN–
GND
V
CC
ADCMP394
12209-001
OUTA
INA+
INA–
OUTB
INB+
INB–
GND
V
CC
ADCMP395
REF
REF
12209-202
OUTA
INA+
REF
INA–
OUTB
INB+
INB–
OUTC
INC+
INC–
OUTD
IND+
IND–
REF
GND
V
CC
ADCMP396
12209-203
ADCMP394/ADCMP395/ADCMP396 Data Sheet
Rev. B | Page 2 of 18
TABLE OF CONTENT
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 ...................................................................... 11
Basic Comparator ....................................................................... 11
Rail-to-Rail Input (RRI) ............................................................ 11
Open-Drain Output ................................................................... 11
Power-Up Behavior .................................................................... 11
Crossover Bias Point .................................................................. 11
Comparator Hysteresis .............................................................. 11
Typical Applications ....................................................................... 12
Adding Hysteresis....................................................................... 12
Window Comparator for Positive Voltage Monitoring ......... 12
Window Comparator for Negative Voltage Monitoring ....... 13
Programmable Sequencing Control Circuit ............................... 13
Mirrored Voltage Sequencer Example ..................................... 15
Threshold and Timeout Programmable Voltage Supervisor 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 18
REVISION HISTORY
5/16—Rev. A to Rev. B
Changes to Equation 4 ................................................................... 12
Changes to Figure 39 ...................................................................... 14
3/15—Rev. 0 to Rev. A
Added ADCMP395/ADCMP396 (Throughout) ......................... 1
11/14—Revision 0: Initial Version
Data Sheet ADCMP394/ADCMP395/ADCMP396
Rev. B | Page 3 of 18
SPECIFICATIONS
V
CC
= 2.3 V to 5.5 V, T
A
= −40°C to +125°C, V
CMR
= −200 mV to V
CC
+ 200 mV, unless otherwise noted. Typical values are at T
A
= 25°C.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
1
POWER SUPPLY
Supply Voltage Range V
CC
2.3 5.5 V
0.9 UVLO
RISE
V Guarantees comparator output low
V
CC
Quiescent Current I
CC
ADCMP394 33.9 47.9 µA All outputs in high-Z state, V
OD
= 0.1 V
32.6 45.8 µA All outputs low, V
OD
= 0.1 V
ADCMP395 37.2 51.9 µA All outputs in high-Z state, V
OD
= 0.1 V
35.9 49.2 µA All outputs low, V
OD
= 0.1 V
ADCMP396 41.6 59.4 µA All outputs in high-Z state, V
OD
= 0.1 V
41.3 56.4 µA All outputs low, V
OD
= 0.1 V
UNDERVOLTAGE LOCKOUT
V
CC
Rising UVLO
RISE
2.062 2.162 2.262 V
Hysteresis UVLO
HYS
5 25 50 mV
REFERENCE OUTPUT
Reference Output Voltage V
REF
0.991 1 1.008 V I
REF
= ±1 mA, T
A
= −40°C to +85°C
0.991 1 1.008 V I
REF
= ±1 mA
COMPARATOR INPUT
Common-Mode Input Range V
CMR
−200
V
CC
+ 200 mV
Input Offset Voltage V
OS
0.5 2.5 mV IN+ = IN− = 1 V
0.5 2.5 mV IN+ = IN− = 1 V, T
A
= −40°C to +85°C
1 5 mV
1 5 mV T
A
= −40°C to +85°C
Input Offset Current I
OS
10 nA V
CMR
= −50 mV to V
CC
+ 50 mV
Input Bias Current I
BIAS
±30 nA IN+ = IN− = 1 V
±80 nA V
CMR
= −50 mV to V
CC
+ 50 mV
±10 nA V
CMR
= −50 mV to V
CC
+ 50 mV, T
A
= −40°C to +85°C
Input Hysteresis V
HYST
3 4 mV V
CM
= 1 V
6 8 mV
COMPARATOR OUTPUT
Output Low Voltage V
OL
0.1 0.3 V V
CC
= 2.3 V, I
SINK
= 2.5 mA
0.01 0.15 V V
CC
= 0.9 V, I
SINK
= 100 µA
Output Leakage Current I
LEAK
150 nA V
OUT
= 0 V to 5.5 V
COMPARATOR CHARACTERISTICS
Power Supply Rejection Ratio PSRR 60 80
dB
Common-Mode Rejection Ratio CMRR 50 74
dB
Voltage Gain A
V
132 dB
Rise Time
2
t
R
1.1 µs V
OUT
= 10% to 90% of V
CC
Fall Time
2
t
F
0.15 µs V
OUT
= 90% to 10% of V
CC
Propagation Delay
Input Rising
2
t
PROP_R
4.7 µs V
CM
= 1 V, V
CC
= 2.3 V, V
OD
= 10 mV
4.9
µs V
CM
= 1 V, V
CC
= 5 V, V
OD
= 10 mV
2.8 µs V
CM
= 1 V, V
CC
= 2.3 V, 100 mV overdrive
3.2 µs V
CM
= 1 V, V
CC
= 5 V, 100 mV overdrive
ADCMP395 Channel B 4.9 µs V
CM
= 1 V, V
CC
= 2.3 V, V
OD
= 10 mV
9.7 µs V
CM
= 1 V, V
CC
= 5 V, V
OD
= 10 mV
Input Falling
2
t
PROP_F
4.5 µs V
CM
= 1 V, V
CC
= 2.3 V, V
OD
= 10 mV
9.5 µs V
CM
= 1 V, V
CC
= 5 V, V
OD
= 10 mV
2 µs V
CM
= 1 V, V
CC
= 2.3 V, 100 mV overdrive
4.2 µs V
CM
= 1 V, V
CC
= 5 V, 100 mV overdrive
ADCMP395 Channel B 4.7 µs V
CM
= 1 V, V
CC
= 2.3 V, V
OD
= 10 mV
5 µs V
CM
= 1 V, V
CC
= 5 V, V
OD
= 10 mV
1
V
OD
is overdrive voltage.
2
R
PULL-UP
= 10 kΩ, and C
L
= 50 pF.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

ADCMP395ARMZ-RL7

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Analog Comparators Dual Comparator a nd reference
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