Single/Dual/Quad Comparators with
Accurate Reference Output
Data Sheet
ADCMP394/ADCMP395/ADCMP396
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
VCC
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 VCMR: 1 mV typical
Guarantees comparator output logic low from VCC = 0.9 V to
undervoltage lockout (UVLO)
ADCMP394
REF
REF
IN+
IN–
OUT
GND
Operating temperature range: −40°C to +125°C
Package types:
Figure 1.
8-lead, narrow body SOIC (ADCMP394)
10-lead MSOP (ADCMP395)
16-lead, narrow body SOIC (ADCMP396)
VCC
ADCMP395
REF
REF
APPLICATIONS
INA+
INA–
OUTA
OUTB
Battery management/monitoring
Power supply detection
Window comparators
INB+
INB–
Threshold detectors/discriminators
Microprocessor systems
GND
Figure 2.
VCC
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.
ADCMP396
REF
REF
INA+
INA–
OUTA
OUTB
OUTC
OUTD
INB+
INB–
INC+
INC–
IND+
IND–
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.
GND
Figure 3.
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.
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.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com