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

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

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

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

VCC

ADCMP394

OUTA

INA+

INA–

OUTB

INB+

INB–

GND

VCC

ADCMP395

REF

REF

OUTA

INA+

REF

INA–

OUTB

INB+

INB–

OUTC

INC+

INC–

OUTD

IND+

IND–

REF

GND

VCC

ADCMP396