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Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
19-2874; Rev 5; 1/16
Applications
● 2-Cell Battery
Monitoring/Management
● Ultra-Low Power Systems
● Mobile Communications
● Notebooks and PDAs
● Threshold Detectors/
Discriminators
● Window Detectors
● Sensing at Ground or
Supply Line
● Telemetry and Remote
Systems
● Medical Instruments
General Description
The single MAX9015/MAX9016 and dual MAX9017–
MAX9020 nanoPower comparators in space-saving
SOT23 packages feature Beyond-the-Rails™ inputs and
are guaranteed to operate down to 1.8V. The A-grade
packages feature an on-board 1.236V ±1% reference,
while the B-grade packages feature a 1.24V ±1.75%
reference. An ultra-low supply current of 0.85μA (MAX9019/
MAX9020), 1μA (MAX9015/MAX9016), or 1.2μA (MAX9017/
MAX9018) makes this product family of comparators ideal
for all 2-cell battery monitoring/management applications.
The unique design of the devices output stage limits supply-
current surges while switching, which virtually eliminates
the supply glitches typical of many other comparators.
This design also minimizes overall power consumption
under dynamic conditions. The MAX9015/MAX9017/
MAX9019 have a push-pull output stage that sinks and
sources current. Large internal output drivers allow rail-
to-rail output swing with loads up to 6mA. The MAX9016/
MAX9018/MAX9020 have an open-drain output stage
that makes them suitable for mixed-voltage system
design. All devices are available in the ultra-small 8-pin
SOT23 package.
Refer to the MAX9117–MAX9120 data sheet for similar
single comparators with or without reference in a tiny
SC70 package.
Benets and Features
● Ultra-Low Total Supply Current
• 0.85μA (MAX9019/MAX9020)
• 1.0μA (MAX9015A/MAX9016A)
• 1.2μA (MAX9017/MAX9018)
● Guaranteed Operation Down to 1.8V
● Precision V
OS
< 5mV (max)
● Internal 1.236V ±1% Reference (A Grade)
● Input Voltage Range Extends 200mV
Beyond-the-Rails
● CMOS Push-Pull Output with ±6mA Drive Capability
(MAX9015/MAX9017/MAX9019)
● Open-Drain Output Versions Available
(MAX9016/MAX9018/MAX9020)
● Crowbar-Current-Free Switching
● Internal 4mV Hysteresis for Clean Switching
● No Phase Reversal for Overdriven Inputs
● Dual Versions in Space-Saving 8-Pin SOT23 Package
Ordering Information at end of data sheet
Functional Diagrams
MAX9015
MAX9016
IN+
OUT
V
CC
V
EE
IN-
REF
1.24V
6
7
REF
4
MAX9017
MAX9018
V
CC
8
INA+
OUTA
V
CC
V
EE
REF/INA-
REF
1.24V
1
8
INB+
4
INB-
OUTB 7
3
2
5
6
3
2
5
6
INA+
V
CC
8
MAX9019
MAX9020
1
7
OUTA
OUTB
INA-
INB+
INB-
V
EE
4
3
2
1
MAX9015–MAX9020 SOT23, Dual, Precision, 1.8V,
nanoPower Comparators
With/Without Reference
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