MAX9117 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – SC70, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference

19-1862; Rev 2; 8/02
SC70, 1.8V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
General Description
The MAX9117–MAX9120 nanopower comparators in
space-saving SC70 packages feature Beyond-the-
Rails™ inputs and are guaranteed to operate down to
+1.8V. The MAX9117/MAX9118 feature an on-board
1.252V ±1.75% reference and draw an ultra-low supply
current of only 600nA, while the MAX9119/MAX9120
(without reference) require just 350nA of supply current.
These features make the MAX9117–MAX9120 family of
comparators ideal for all 2-cell battery-monitoring/man-
agement applications.
The unique design of the output stage limits supply-cur-
rent surges while switching, virtually eliminating the sup-
ply glitches typical of many other comparators. This
design also minimizes overall power consumption under
dynamic conditions. The MAX9117/MAX9119 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 5mA. The MAX9118/MAX9120
have an open-drain output stage that makes them suit-
able for mixed-voltage system design. All devices are
available in the ultra-small 5-pin SC70 package.
Applications
2-Cell Battery Monitoring/Management
Ultra-Low-Power Systems
Mobile Communications
Notebooks and PDAs
Threshold Detectors/Discriminators
Sensing at Ground or Supply Line
Telemetry and Remote Systems
Medical Instruments
Selector Guide
PART
MAX9117
MAX9118
MAX9119
MAX9120
INTERNAL
REFERENCE
Yes
Yes
No
No
OUTPUT
TYPE
Push-Pull
Open-Drain
Push-Pull
Open-Drain
SUPPLY
CURRENT
(nA)
600
600
350
350
Typical Application Circuit appears at end of data sheet.
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Features
o Space-Saving SC70 Package (Half the Size of
SOT23)
o Ultra-Low Supply Current
350nA Per Comparator (MAX9119/MAX9120)
600nA Per Comparator with Reference
(MAX9117/MAX9118)
o Guaranteed to Operate Down to +1.8V
o Internal 1.252V ±1.75% Reference
(MAX9117/MAX9118)
o Input Voltage Range Extends 200mV
Beyond-the-Rails
o CMOS Push-Pull Output with ±5mA Drive
Capability (MAX9117/MAX9119)
o Open-Drain Output Versions Available
(MAX9118/MAX9120)
o Crowbar-Current-Free Switching
o Internal Hysteresis for Clean Switching
o No Phase Reversal for Overdriven Inputs
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE
MAX9117EXK-T
MAX9118EXK-T
MAX9119EXK-T
MAX9120EXK-T
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
5 SC70-5
5 SC70-5
5 SC70-5
5 SC70-5
TOP
MARK
ABW
ABX
ABY
ABZ
TOP VIEW
Pin Configurations
OUT 1
5 V_CC
V_EE 2
IN+ 3
MAX9117
MAX9118
MAX9119
MAX9120
4 IN- (REF)
( ) ARE FOR MAX9117/MAX9118.
SC70
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.