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MAX918 Datasheet

  • MAX918

  • " SOT23, 1.8V, 750nA Comparator with Internal 1.245V 1.5% Vo...

  • Maxim   Maxim

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19-1512; Rev 0; 7/99
SOT23, 1.8V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
General Description
The MAX917鈥揗AX920 nanopower comparators in
space-saving SOT23 packages feature Beyond-the-
Rails鈩?inputs and are guaranteed to operate down to
+1.8V. The MAX917/MAX918 feature an on-board
1.245V 鹵1.5% reference and draw an ultra-low supply
current of only 750nA, while the MAX919/MAX920 (with-
out reference) require just 380nA of supply current.
These features make the MAX917鈥揗AX920 family of
comparators ideal for all 2-cell battery applications,
including monitoring/management.
The unique design of the output stage limits supply-cur-
rent surges while switching, virtually eliminating the
supply glitches typical of many other comparators. This
design also minimizes overall power consumption
under dynamic conditions. The MAX917/MAX919 have
a push/pull output stage that sinks and sources current.
Large internal output drivers allow Rail-to-Rail
廬
output
swing with loads up to 8mA. The MAX918/MAX920
have an open-drain output stage that makes them suit-
able for mixed-voltage system design.
Features
o
Ultra-Low Supply Current
380nA per Comparator (MAX919/MAX920)
750nA per Comparator with Reference
(MAX917/MAX918)
o
Guaranteed to Operate Down to +1.8V
o
Internal 1.245V 鹵1.5% Reference
(MAX917/MAX918)
o
Input Voltage Range Extends 200mV
Beyond-the-Rails
o
CMOS Push/Pull Output with 鹵8mA Drive
Capability (MAX917/MAX919)
o
Open-Drain Output Versions Available
(MAX918/MAX920)
o
Crowbar-Current-Free Switching
o
Internal Hysteresis for Clean Switching
o
No Phase Reversal for Overdriven Inputs
o
Space-Saving SOT23 Package
MAX917鈥揗AX920
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
PART
MAX917EUK-T
MAX917ESA
MAX918EUK-T
MAX918ESA
MAX919EUK-T
MAX919ESA
MAX920EUK-T
MAX920ESA
Ordering Information
TEMP.
RANGE
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
PIN-
SOT
PACKAGE TOP MARK
5 SOT23-5
8 SO
5 SOT23-5
8 SO
5 SOT23-5
8 SO
5 SOT23-5
8 SO
ADIQ
鈥?/div>
ADIR
鈥?/div>
ADIS
鈥?/div>
ADIT
鈥?/div>
Selector Guide
PART
MAX917
MAX918
MAX919
MAX920
INTERNAL
REFERENCE
Yes
Yes
No
No
OUTPUT
TYPE
Push/Pull
Open-Drain
Push/Pull
Open-Drain
SUPPLY
CURRENT
(nA)
750
750
380
380
V
EE
2
Pin Configurations
TOP VIEW
OUT
1
5
V
CC
MAX917
MAX918
MAX919
MAX920
4
IN- (REF)
Typical Application Circuit appears at end of data sheet.
Beyond-the-Rails is a trademark of Maxim Integrated Products.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
IN+
3
( ) ARE FOR MAX917/MAX918.
SOT23-5
Pin Configurations continue at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.

MAX918 PDF文件相關(guān)型號

MAX919,MAX920

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