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MAX9025

更新时间： 2024-11-04 04:41:35
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
13页 813K
描述
UCSP, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference

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MAX9025 数据手册

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19-3241; Rev 0; 5/04  
UCSP, 1.8V, Nanopower, Beyond-the-Rails  
Comparators With/Without Reference  
General Description  
Features  
The MAX9025–MAX9028 nanopower comparators in  
space-saving chip-scale (UCSP™) packages feature  
Beyond-the-Rails™ inputs and are guaranteed to oper-  
ate down to +1.8V. The MAX9025/MAX9026 feature an  
on-board 1.236V 1ꢀ reference and draw an ultra-low  
supply current of only 1µA, while the MAX9027/  
MAX9028 (without reference) require just 0.6µA of supply  
current. These features make the MAX9025–MAX9028  
family of comparators ideal for all 2-cell battery-  
monitoring/management applications.  
♦ Space-Saving UCSP Package (1mm x 1.52mm)  
♦ Ultra-Low Supply Current  
0.6µA (MAX9027/MAX9028)  
1µA with Reference (MAX9025/MAX9026)  
♦ Guaranteed to Operate Down to +1.8V  
♦ Internal 1.236V ±1% Reference (MAX9025/MAX9026)  
♦ Input Voltage Range Extends 200mV  
Beyond-the-Rails  
The unique design of the output stage limits supply-  
current surges while switching, virtually eliminating the  
supply glitches typical of many other comparators. This  
design also minimizes overall power consumption under  
dynamic conditions. The MAX9025/MAX9027 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 MAX9026/MAX9028  
have an open-drain output stage that makes them suit-  
able for mixed-voltage system design. All devices are  
available in the miniature 6-bump UCSP packages.  
♦ CMOS Push-Pull Output with ±5mA Drive  
Capability (MAX9025/MAX9027)  
♦ Open-Drain Output Versions Available  
(MAX9026/MAX9028)  
♦ Crowbar-Current-Free Switching  
♦ Internal Hysteresis for Clean Switching  
♦ No Phase Reversal for Overdriven Inputs  
Ordering Information  
Refer to the MAX9117 data sheet for similar comparators  
in 5-pin SC70 packages and the MAX9017 data sheet for  
similar dual comparators in 8-pin SOT23 packages.  
TEMP  
RANGE  
BUMP-  
PACKAGE  
TOP  
MARK  
PART  
MAX9025EBT-T  
MAX9026EBT-T  
MAX9027EBT-T  
MAX9028EBT-T  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
6 UCSP-6  
6 UCSP-6  
6 UCSP-6  
6 UCSP-6  
ADB  
ADC  
ADD  
ADE  
Applications  
2-Cell Battery Monitoring/Management  
Ultra-Low-Power Systems  
Mobile Communications  
Notebooks and PDAs  
Pin Configurations  
TOP VIEW  
Sensing at Ground or Supply Line  
Telemetry and Remote Systems  
Medical Instruments  
(BUMPS ON BOTTOM)  
B
A
1
V
CC  
IN+  
Selector Guide  
MAX9025–  
MAX9028  
SUPPLY  
INTERNAL  
REFERENCE  
OUTPUT  
TYPE  
PART  
CURRENT  
(µA)  
REF  
2
OUT  
(V  
)
EE  
MAX9025  
MAX9026  
MAX9027  
MAX9028  
Yes  
Yes  
No  
Push-Pull  
Open-Drain  
Push-Pull  
1.0  
1.0  
0.6  
0.6  
No  
Open-Drain  
IN-  
V
EE  
3
Typical Application Circuit appears at end of data sheet.  
UCSP  
Beyond-the-Rails and UCSP are trademarks of Maxim Integrated  
Products, Inc.  
( ) MAX9027/MAX9028 PINS  
________________________________________________________________ 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.  
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