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MAX985EBT

更新时间： 2024-11-21 04:41:31
品牌 Logo 应用领域
美信 - MAXIM 比较器
页数 文件大小 规格书
13页 453K
描述
Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators

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MAX985EBT 数据手册

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19-1229; Rev 3; 9/02  
Micropower, Low-Voltage, UCSP/SC70,  
Rail-to-Rail I/O Comparators  
General Description  
____________________________Features  
ꢀ 11µA Quiescent Supply Current  
The MAX985/MAX986/MAX989/MAX990/MAX993/  
MAX994 single/dual/quad micropower comparators  
ꢀ 2.5V to 5.5V Single-Supply Operation  
®
feature low-voltage operation and Rail-to-Rail inputs  
and outputs. Their operating voltages range from 2.5V  
to 5.5V, making them ideal for both 3V and 5V systems.  
These comparators also operate with ±±.25V to ±2.ꢀ5V  
dual supplies. They consume only ±±µA of supply cur-  
rent while achieving a 300ns propagation delay.  
ꢀ Common-Mode Input Voltage Range Extends  
250mV Beyond the Rails  
ꢀ 300ns Propagation Delay  
ꢀ Push-Pull Output Stage Sinks and Sources  
Input bias current is typically ±.0pA, and input offset  
voltage is typically 0.5mV. Internal hysteresis ensures  
clean output switching, even with slow-moving input  
signals.  
8mA Current (MAX985/MAX989/MAX993)  
ꢀ Open-Drain Output Voltage Extends Beyond V  
CC  
(MAX986/MAX990/MAX994)  
ꢀ Unique Output Stage Reduces Output Switching  
The output stage’s unique design limits supply-current  
surges while switching, virtually eliminating the supply  
glitches typical of many other comparators. The  
MAX985/MAX989/MAX993 have a push-pull output  
stage that sinks as well as sources current. Large inter-  
nal output drivers allow rail-to-rail output swing with  
loads up to 8mA. The MAX986/MAX990/MAX994 have  
an open-drain output stage that can be pulled beyond  
Current, Minimizing Overall Power Consumption  
ꢀ 80µA Supply Current at 1MHz Switching  
Frequency  
ꢀ No Phase Reversal for Overdriven Inputs  
ꢀ Available in Space-Saving Packages:  
UCSP (MAX985)  
V
to 6V (max) above V . These open-drain versions  
EE  
CC  
SOT23 (MAX985/MAX986/MAX989/MAX990)  
µMAX (MAX989/MAX990)  
are ideal for level translators and bipolar to single-  
ended converters.  
The single MAX985 is available in a chip-scale pack-  
age (UCSP™), significantly reducing the required PC  
board area. The single MAX985/MAX986 are available  
in 5-pin SCꢀ0 packages and the dual MAX989/MAX990  
are available in 8-pin SOT23 packages.  
Ordering Information  
PIN/BUMP-  
PACKAGE  
TOP  
MARK  
PART  
TEMP RANGE  
MAX985EBT-T*  
-40°C to +85°C  
-40°C to +85°C  
6 UCSP-6  
5 SC70-5  
AAY  
ABK  
MAX985EXK-T  
Selector Guide  
*UCSP reliability is integrally linked to the user’s assembly meth-  
ods, circuit board material, and environment. Refer to the UCSP  
Reliability section of this data sheet for more information.  
COMPARATORS  
PER PACKAGE  
OUTPUT  
STAGE  
PART  
Ordering Information continued at end of data sheet.  
Typical Application Circuit appears at end of data sheet.  
MAX985  
MAX986  
MAX989  
MAX990  
MAX993  
MAX994  
1
1
2
2
4
4
Push-Pull  
Open-Drain  
Push-Pull  
Pin Configurations  
Open-Drain  
Push-Pull  
TOP VIEW  
(BUMPS ON BOTTOM)  
Open-Drain  
IN+  
B1  
B2  
B3  
A1  
A2  
A3  
V
EE  
Applications  
Threshold Detectors/  
Discriminators  
Ground/Supply-Sensing  
Applications  
IR Receivers  
MAX985  
IN-  
OUT  
Portable/Battery-  
Powered Systems  
Mobile Communications  
Zero-Crossing Detectors  
Window Comparators  
Level Translators  
N.C.  
V
CC  
UCSP  
Digital Line Receivers  
Pin Configurations continued at end of data sheet.  
UCSP is a trademark of Maxim Integrated Products, Inc.  
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.  
________________________________________________________________ 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.  
1234567...13

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