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MAX985_V5

更新时间： 2024-11-18 12:10:19
品牌 Logo 应用领域
美信 - MAXIM 比较器
页数 文件大小 规格书
12页 309K
描述
Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O Comparators

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MAX985_V5 数据手册

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±9-±229; Rev 5; 4/±2  
Micropower, Low-Voltage, UCSP/SC70,  
Rail-to-Rail I/O Comparators  
56803/MAX94  
General Description  
____________________________Features  
The MAX985/MAX986/MAX989/MAX990/MAX993/  
MAX994 single/dual/quad micropower comparators  
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.  
o 11µA Quiescent Supply Current  
o 2.5V to 5.5V Single-Supply Operation  
o Common-Mode Input Voltage Range Extends  
250mV Beyond the Rails  
o 300ns Propagation Delay  
o Push-Pull Output Stage Sinks and Sources  
8mA Current (MAX985/MAX989/MAX993)  
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.  
o Open-Drain Output Voltage Extends Beyond V  
CC  
(MAX986/MAX990/MAX994)  
o 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  
o 80µA Supply Current at 1MHz Switching  
Frequency  
o No Phase Reversal for Overdriven Inputs  
o Available in Space-Saving Packages:  
UCSP (MAX985)  
SOT23 (MAX985/MAX986/MAX989/MAX990)  
V
to 6V (max) above V . These open-drain versions  
EE  
CC  
®
µMAX (MAX989/MAX990)  
are ideal for level translators and bipolar to single-  
ended converters.  
Ordering Information  
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.  
PART  
PIN-PACKAGE  
TOP MARK  
AAY  
MAX985EBT+T  
MAX985EXK+T  
6 UCSP-6  
ABK  
5 SCꢀ0-5  
Note: All devices are specified over the -40°C to +85°C operating  
temperature range.  
Selector Guide  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
COMPARATORS  
PER PACKAGE  
OUTPUT  
STAGE  
PART  
T = Tape and reel.  
MAX985  
MAX986  
MAX989  
MAX990  
MAX993  
MAX994  
±
±
2
2
4
4
Push-Pull  
Open-Drain  
Push-Pull  
Ordering Information continued at end of data sheet.  
Typical Application Circuit appears at end of data sheet.  
Pin Configurations  
Open-Drain  
Push-Pull  
TOP VIEW  
Open-Drain  
(BUMPS ON BOTTOM)  
IN+  
B1  
B2  
B3  
A1  
A2  
A3  
V
EE  
Applications  
Threshold Detectors/  
Discriminators  
Ground/Supply-Sensing  
Applications  
IR Receivers  
Portable/Battery-  
Powered Systems  
MAX985  
IN-  
OUT  
Mobile Communications  
Zero-Crossing Detectors  
Window Comparators  
Level Translators  
N.C.  
V
CC  
Digital Line Receivers  
UCSP  
UCSP is a trademark and µMAX is a registered trademark of  
Maxim Integrated Products, Inc.  
Pin Configurations continued at end of data sheet.  
1
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...12

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