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MAX990

更新时间： 2024-11-10 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 比较器
页数 文件大小 规格书
12页 379K
描述
微功耗、低电压、UCSP/SC70封装、满摆幅输入/输出比较器

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MAX990 数据手册

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MAX985/MAX986/MAX989/  
MAX990/MAX993/MAX994  
Micropower, Low-Voltage, UCSP/SC70,  
Rail-to-Rail I/O Comparators  
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 1.25V to 2.ꢀ5V  
dual supplies. They consume only 11µA 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 1.0pA, 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+TG45  
MAX985EXK+T  
6 UCSP  
ABK  
5 SCꢀ0  
Note: All devices are specified over the -40°C to +85°C operating  
temperature range.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
Selector Guide  
COMPARATORS  
PER PACKAGE  
OUTPUT  
STAGE  
T = Tape and reel.  
G45 = Protective die coating.  
PART  
MAX985  
MAX986  
MAX989  
MAX990  
MAX993  
MAX994  
1
1
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.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-1229; Rev 6; 8/12  
1234567...12

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