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LM392

更新时间： 2024-11-20 11:50:15
品牌 Logo 应用领域
德州仪器 - TI 比较器运算放大器
页数 文件大小 规格书
10页 286K
描述
LOW-POWER OPERATIONAL AMPLIFIER AND VOLTAGE COMPARATOR

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LM392 数据手册

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LM392  
LOW-POWER OPERATIONAL AMPLIFIER AND VOLTAGE COMPARATOR  
www.ti.com  
SLOS466–JANUARY 2006  
FEATURES  
•
Wide Power-Supply Voltage Range  
– Single Supply: 3 V to 32 V  
•
Additional Comparator Features  
– Low Output Saturation Voltage:  
250 mV at 4 mA  
– Dual Supply: ±1.5 V to ±16 V  
– Output Voltage Compatible With All Types  
of Logic Systems  
•
Low Supply-Current Drain Essentially  
Independent of Supply Voltage: 600 µA  
•
•
•
•
Low Input Biasing Current: 50 nA  
Low Input Offset Voltage: 2 mV  
Low Input Offset Current: 5 nA  
ADVANTAGES  
•
Eliminates Need for Dual Power Supplies  
•
An Internally Compensated Operational  
Amplifier and a Precision Comparator in the  
Same Package  
Input Common-Mode Voltage Range Includes  
Ground  
•
Allows Sensing at or Near Ground  
•
•
Differential Input Voltage Range Equals  
Power-Supply Voltage  
xxx  
Additional Operational Amplifier Features  
– Internally Frequency Compensated for  
Unity Gain  
– Large DC Voltage Gain: 100 dB  
– Wide Bandwidth (Unity Gain): 1 MHz  
– Large Output Voltage Swing:  
0 V to V+ – 1.5 V  
D, DGK, OR P PACKAGE  
(TOP VIEW)  
OUTPUT A (Comparator)  
INVERTING INPUT A  
NONINVERTING INPUT A  
GND  
1
2
3
4
8
7
6
5
V+  
OUTPUT B (Operational Amplifier)  
A
B
−
−
+
+
INVERTING INPUT B  
NONINVERTING INPUT B  
DESCRIPTION/ORDERING INFORMATION  
The  
LM392  
consists  
of  
two  
independent  
building-block  
circuits.  
One  
is  
a
high-gain  
internally-frequency-compensated operational amplifier, and the other is a precision voltage comparator. Both the  
operational amplifier and the voltage comparator are designed to operate from a single power supply over a wide  
range of voltages. Both circuits have input stages that force the common-mode input down to ground when  
operating from a single power supply. Operation from split power supplies also is possible, and the low  
power-supply current is independent of the magnitude of the supply voltage.  
Applications include transducer amplifiers with pulse shapers, DC gain blocks with level detectors, and VCOs, as  
well as all conventional operational amplifier or voltage-comparator circuits. The LM392 can be operated directly  
from the standard 5-V power-supply voltage used in digital systems, and the output of the comparator interfaces  
directly with either TTL or CMOS logic. In addition, the low-power drain makes the LM392 extremely useful in the  
design of portable equipment.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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