Allicdata Part #: | 497-1586-2-ND |
Manufacturer Part#: |
LM339ADT |
Price: | $ 0.09 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | STMicroelectronics |
Short Description: | IC COMPARATOR LP QUAD 14-SOIC |
More Detail: | Comparator General Purpose CMOS, DTL, ECL, MOS, Op... |
DataSheet: | LM339ADT Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
2500 +: | $ 0.08004 |
5000 +: | $ 0.07519 |
12500 +: | $ 0.07034 |
25000 +: | $ 0.06452 |
62500 +: | $ 0.06209 |
Specifications
Type: | General Purpose |
Number of Elements: | 4 |
Output Type: | CMOS, DTL, ECL, MOS, Open-Collector, TTL |
Voltage - Supply, Single/Dual (±): | 2 V ~ 32 V, ±1 V ~ 16 V |
Voltage - Input Offset (Max): | 2mV @ 30V |
Current - Input Bias (Max): | 0.1µA @ 5V |
Current - Output (Typ): | 16mA @ 5V |
Current - Quiescent (Max): | 2.5mA |
CMRR, PSRR (Typ): | -- |
Propagation Delay (Max): | -- |
Hysteresis: | -- |
Operating Temperature: | 0°C ~ 70°C |
Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Supplier Device Package: | 14-SO |
Base Part Number: | LM339 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Description
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LM339ADT Application Field and Working PrincipleThe LM339ADT is a quad-comparator, which can be used to solve a large range of analog signal comparison problems. It has so many applications that most engineers cannot imagine designing without it. It is also used for low-power and small size applications. In this article, we will discuss the application field and working principle of the LM339ADT.
Application Field
The LM339ADT is mainly used in analog signal control and comparison applications. It is often used as window comparators, logic circuit design, motion and engine control systems, level detection or detection of voltage or current thresholds, and settings for LDOs and switching power converters. In addition, the LM339ADT can also be used in consumer electronics such as portable computers, TVs, refrigerators and air conditioners. It is also widely used in hi-fi audio amplifiers, LCDs, personal computers, digital oscilloscopes and many other electronic products.The LM339ADT has excellent noise immunity, low power consumption, low output impedance and extremely low voltage offset. Therefore, it is also used in medical devices such as EEG and ECG equipment, robotic sensing, automotive systems, and more.
Working Principle
In theory, the LM339ADT\'s working principle is simple. It is a four-channel device designed to compare two different analog signals. The device has four independent inputs, each with a separate reference voltage.The four channels comprises two sets of two comparators, in a \'long-tailed\' configuration. This configuration enables the LM339ADT to detect small signals and voltages, providing improved accuracy and responsiveness.When a voltage applied to one of the two inputs is greater, then the output of the comparator will be high. Conversely, when the other input\'s voltage is higher, then the output will be low. This is the driving principle behind the LM339ADT.The LM339ADT also features open drain outputs that pull low when the output is high, making it ideal for interfacing with switches and logic circuits. The device is rated to operate over a temperature range of -40 to +85 degrees Celsius and works off an operating voltage of 4.5V to 16.0V.
In conclusion, the LM339ADT is an incredibly useful integrated circuit for analog signal control and comparison. Its low power consumption, low voltage offset, high accuracy, noise immunity, and open drain outputs make it perfect for a wide range of different applications.
The specific data is subject to PDF, and the above content is for reference
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