Specifications
| Attribute | Value |
| Package | Tape & Reel (TR) |
| ProductStatus | Active |
| Type | General Purpose |
| NumberofElements | 4 |
| OutputType | CMOS, MOS, Open-Collector, TTL |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 7mV @ 5V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 16mA @ 5V |
| Current-Quiescent(Max) | 2mA |
| OperatingTemperature | 0°C ~ 70°C |
| Package/Case | 14-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
Overview
Description
The LM339DT is a quad comparator integrated circuit designed for low-power applications. It consists of four independent voltage comparators, each capable of operating from a single power supply over a wide range of voltages, making it versatile for various applications. The device is commonly used in analog systems to compare voltage levels and provide outputs indicating which of the input voltage levels is higher.
Key features of the LM339DT include low input bias current, low power consumption, and compatibility with TTL and CMOS logic systems. It operates over a wide supply voltage range, typically from 2V to 36V, which allows it to be used in a variety of power supply configurations. The open-collector output stages of the comparators can drive loads connected to a range of supply voltages.
The LM339DT is typically packaged in a compact surface-mount (SOIC-14) format, making it suitable for modern electronic designs where space is a constraint. Its low cost and reliability make it a popular choice in automotive, industrial, and consumer electronics applications.
Key features of the LM339DT include low input bias current, low power consumption, and compatibility with TTL and CMOS logic systems. It operates over a wide supply voltage range, typically from 2V to 36V, which allows it to be used in a variety of power supply configurations. The open-collector output stages of the comparators can drive loads connected to a range of supply voltages.
The LM339DT is typically packaged in a compact surface-mount (SOIC-14) format, making it suitable for modern electronic designs where space is a constraint. Its low cost and reliability make it a popular choice in automotive, industrial, and consumer electronics applications.
Equivalent
The LM339DT is a quad voltage comparator. Equivalent products include:
1. LM339N
2. LM339D
3. LM239N
4. LM2901N
5. MC3302
6. TL074
These alternatives offer similar functionality and pin configurations, suitable for most applications involving voltage comparison. Always check the datasheets for specific parameters to ensure compatibility with your requirements.
1. LM339N
2. LM339D
3. LM239N
4. LM2901N
5. MC3302
6. TL074
These alternatives offer similar functionality and pin configurations, suitable for most applications involving voltage comparison. Always check the datasheets for specific parameters to ensure compatibility with your requirements.
Features
The LM339DT is a quad voltage comparator integrated circuit that features four independent voltage comparators. Key features include:
1. Wide Supply Voltage Range: Compatible with single or dual power supplies, typically ranging from 2V to 36V for single supply and ±1V to ±18V for dual supplies.
2. Low Input Bias Current: Helps in reducing errors caused by input offset voltage.
3. Low Output Saturation Voltage: Ensures less power loss and better efficiency.
4. TTL and CMOS Compatible Outputs: Facilitates easy interfacing with digital logic circuits.
5. Low Power Consumption: Suitable for battery-operated devices and power-sensitive applications.
6. Reverse Battery Protection: Provides durability and reliability for various applications.
7. Wide Operating Temperature Range: Typically operates within -40°C to 85°C, making it suitable for industrial applications.
8. Open Collector Outputs: Allows for wired-AND connections and can drive loads up to 50mA.
These features make the LM339DT ideal for applications such as zero-crossing detectors, voltage level shifters, and various sensor interfaces.
1. Wide Supply Voltage Range: Compatible with single or dual power supplies, typically ranging from 2V to 36V for single supply and ±1V to ±18V for dual supplies.
2. Low Input Bias Current: Helps in reducing errors caused by input offset voltage.
3. Low Output Saturation Voltage: Ensures less power loss and better efficiency.
4. TTL and CMOS Compatible Outputs: Facilitates easy interfacing with digital logic circuits.
5. Low Power Consumption: Suitable for battery-operated devices and power-sensitive applications.
6. Reverse Battery Protection: Provides durability and reliability for various applications.
7. Wide Operating Temperature Range: Typically operates within -40°C to 85°C, making it suitable for industrial applications.
8. Open Collector Outputs: Allows for wired-AND connections and can drive loads up to 50mA.
These features make the LM339DT ideal for applications such as zero-crossing detectors, voltage level shifters, and various sensor interfaces.
Pinout
The LM339DT is a quad voltage comparator integrated circuit. It consists of four independent voltage comparators, each designed to operate from a single power supply over a wide range of voltages. The LM339DT is typically housed in a 14-pin package. Here is a brief overview of its pin configuration and functions:
1. Pin 1-4: Output for Comparators 1-4, respectively.
2. Pin 5: Ground (GND).
3. Pin 6-7: Inverting Input for Comparators 4 and 3, respectively.
4. Pin 8-9: Non-Inverting Input for Comparators 3 and 4, respectively.
5. Pin 10-11: Non-Inverting Input for Comparators 2 and 1, respectively.
6. Pin 12-13: Inverting Input for Comparators 1 and 2, respectively.
7. Pin 14: Power Supply (VCC).
The LM339DT can compare voltages at its inputs and provide a digital output based on which input is higher. It is widely used in applications requiring signal comparison, such as zero-crossing detectors, voltage limit detectors, and more.
1. Pin 1-4: Output for Comparators 1-4, respectively.
2. Pin 5: Ground (GND).
3. Pin 6-7: Inverting Input for Comparators 4 and 3, respectively.
4. Pin 8-9: Non-Inverting Input for Comparators 3 and 4, respectively.
5. Pin 10-11: Non-Inverting Input for Comparators 2 and 1, respectively.
6. Pin 12-13: Inverting Input for Comparators 1 and 2, respectively.
7. Pin 14: Power Supply (VCC).
The LM339DT can compare voltages at its inputs and provide a digital output based on which input is higher. It is widely used in applications requiring signal comparison, such as zero-crossing detectors, voltage limit detectors, and more.
Manufacturer
The LM339DT is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer. It is a global leader in the development and production of semiconductors used in a wide range of microelectronics applications. The company provides a broad portfolio of semiconductor products, including integrated circuits, discrete and power devices, MEMS, and sensors. STMicroelectronics serves various markets, including automotive, industrial, personal electronics, and communications equipment. It is known for its innovation and technology leadership in the semiconductor industry.
Application
The LM339DT is a quad comparator IC widely used in various electronic applications. Its key application areas include:
1. Voltage Level Detection: It compares input voltages and outputs a digital signal based on the comparison, useful in battery level monitoring and power supply circuits.
2. Zero-Crossing Detectors: Used in AC signal processing to detect when the voltage crosses zero, aiding in synchronization tasks.
3. Oscillators and Timers: Functions as part of relaxation oscillator circuits for generating timing signals.
4. Window Comparators: Employed in circuits that require monitoring of voltage levels within a specific range.
5. Analog Signal Processing: Utilized in peak detection, signal conditioning, and threshold detection applications.
Its low power, wide supply range, and capability to handle multiple inputs make it versatile for industrial and consumer electronics.
1. Voltage Level Detection: It compares input voltages and outputs a digital signal based on the comparison, useful in battery level monitoring and power supply circuits.
2. Zero-Crossing Detectors: Used in AC signal processing to detect when the voltage crosses zero, aiding in synchronization tasks.
3. Oscillators and Timers: Functions as part of relaxation oscillator circuits for generating timing signals.
4. Window Comparators: Employed in circuits that require monitoring of voltage levels within a specific range.
5. Analog Signal Processing: Utilized in peak detection, signal conditioning, and threshold detection applications.
Its low power, wide supply range, and capability to handle multiple inputs make it versatile for industrial and consumer electronics.
Package
The LM339DT is a quad comparator integrated circuit that comes in a surface-mount package, specifically the SOIC-14 (Small Outline Integrated Circuit with 14 pins). This package is designed for use in various applications where space-saving is critical.
