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LM293DT
+BOMIC COMPARATOR LP DUAL 8-SOIC
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Nhà sản xuấtSTMicroelectronics
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Ông. Phần #LM293DT
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Bảng dữ liệu LM293DT DataSheet
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Gói SO-8
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Có sẵn4441
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | General Purpose |
| NumberofElements | 2 |
| OutputType | CMOS, DTL, ECL, MOS, Open-Collector, TTL |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 5mV @ 30V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 18mA @ 5V |
| Current-Quiescent(Max) | 2.5mA |
| OperatingTemperature | -40°C ~ 105°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
Tổng quan
Description
Key features include an ability to operate over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive environments. The IC can drive various logic families and has a TTL-compatible output, ensuring compatibility with digital systems.
The LM293DT comes in a surface-mount package (TO-252), which is ideal for compact and space-constrained circuit designs. It's commonly used in applications like voltage level detection, signal conditioning, and zero-crossing detectors. Its robust design and versatile features make it a popular choice for engineers and designers in need of reliable comparator solutions.
Equivalent
Features
1. Dual Comparator: Contains two independent precision voltage comparators.
2. Wide Supply Voltage Range: Operates from a single 2V to 36V supply, or dual ±1V to ±18V supplies.
3. Low Input Offset Voltage: Typically around 1mV, ensuring accuracy and precision.
4. Low Input Bias Current: Typically 25nA, which minimizes the error due to small input currents.
5. Wide Common-Mode Range: Input common mode voltage range includes ground.
6. Low Output Saturation Voltage: Allows for interfacing with logic circuits.
7. TTL and CMOS Compatible Outputs: Can directly interface with most logic families.
8. Low Power Consumption: Designed for energy-efficient applications.
9. Wide Temperature Range: Suitable for industrial applications, from -40°C to +85°C.
10. Available in SOIC-8 Package: Compact design suitable for space-constrained applications.
These features make the LM293DT versatile for a variety of applications such as zero-crossing detectors, level shifting, and simple analog-to-digital conversions.
Pinout
1. Pin 1 (Output A): Output for comparator A.
2. Pin 2 (Inverting Input A): Inverting input for comparator A.
3. Pin 3 (Non-Inverting Input A): Non-inverting input for comparator A.
4. Pin 4 (VCC-): Ground pin.
5. Pin 5 (Non-Inverting Input B): Non-inverting input for comparator B.
6. Pin 6 (Inverting Input B): Inverting input for comparator B.
7. Pin 7 (Output B): Output for comparator B.
8. Pin 8 (VCC+): Positive supply voltage pin.
The LM293DT operates as a voltage comparator, where each comparator compares the voltage levels at its input pins and provides an output based on which input is higher. It is commonly used in applications requiring low-power and high-speed voltage comparison.
Manufacturer
Application
1. Voltage Monitoring: Ensures voltage levels remain within specified ranges in power supply units.
2. Analog-to-Digital Conversion: Assists in converting analog signals to digital by comparing inputs with reference voltages.
3. Zero-Crossing Detectors: Used in AC signal processing to detect when signals cross zero voltage.
4. Signal Processing: Improves signal integrity in communication and sensor systems.
5. Oscillator Circuits: Helps in generating precise timing signals.
Its wide input voltage range and low power consumption make it suitable for battery-operated devices and automotive applications.