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LM293ADT
+BOMIC COMPARATOR 2 GEN PUR 8SOIC
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ManufacturerSTMicroelectronics
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Mfr. Part #LM293ADT
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Datasheet LM293ADT DataSheet
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In Stock5084
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Specifications
| Attribute | Value |
| PartStatus | Active |
| BaseProductNumber | LM293 |
| Type | Standard (General Purpose) |
| NumberofElements | 2 |
| OutputType | Open-Collector, Open-Drain, Rail-to-Rail |
| Voltage-Supply,Single/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 2mV @ 30V |
| Current-InputBias(Max) | 0.1µA @ 5V |
| Current-Output(Typ) | 18mA @ 5V |
| Current-Quiescent(Max) | 2.5mA |
| OperatingTemperature | -40°C ~ 105°C |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 8-SOIC |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Overview
Description
This IC offers low power consumption and features a typical response time of milliseconds, which is sufficient for many general-purpose applications. It operates with a single or dual power supply, providing flexibility in circuit design. The device's common-mode input voltage range includes ground, even when operated with a single power supply.
The LM293ADT is housed in a compact package, facilitating its integration into space-constrained designs. Its dual comparator configuration allows it to perform two independent comparison operations, enhancing functionality while minimizing component count. Typical applications include threshold detectors, zero-crossing detectors, and signal conditioning. The device's robustness and accuracy make it a popular choice for designers needing reliable analog signal processing solutions.
Equivalent
Features
1. Dual Comparator: It contains two independent voltage comparators.
2. Wide Supply Voltage Range: Operates from 2V to 36V for single supply or ±1V to ±18V for dual supplies.
3. Low Supply Current: Typically around 0.4 mA per comparator, ensuring energy efficiency.
4. Low Input Offset Voltage: Typically around 2 mV, which enhances accuracy.
5. Wide Input Common-Mode Voltage Range: Allows operation with inputs up to the supply voltage.
6. Low Output Saturation Voltage: Ensures efficient switching by minimizing power loss.
7. Wide Temperature Range: Suitable for automotive and industrial applications, typically from -40°C to +125°C.
8. Compatibility: Pin-compatible with the LM339 family, making it easy to use in existing designs.
9. Package Options: Available in various packages like SO-8, ensuring flexibility in design layout.
These features make the LM293ADT suitable for applications requiring precise voltage comparison, such as zero-crossing detectors, voltage level shifters, and oscillator circuits.
Pinout
1. Pin 1 (Output 1): Output of the first comparator.
2. Pin 2 (Inverting Input 1, -IN1): Inverting input of the first comparator.
3. Pin 3 (Non-Inverting Input 1, +IN1): Non-inverting input of the first comparator.
4. Pin 4 (Vcc-): Ground or negative supply voltage.
5. Pin 5 (Non-Inverting Input 2, +IN2): Non-inverting input of the second comparator.
6. Pin 6 (Inverting Input 2, -IN2): Inverting input of the second comparator.
7. Pin 7 (Output 2): Output of the second comparator.
8. Pin 8 (Vcc+): Positive supply voltage.
The LM293ADT operates over a wide range of supply voltages and is used for comparing two voltage levels, providing a digital output indicating which voltage is higher.
Manufacturer
Application
1. Voltage Level Detection: Monitoring voltage levels in power supplies and battery management systems.
2. Signal Processing: Comparing analog signals in data acquisition systems.
3. Oscillator Circuits: Generating square waves in waveform generators.
4. Zero-Crossing Detectors: Identifying zero points in AC signals for phase-locked loops.
5. Window Comparators: Determining if a signal falls within a specific range.
6. Over-Current Protection: Part of protection circuits in power electronics.
7. Temperature Control: Used in thermostatic control circuits.
Its versatility and reliability make it suitable for use in consumer electronics, automotive systems, and industrial automation.