Overview
The LM293DR is a dual differential comparator from Texas Instruments, designed for general-purpose applications. It is part of the LM293 series, which is known for its reliability and versatility in various industrial and commercial environments. This component is particularly useful in systems that require precise voltage comparisons and fast response times.
Key Specifications
| Parameter | Test Conditions | Typical Value | Unit |
|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V, TA = 25°C | ±0.37 | mV |
| Input Bias Current (IB) | TA = 25°C | -25 | nA |
| Input Offset Current (IOS) | TA = 25°C | ±0.5 | nA |
| High-Level Output Current (IOH) | VOH = 5 V, VID = 1 V, TA = 25°C | 0.1 to 50 | nA |
| Low-Level Output Voltage (VOL) | IOL = 4 mA, VID = –1 V, TA = 25°C | 110 to 400 | mV |
| Low-Level Output Current (IOL) | VOL = 1.5 V, VID = –1 V, TA = 25°C | 6 | mA |
| Supply Current (ICC) | VCC = 5 V, RL = ∞, TA = 25°C | 0.60 to 1 | mA |
| Response Time | RL connected to 5 V through 5.1 kΩ, CL = 15 pF | 1.3 | µs |
Key Features
- Dual Differential Comparators: The LM293DR features two independent differential comparators in a single package, making it suitable for a variety of applications requiring multiple comparisons.
- Wide Operating Voltage Range: The component can operate over a wide voltage range of 5 to 36 volts, making it versatile for different system requirements.
- Low Input Offset Voltage: With a typical input offset voltage of ±0.37 mV, the LM293DR ensures high accuracy in voltage comparisons.
- Fast Response Time: The comparator has a response time of 1.3 µs, which is crucial for applications requiring quick decision-making based on input signals.
- Surface Mount Technology (SMT): The LM293DR is available in SMT packages, facilitating easy integration into modern PCB designs.
Applications
- Industrial Control Systems: The LM293DR is often used in industrial control systems for monitoring and controlling various parameters such as temperature, pressure, and voltage levels.
- Automotive Systems: It is used in automotive applications for functions like battery monitoring, sensor signal processing, and other control circuits.
- Medical Devices: The component is suitable for medical devices that require precise voltage comparisons, such as in patient monitoring systems and diagnostic equipment.
- Consumer Electronics: It can be found in various consumer electronics, including audio equipment, power supplies, and other devices requiring reliable voltage comparison.
Q & A
- What is the operating voltage range of the LM293DR?
The LM293DR operates over a voltage range of 5 to 36 volts.
- How many comparators are included in the LM293DR?
The LM293DR includes two independent differential comparators.
- What is the typical input offset voltage of the LM293DR?
The typical input offset voltage is ±0.37 mV.
- What is the response time of the LM293DR?
The response time is 1.3 µs.
- What type of packaging is available for the LM293DR?
The LM293DR is available in Surface Mount Technology (SMT) packages.
- What are some common applications of the LM293DR?
Common applications include industrial control systems, automotive systems, medical devices, and consumer electronics.
- What is the maximum input bias current for the LM293DR?
The maximum input bias current is -50 nA over the full temperature range.
- How much supply current does the LM293DR typically consume?
The supply current is typically between 0.60 to 1 mA when VCC is 5 V.
- What is the low-level output voltage of the LM293DR?
The low-level output voltage is typically between 110 to 400 mV when IOL is 4 mA.
- Is the LM293DR suitable for high-temperature environments?
Yes, the LM293DR can operate over a wide temperature range, making it suitable for various environmental conditions.
