Overview
The LM293DRE4, produced by Texas Instruments, is a dual differential comparator. This device is part of the LM293 series, known for its wide range of supply voltage and versatility in various applications. The LM293DRE4 operates within a supply voltage range of 2 V to 36 V, making it suitable for a broad spectrum of industrial and commercial uses. It features low power consumption and fast response times, which are critical in many comparator applications.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 2 | 36 | V | ||
| Input Offset Voltage (VIO) | VCC = 5 V to 36 V, VO = 1.4 V | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = 25°C | -3.5 | -25 | nA | |
| Input Offset Current (IOS) | TA = 25°C | -10 | ±0.5 | 10 | nA |
| Common-Mode Input-Voltage Range (VICR) | TA = 25°C | 0 | VCC - 1.5 V | V | |
| Large-Signal Differential-Voltage Amplification (AVD) | VCC = 15 V, VO = 1.4 V to 11.4 V, RL ≥15 kΩ | 50 | 200 | 50 | V/mV |
| Response Time | RL connected to 5 V through 5.1 kΩ, CL = 15 pF | 1.3 | µs | ||
| High-Level Output Current (IOH) | VOH = 5 V, VID = 1 V | 0.1 | 50 | nA | |
| Low-Level Output Voltage (VOL) | IOL = 4 mA, VID = –1 V | 150 | 400 | mV | |
| Low-Level Output Current (IOL) | VOL = 1.5 V, VID = –1 V | 6 | 6 | mA | |
| Supply Current (ICC) | RL = ∞, VCC = 5 V | 0.45 | 1 | 1 | mA |
Key Features
- Wide Supply Voltage Range: Operates from 2 V to 36 V, making it versatile for various applications.
- Low Power Consumption: Low supply current, typically 0.45 mA to 1 mA.
- Fast Response Time: Quick response to input changes, with a response time of 1.3 µs.
- Open-Drain Output: Allows configuration of the output's logic high voltage and enables AND functionality.
- High ESD Rating: Human Body Model (HBM) ESD rating of up to 2 kV.
- Industrial Grade: Suitable for industrial and commercial applications due to its robust specifications.
Applications
- Industrial Automation: Used in control systems, sensors, and monitoring equipment.
- Medical Devices: Employed in medical equipment for signal comparison and threshold detection.
- Aerospace and Defense: Utilized in various military and aerospace applications requiring robust and reliable comparators.
- Consumer Electronics: Found in consumer devices such as audio equipment, power supplies, and other electronic circuits.
- Automotive Systems: Used in automotive control systems, sensors, and safety devices.
Q & A
- What is the supply voltage range of the LM293DRE4?
The LM293DRE4 operates within a supply voltage range of 2 V to 36 V.
- What is the typical response time of the LM293DRE4?
The response time is typically 1.3 µs for a 100-mV input step with a 5-mV overdrive.
- What is the input offset voltage of the LM293DRE4?
The input offset voltage is typically ±0.37 mV, with a maximum of 2.5 mV.
- Can the LM293DRE4 be used in AND logic configurations?
Yes, the open-drain output allows the LM293DRE4 to be used in AND logic configurations.
- What is the ESD rating of the LM293DRE4?
The LM293DRE4 has an ESD rating (HBM) of up to 2 kV.
- What are some common applications of the LM293DRE4?
The LM293DRE4 is used in industrial automation, medical devices, aerospace and defense, consumer electronics, and automotive systems.
- What is the typical supply current of the LM293DRE4?
The typical supply current is 0.45 mA to 1 mA at VCC = 5 V.
- What is the common-mode input-voltage range of the LM293DRE4?
The common-mode input-voltage range is from 0 to VCC - 1.5 V.
- How does the LM293DRE4 handle high-level output current?
The high-level output current is typically 0.1 nA to 50 nA when VOH = 5 V and VID = 1 V.
- What is the low-level output voltage of the LM293DRE4?
The low-level output voltage is typically 150 mV to 400 mV when IOL = 4 mA and VID = –1 V.
