Overview
The LM393 MDC, produced by Texas Instruments, is a dual differential comparator designed for a wide range of applications. This device is known for its versatility and reliability, operating from a single power supply or dual supplies over a broad voltage range of 2 V to 36 V. The LM393 MDC is characterized by its low power consumption, low input bias current, and low input offset voltage, making it suitable for various industrial and consumer electronics uses.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2 | - | 36 | V |
| Input Offset Voltage (VIO) | 2 | 5 | 9 | mV |
| Input Bias Current (IIO) | 5 | 25 | 50 | nA |
| Supply Current (ICC) | - | 0.4 | - | mA |
| Output Saturation Voltage (VOL) | - | - | - | V |
| Operating Temperature Range | 0 | - | 70 | °C |
Key Features
- Wide Supply Voltage Range: Operates from 2 V to 36 V, making it versatile for various applications.
- Low Supply-Current Drain: Typical supply current of 0.4 mA per comparator, independent of supply voltage.
- Low Input Bias Current: Typical input bias current of 25 nA.
- Low Input Offset Voltage: Typical input offset voltage of 2 mV.
- Common-Mode Input Voltage Range: Includes ground and extends to VCC - 1.5 V.
- Differential Input Voltage Range: Equal to the maximum-rated supply voltage (±36 V).
- Output Compatibility: Compatible with TTL, MOS, and CMOS logic.
- Open-Drain Output: Allows for wired-AND relationships and level shifting to higher or lower voltage levels.
Applications
- Chemical or Gas Sensors: Used in sensing applications due to its high accuracy and low power consumption.
- Desktop PCs: Utilized in various PC components for voltage comparison and level shifting.
- Motor Control: Employed in AC induction motor control systems for precise voltage monitoring.
- Weigh Scales: Used in precision weighing applications requiring accurate voltage comparisons.
Q & A
- What is the supply voltage range of the LM393 MDC?
The LM393 MDC operates from a supply voltage range of 2 V to 36 V.
- What is the typical input bias current of the LM393 MDC?
The typical input bias current is 25 nA.
- What is the typical input offset voltage of the LM393 MDC?
The typical input offset voltage is 2 mV.
- Is the LM393 MDC compatible with TTL, MOS, and CMOS logic?
- What is the operating temperature range of the LM393 MDC?
The operating temperature range is from 0°C to 70°C.
- Can the LM393 MDC be used in safety-critical applications?
No, the LM393 MDC is not recommended for use in safety-critical applications without specific authorization and compliance with relevant standards.
- What types of packages are available for the LM393 MDC?
The LM393 MDC is available in various packages including SOIC, VSSOP, PDIP, SO, and TSSOP.
- How does the open-drain output of the LM393 MDC work?
The open-drain output allows for wired-AND relationships and can be used to drive the comparison logic output to a logic voltage level by using an external pull-up resistor.
- What are some common applications of the LM393 MDC?
Common applications include chemical or gas sensors, desktop PCs, motor control systems, and weigh scales.
- Is the LM393 MDC suitable for level shifting applications?
