Overview
The LM393DMR2G, produced by onsemi, is a low offset voltage dual comparator. This device is part of the LM393 series, which includes dual independent precision voltage comparators. These comparators are designed for single or split supply operation and are suitable for a wide range of applications in consumer, automotive, and industrial electronics. The LM393DMR2G is known for its low input offset voltage, low current drain, and compatibility with various logic levels, making it an excellent choice for precision voltage comparison tasks.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Power Supply Voltage | VCC | V | 2.0 | - | 36 or ±18 |
| Input Differential Voltage | VIDR | V | - | - | 36 |
| Input Common Mode Voltage Range | VICR | V | -0.3 | - | VCC - 1.5 |
| Output Voltage | VO | V | - | - | 36 |
| Output Short Circuit-to-Ground Current | ISC | mA | - | - | 20 |
| Input Offset Voltage | VIO | mV | - | ±1.0 | ±5.0 |
| Input Offset Current | IIO | nA | - | ±5.0 | ±50 |
| Input Bias Current | IIB | nA | - | 20 | 250 |
| Operating Ambient Temperature Range | TA | °C | 0 | - | 70 |
| Maximum Operating Junction Temperature | TJ(max) | °C | - | - | 150 |
Key Features
- Wide single-supply range: 2.0 Vdc to 36 Vdc and split-supply range: ±1.0 Vdc to ±18 Vdc.
- Very low current drain independent of supply voltage: 0.4 mA.
- Low input bias current: 25 nA and low input offset current: 5.0 nA.
- Low input offset voltage: 5.0 mV (max).
- Input common mode range to ground level and differential input voltage range equal to power supply voltage.
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
- ESD clamps on the inputs increase the ruggedness of the device without affecting performance.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
- AEC-Q100 qualified and PPAP capable for automotive applications (NCV prefix models).
Applications
The LM393DMR2G is suitable for various applications due to its high gain, wide bandwidth characteristics, and robust design. These include:
- Consumer electronics: For precision voltage comparison tasks in consumer devices.
- Automotive electronics: Qualified for automotive use with the NCV prefix, meeting AEC-Q100 standards.
- Industrial electronics: Used in industrial control systems, sensors, and monitoring equipment.
- Analog circuits: For applications requiring precise voltage comparison, such as in analog-to-digital converters and signal processing circuits.
Q & A
- What is the power supply voltage range for the LM393DMR2G?
The power supply voltage range is from 2.0 Vdc to 36 Vdc for single supply and ±1.0 Vdc to ±18 Vdc for split supply.
- What is the input offset voltage of the LM393DMR2G?
The input offset voltage is as low as ±1.0 mV and up to ±5.0 mV.
- What is the maximum output current of the LM393DMR2G?
The maximum output current is up to 20 mA.
- Is the LM393DMR2G compatible with various logic levels?
Yes, it is compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
- What are the operating temperature ranges for the LM393DMR2G?
The operating ambient temperature range is from 0°C to +70°C).
- Is the LM393DMR2G RoHS compliant?
Yes, it is Pb-free, halogen-free/BFR-free, and RoHS compliant).
- What are the typical applications of the LM393DMR2G?
Typical applications include consumer electronics, automotive electronics, and industrial electronics).
- Does the LM393DMR2G have ESD protection?
Yes, it has ESD clamps on the inputs to increase the ruggedness of the device without affecting performance).
- What is the input bias current of the LM393DMR2G?
The input bias current is typically 20 nA and can be up to 250 nA).
- Is the LM393DMR2G qualified for automotive use?
Yes, models with the NCV prefix are AEC-Q100 qualified and PPAP capable for automotive applications).
