Overview
The LM2903DR2G is a dual independent precision voltage comparator produced by onsemi. It is part of the LM393 series, known for its versatility and precision in various electronic applications. This device is capable of single or split supply operation, making it suitable for a wide range of consumer, automotive, and industrial electronics. The LM2903DR2G features low input offset voltage, low input bias current, and low supply current, making it an excellent choice for applications requiring high accuracy and reliability.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Input Offset Voltage | VIO | mV | - | - | ±2.0 |
| Input Offset Current | IIO | nA | - | - | ±5.0 |
| Input Bias Current | IIB | nA | - | 25 | 250 |
| Supply Voltage (Single Supply) | VCC | Vdc | 2.0 | - | 36 |
| Supply Voltage (Split Supply) | VCC | Vdc | ±1.0 | - | ±18 |
| Supply Current | ICC | mA | - | 0.4 | - |
| Output Sink Current | ISink | mA | 6.0 | 16 | - |
| Output Saturation Voltage | VOL | mV | - | - | 400 |
| Operating Temperature Range | TA | °C | -40 | - | 105 |
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: 2.0 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.
Applications
The LM2903DR2G is versatile and can be used in a variety of applications, including:
- Consumer electronics: For precision voltage comparison in devices such as audio equipment and home appliances.
- Automotive electronics: For robust and reliable operation in automotive systems, including those requiring site and control changes.
- Industrial electronics: In control systems, monitoring circuits, and other industrial applications where high precision is required.
- Vacuum robots and other automated systems: Where fast response times and low power consumption are critical.
Q & A
- What is the input offset voltage of the LM2903DR2G?
The input offset voltage of the LM2903DR2G is as low as ±2.0 mV.
- What is the supply voltage range for the LM2903DR2G?
The LM2903DR2G can operate with a single supply voltage from 2.0 Vdc to 36 Vdc or a split supply voltage from ±1.0 Vdc to ±18 Vdc.
- What is the typical supply current of the LM2903DR2G?
The typical supply current of the LM2903DR2G is 0.4 mA.
- Is the LM2903DR2G compatible with various logic levels?
- What is the operating temperature range of the LM2903DR2G?
The operating temperature range of the LM2903DR2G is from -40°C to 105°C.
- Does the LM2903DR2G have ESD protection?
- What are some common applications of the LM2903DR2G?
The LM2903DR2G is commonly used in consumer electronics, automotive electronics, industrial electronics, and automated systems like vacuum robots.
- Is the LM2903DR2G available in Pb-free packages?
- What is the typical response time of the LM2903DR2G?
The typical response time of the LM2903DR2G is around 1.3 μs to 1.5 μs.
- Can the LM2903DR2G be used in high-voltage applications?
