Overview
The LM211DR2G is a single comparator integrated circuit produced by onsemi. It is part of the LM211 and LM311 family, known for their versatility and wide range of operating conditions. The LM211DR2G can operate from a single power supply of 5.0 V to 30 V or from split supplies up to ±15 V, making it suitable for various applications. This device is Pb-free and RoHS compliant, ensuring environmental sustainability.
Key Specifications
| Parameter | Symbol | LM211 | Unit |
|---|---|---|---|
| Total Supply Voltage | VCC + |VEE| | 36 | Vdc |
| Output to Negative Supply Voltage | VO - VEE | 50 | Vdc |
| Ground to Negative Supply Voltage | VEE | 30 | Vdc |
| Input Differential Voltage | VID | ±30 | Vdc |
| Input Voltage | Vin | ±15 | Vdc |
| Operating Ambient Temperature Range | TA | -25 to +85 | °C |
| Operating Junction Temperature | TJ(max) | +150 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Input Offset Voltage | VIO | -0.7 to 3.0 | mV |
| Input Offset Current | IIO | -1.7 to 10 | nA |
| Input Bias Current | IIB | -45 to 100 | nA |
| Voltage Gain | AV | 40 to 200 | V/mV |
| Response Time | 200 | ns |
Key Features
- Operates from a single power supply of 5.0 V to 30 V or from split supplies up to ±15 V.
- Inputs can be isolated from system ground, and the output can drive loads referenced to ground, VCC, or VEE supply.
- Can drive DTL, RTL, TTL, or MOS logic and switch voltages up to 50 V at currents up to 50 mA.
- Strobe capability for controlling the output.
- Pb-free and RoHS compliant.
- Flexible configuration options including split power supply with offset balance and single supply ground-referred load.
Applications
- Relay drivers with strobe capability.
- Zero-crossing detectors driving CMOS logic.
- Driving lamps or solenoids.
- Implementing hysteresis to prevent oscillations in comparator circuits.
- Various analog and digital signal processing applications where a comparator is needed.
Q & A
- What is the operating voltage range of the LM211DR2G? The LM211DR2G can operate from a single power supply of 5.0 V to 30 V or from split supplies up to ±15 V.
- What is the maximum output voltage the LM211DR2G can switch? The LM211DR2G can switch voltages up to 50 V.
- What is the maximum current the LM211DR2G can drive? The LM211DR2G can drive currents up to 50 mA.
- Is the LM211DR2G Pb-free and RoHS compliant? Yes, the LM211DR2G is Pb-free and RoHS compliant.
- What types of logic can the LM211DR2G drive? The LM211DR2G can drive DTL, RTL, TTL, or MOS logic.
- How can the LM211DR2G be used to prevent oscillations in comparator circuits? The LM211DR2G can be used to implement hysteresis to prevent oscillations by applying positive feedback to the offset adjustment pins.
- What is the typical response time of the LM211DR2G? The typical response time of the LM211DR2G is 200 ns for a 100 mV input step with 5.0 mV overdrive.
- What is the operating ambient temperature range of the LM211DR2G? The operating ambient temperature range of the LM211DR2G is -25°C to +85°C.
- How should the strobe pin be driven in the LM211DR2G? The strobe pin should be current driven at 3.0 mA to 5.0 mA.
- What are some common applications of the LM211DR2G? Common applications include relay drivers, zero-crossing detectors, driving lamps or solenoids, and various analog and digital signal processing applications.
