Overview
The LM311DR2G, produced by onsemi, is a single voltage comparator with a strobe capability. This device is part of the LM211/LM311 family, known for its versatility and wide range of operating conditions. It can operate from a single power supply of 5.0 V to 30 V or from ±15 V split supplies, making it compatible with various system configurations. The LM311DR2G allows its inputs to be isolated from system ground, and its output can drive loads referenced to ground, VCC, or VEE, enabling it to interface with DTL, RTL, TTL, or MOS logic circuits. This comparator is also capable of switching voltages up to 50 V at currents up to 50 mA, making it suitable for driving relays, lamps, or solenoids.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Supply Voltage | VCC | 5 to ±15 | V |
| Total Supply Voltage | VCC + |VEE| | 36 | Vdc |
| Differential Input Voltage | Vid | ±30 | V |
| Output to Negative Supply Voltage | VO - VEE | 50 | Vdc |
| Input Offset Voltage | Vio | 0.7 to 7.5 | mV |
| Input Offset Current | Iio | 4 to 70 | nA |
| Input Bias Current | Iib | 60 to 300 | nA |
| Output Current | IO | 50 | mA |
| Operating Temperature Range | Toper | -40 to +105 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Package Type | SOIC-8 |
Key Features
- Operates from a single power supply of 5.0 V to 30 V or from ±15 V split supplies.
- Inputs can be isolated from system ground.
- Output can drive loads referenced to ground, VCC, or VEE.
- Compatible with DTL, RTL, TTL, and MOS logic circuits.
- Can switch voltages up to 50 V at currents up to 50 mA.
- Strobe capability allows output to be disabled regardless of the differential input.
- Offset balancing and strobe capabilities available.
- Pb-free and RoHS compliant.
Applications
- Driving relays, lamps, or solenoids.
- Interface with various logic circuits (DTL, RTL, TTL, MOS).
- Used in systems requiring high-speed comparator functions.
- Applications where input isolation from system ground is necessary.
- General-purpose voltage comparison and switching.
Q & A
- What is the operating voltage range of the LM311DR2G?
The LM311DR2G can operate from a single power supply of 5.0 V to 30 V or from ±15 V split supplies.
- What is the maximum differential input voltage for the LM311DR2G?
The maximum differential input voltage is ±30 V.
- What is the maximum output current of the LM311DR2G?
The maximum output current is 50 mA.
- What is the operating temperature range of the LM311DR2G?
The operating temperature range is -40°C to +105°C.
- Is the LM311DR2G Pb-free and RoHS compliant?
Yes, the LM311DR2G is Pb-free and RoHS compliant.
- What types of logic circuits is the LM311DR2G compatible with?
The LM311DR2G is compatible with DTL, RTL, TTL, and MOS logic circuits.
- Does the LM311DR2G have a strobe capability?
Yes, the LM311DR2G has a strobe capability that allows the output to be disabled regardless of the differential input.
- What is the package type of the LM311DR2G?
The package type is SOIC-8.
- What are some common applications of the LM311DR2G?
Common applications include driving relays, lamps, or solenoids, and interfacing with various logic circuits.
- Can the inputs of the LM311DR2G be isolated from system ground?
Yes, the inputs of the LM311DR2G can be isolated from system ground.
