Overview
The LM311N/NOPB is a high-performance voltage comparator designed for a wide range of applications. Originally developed by National Semiconductor and now produced by Texas Instruments, this device is known for its low input current, high voltage gain, and compatibility with various logic families. The LM311N/NOPB operates from a single 5V supply or dual supplies up to ±15V, making it versatile for different system requirements.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Total Supply Voltage | - | - | 36 | V |
| Differential Input Voltage | - | - | ±30 | V |
| Input Offset Voltage | 2.0 | 7.5 | - | mV |
| Input Offset Current | 6.0 | - | 50 | nA |
| Input Bias Current | 100 | - | 250 | nA |
| Voltage Gain | 40 | - | 200 | V/mV |
| Response Time | - | - | 200 | ns |
| Saturation Voltage | 0.75 | - | 1.5 | V |
| Operating Temperature Range | 0 | - | 70 | °C |
Key Features
- Low input current: 150 nA max over temperature.
- High voltage gain: 40 to 200 V/mV.
- Wide supply voltage range: Single 5V to dual ±15V supplies.
- Output compatible with RTL, DTL, MOS, and TTL logic families.
- Ability to drive loads up to 50V at currents as high as 50 mA.
- Offset balancing and strobe capability.
- Output can be wire OR'ed.
Applications
The LM311N/NOPB is suitable for a variety of applications, including:
- Analog-to-digital converters.
- Threshold detectors.
- Window comparators.
- High-speed logic circuits.
- Relay and lamp drivers.
- Industrial control systems.
Q & A
- What is the operating temperature range of the LM311N/NOPB?
The operating temperature range is 0°C to 70°C. - What is the maximum differential input voltage for the LM311N/NOPB?
The maximum differential input voltage is ±30V. - Can the LM311N/NOPB operate on a single supply voltage?
Yes, it can operate on a single 5V supply or dual supplies up to ±15V. - What is the typical response time of the LM311N/NOPB?
The typical response time is 200 ns. - Is the LM311N/NOPB compatible with TTL logic?
Yes, it is compatible with TTL, DTL, MOS, and RTL logic families. - What is the maximum output current of the LM311N/NOPB?
The maximum output current is up to 50 mA. - Does the LM311N/NOPB have strobe capability?
Yes, it has offset balancing and strobe capability. - Can the outputs of the LM311N/NOPB be wire OR'ed?
Yes, the outputs can be wire OR'ed. - What is the input offset voltage of the LM311N/NOPB?
The input offset voltage is typically 7.5 mV. - Is the LM311N/NOPB RoHS compliant?
Yes, the LM311N/NOPB is RoHS compliant.
