Overview
The LM311DRG4, produced by Texas Instruments, is a high-speed differential comparator that belongs to the LMx11 family. This device is designed to operate over a wide range of power supply voltages, including single 5-V supplies and ±15-V supplies, making it versatile for various applications. The LM311 is known for its low input bias current and high gain stage, enabling fast response times. It is compatible with TTL, DTL, and MOS circuits, and can drive loads such as lamps or relays with voltages up to 50 V at currents of up to 50 mA. The device also features offset balancing and strobe capabilities, and its outputs can be wire-OR connected.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Input Bias Current | 300 nA |
| Maximum Input Offset Current | 70 nA |
| Supply Voltage Range | Single 5-V to ±15-V |
| Output Voltage Range | Up to 50 V |
| Output Current | Up to 50 mA |
| Temperature Range | 0°C to +70°C |
| Package Type | SOIC-8 (for LM311DRG4) |
| Package Dimensions | 4.90 mm × 3.91 mm |
Key Features
- High-speed differential comparator with low input bias current and high gain stage.
- Operates from a wide range of power supply voltages, including single 5-V and ±15-V supplies.
- Output levels compatible with TTL, DTL, and MOS circuits.
- Capable of driving lamps or relays with voltages up to 50 V at currents up to 50 mA.
- Offset balancing and strobe capabilities.
- Outputs can be wire-OR connected.
- Inputs and outputs can be isolated from system ground.
Applications
- Desktop PCs
- Body Control Modules
- White Goods
- Building Automation
- Oscillators
- Peak Detectors
- High-reliability automotive applications
Q & A
- What is the maximum input bias current of the LM311?
The maximum input bias current of the LM311 is 300 nA.
- What is the temperature range for the LM311?
The temperature range for the LM311 is 0°C to +70°C.
- Can the LM311 operate from a single 5-V supply?
- What is the maximum output voltage and current of the LM311?
The LM311 can drive outputs up to 50 V at currents up to 50 mA.
- Is the LM311 compatible with TTL and MOS circuits?
- Does the LM311 have strobe capability?
- Can the inputs and outputs of the LM311 be isolated from system ground?
- What are some common applications of the LM311?
- What package types are available for the LM311?
- How do I adjust the offset in the LM311?
