Overview
The LM311DR is a high-performance general-purpose voltage comparator produced by Texas Instruments. It is designed to operate over a wide range of supply voltages, making it versatile for various applications. The LM311DR can function with single-supply voltages from 3.5V to 30V or dual-supply voltages from ±1.75V to ±15V, which allows it to be used in both analog and digital circuits. This comparator is known for its low input bias current and compatibility with TTL and MOS circuits, making it suitable for a broad spectrum of electronic systems.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 3.5V to 30V (single supply), ±1.75V to ±15V (dual supply) | |
| Input Offset Voltage | 7.5 mV (max) at ±15V | |
| Input Bias Current | 0.25 μA (max) at ±15V | |
| Maximum Input Bias Current | 300 nA | |
| Maximum Input Offset Current | 70 nA | |
| Output Voltage Range | Up to 50 V at 50 mA | |
| Temperature Range | 0°C to +70°C | |
| Package Type | 8-SOIC |
Key Features
- Low input bias current and input offset voltage, ensuring high accuracy in voltage comparisons.
- Wide range of supply voltage operation, from single 3.5V to 30V and dual ±1.75V to ±15V supplies.
- Output compatible with TTL, DTL, and MOS circuits.
- Able to drive lamps or relays, switching voltages up to 50 V at currents up to 50 mA.
- Inputs and outputs can be isolated from system ground.
- Offset balancing and strobe capabilities available.
- Outputs can be wire-OR connected.
- Small 8-SOIC package suitable for space-constrained designs.
Applications
- Signal conditioning
- Zero-crossing detection
- Voltage regulation
- Threshold detection
- Waveform generation
- Alarm and trigger circuits
- Desktop PCs
- Body Control Modules
- White Goods
- Building Automation
- Oscillators and peak detectors
Q & A
- What is the supply voltage range for the LM311DR?
The LM311DR can operate with single-supply voltages from 3.5V to 30V or dual-supply voltages from ±1.75V to ±15V.
- What is the maximum input offset voltage of the LM311DR?
The maximum input offset voltage is 7.5 mV at ±15V.
- Can the LM311DR drive external loads?
- What are the temperature ranges for the LM311DR?
The LM311DR has a temperature range of 0°C to +70°C.
- Is the LM311DR compatible with digital circuits?
- What is the package type of the LM311DR?
The LM311DR comes in an 8-SOIC package.
- Can the inputs and outputs of the LM311DR be isolated from system ground?
- Does the LM311DR have strobe capability?
- What are some common applications of the LM311DR?
- Is the LM311DR a reliable component?
