Overview
The LM311P, produced by Texas Instruments, is a single high-speed voltage comparator. This device is part of the LM111, LM211, and LM311 series, designed to operate from a wide range of power-supply voltages, including ±15-V supplies for operational amplifiers and 5-V supplies for logic systems. The LM311P is capable of driving lamps or relays and switching voltages up to 50 V at 50 mA. All inputs and outputs can be isolated from system ground, and the outputs can drive loads referenced to ground, VCC+ or VCC−. The device features offset balancing and strobe capabilities, with outputs that can be wire-OR connected.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | PDIP (P) | |
| Pins | 8 | |
| Operating Temperature Range | 0 to 70 | °C |
| Input Bias Current (Max) | 300 | nA |
| Input Offset Current (Max) | 70 | nA |
| Propagation Delay Time | 165 | ns |
| Output Type | Open Collector | |
| Supply Voltage Range | 3.5 to 30 | V |
| Common-Mode Input Voltage Range | 0.5 to 28 | V |
| Output Voltage (Max) | 50 | V |
| Output Current (Max) | 50 | mA |
Key Features
- Fast Response Time: 165 ns
- Strobe Capability: Allows for external control of the output state
- Offset Balancing: Enables external adjustment of the input offset voltage
- Single Supply Operation: Can operate from a single 5-V supply
- High-Reliability Automotive Applications: Qualified to automotive standards and compliant with MIL-PRF-38535
- Isolated Inputs and Outputs: Inputs and outputs can be isolated from system ground
- Wire-OR Capability: Outputs can be wire-OR connected
Applications
- Desktop PCs: Used in various PC applications
- Body Control Modules: Employed in automotive body control systems
- White Goods: Used in household appliances
- Building Automation: Utilized in building control and automation systems
- Oscillators and Peak Detectors: Suitable for oscillator and peak detector circuits
Q & A
- What is the maximum operating temperature of the LM311P?
The maximum operating temperature of the LM311P is 70°C.
- What is the propagation delay time of the LM311P?
The propagation delay time of the LM311P is 165 ns.
- Can the LM311P operate from a single 5-V supply?
- What is the maximum output voltage and current of the LM311P?
The LM311P can switch voltages up to 50 V at currents up to 50 mA.
- Does the LM311P have strobe capability?
- Is the LM311P suitable for automotive applications?
- Can the inputs and outputs of the LM311P be isolated from system ground?
- What is the common-mode input voltage range of the LM311P?
The common-mode input voltage range of the LM311P is from 0.5 V to 28 V.
- Is the LM311P RoHS compliant?
- What is the package type of the LM311P?
The LM311P is available in an 8-pin PDIP (P) package.
