LM311DR

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LM311DR

IC DIFF COMP STROBE 8-SOIC

  • Fabricant
  • Mfr. Partie #LM311DR
  • Paquet SOIC (D)-8
  • Fiche de données
  • En stock7887

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Spécifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type General Purpose
NumberofElements 1
OutputType MOS, Open-Collector, Open-Emitter, TTL
Voltage-SupplySingle/Dual(±) 3.5V ~ 30V, ±1.75V ~ 15V
Voltage-InputOffset(Max) 7.5mV @ ±15V
Current-InputBias(Max) 0.25µA @ ±15V
Current-Quiescent(Max) 7.5mA
OperatingTemperature 0°C ~ 70°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
MountingType Surface Mount

Vue d'ensemble

Description

The LM311DR is a voltage comparator IC designed for high-speed applications. It features a dual comparator configuration and operates with a wide supply voltage range of 3V to 36V, making it versatile for various electronic circuits. The device offers a fast response time with a propagation delay of approximately 300 ns, making it suitable for applications requiring quick signal processing.
The LM311DR can handle differential input voltages up to 30V and has a low input offset voltage, ensuring accurate comparisons. It provides an open-collector output, allowing for easy interfacing with digital logic levels and enabling wired-AND configurations in multiple comparator setups.
Common applications include zero-crossing detectors, pulse width modulation, and signal level detection. Its robustness and reliability make it popular in industrial, automotive, and consumer electronics. The LM311DR is available in a compact SOIC-8 package, facilitating efficient PCB design and space-saving implementations.

Features

The LM311DR is a dual comparator integrated circuit designed for various applications in signal processing and control systems. Key features include:
1. Dual Comparator: Contains two independent, high-speed voltage comparators.
2. Wide Voltage Range: Operates from a single supply voltage of 3V to 36V or dual supplies of ±1.5V to ±18V.
3. Fast Response Time: Capable of operating with a response time of less than 1μs.
4. Open-Collector Output: Provides flexibility in interfacing with different logic levels; requires a pull-up resistor for proper operation.
5. Low Input Bias Current: Ensures minimal loading of input signals, making it suitable for high-impedance applications.
6. High Noise Immunity: Features a high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR).
7. Temperature Range: Rated for operation between -40°C to +125°C.
These features make the LM311DR ideal for applications such as voltage level detection, pulse width modulation, and general-purpose signal comparison.

Package

The LM311DR is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) form factor. This package type is designed for surface mounting on printed circuit boards (PCBs).

Pinout

The LM311DR is a voltage comparator from Texas Instruments, featuring an 8-pin Dual In-Line Package (DIP) configuration.
Pin Count and Functions:
1. Pin 1: Non-inverting input (V+)
2. Pin 2: Inverting input (V-)
3. Pin 3: Output (Vo)
4. Pin 4: Offset null (for adjusting offset voltage)
5. Pin 5: Not connected (NC)
6. Pin 6: Ground (GND)
7. Pin 7: Supply voltage (Vcc, typically +15V)
8. Pin 8: Not connected (NC)
The LM311DR operates as a comparator, comparing the voltage levels at the inverting and non-inverting inputs and providing a high or low output based on the comparison. It is commonly used in various applications, including signal level detection, waveform shaping, and comparator circuits. The device’s wide operating voltage range and high speed make it versatile for many electronic designs.

Manufacturer

The LM311DR is manufactured by Texas Instruments (TI), a prominent global technology company specializing in semiconductor products. Founded in 1930, Texas Instruments is headquartered in Dallas, Texas, and is known for its development and production of analog and embedded processing chips. The company serves a wide range of industries, including automotive, industrial, consumer electronics, and communications. TI's products are widely used in various applications, including signal conditioning, data conversion, and power management. The LM311DR is a voltage comparator that offers high speed and wide input voltage range, making it suitable for applications such as signal processing and interfacing.

Application

The LM311DR is a high-speed voltage comparator used in various application areas including analog-to-digital converters, zero-crossing detectors, pulse-width modulation, and signal conditioning. It is also utilized in automotive systems, industrial controls, and alarm systems for threshold detection and signal comparison. Its ability to operate with a wide supply voltage range makes it suitable for diverse electronic circuits.

Equivalent

The LM311DR is a voltage comparator. Equivalent products include:
1. LM393 - Dual comparator.
2. TLV3701 - Low-power comparator.
3. LMV7219 - High-speed comparator.
4. MCP6541 - Low-power comparator.
5. MAX9014 - High-speed comparator.
Check datasheets for specific features and performance to ensure compatibility for your application.

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