Texas Instruments

LM211QD

LM211QD Description

The LM211QD from Texas Instruments is a general-purpose voltage comparator designed for precision applications requiring fast response times and low power consumption. Housed in an 8-SOIC package, this single-element comparator operates over a wide supply voltage range of 3.5V to 30V (single) or ±1.75V to ±15V (dual), making it versatile for both industrial and consumer electronics. With a quiescent current of just 6mA (max) and an input bias current as low as 0.1µA, the LM211QD ensures efficient performance in battery-powered and energy-sensitive systems. Its low input offset voltage (3mV max) enhances accuracy in signal comparison tasks.

LM211QD Features

• High Output Current (50mA typ): Capable of driving relays, LEDs, and other loads directly.
• Wide Supply Range: Supports single (3.5V–30V) and dual (±1.75V–±15V) configurations for flexible design integration.
• Low Power Consumption: Quiescent current ≤6mA and minimal input bias current (0.1µA) optimize energy efficiency.
• Robust Performance: MSL 1 (Unlimited) moisture sensitivity and RoHS3/REACH compliance ensure reliability in harsh environments.
• Fast Response: Ideal for high-speed switching applications due to its rapid decision-making capability.

LM211QD Applications

The LM211QD excels in precision comparison tasks, including:

• Threshold Detection: Overvoltage/undervoltage monitoring in power supplies.
• Signal Conditioning: Analog-to-digital conversion interfaces in sensor systems.
• Motor Control: Speed or position feedback loops in industrial automation.
• Battery Management: Voltage window comparators for charge/discharge protection.
• Oscillators & Pulse Generators: Timing circuits in communication devices.

Conclusion of LM211QD

The LM211QD stands out for its low-power operation, wide voltage range, and high output drive, making it a superior choice for general-purpose comparator applications. Its robust construction and TI’s proven reliability ensure consistent performance in demanding environments. Whether used in industrial control, automotive systems, or portable electronics, the LM211QD delivers precision and efficiency, backed by Texas Instruments’ quality assurance.