LMV331SQ3T2G Fast Low-Voltage Analog Comparator (200ns, SC-70-5)

Make incredibly fast and precise logic decisions in your custom circuits with the LMV331SQ3T2G low-voltage analog comparator. Designed to operate seamlessly on a 2.7V to 5.0V supply, this tiny IC serves as the perfect bridge between raw analog signals and the digital inputs of modern microcontrollers like the STM32, ESP32, or Arduino. By comparing two voltages, it instantly outputs a digital high or low signal, making it essential for converting messy analog sensor readings (like LDRs, infrared sensors, or thermistors) into sharp, clean logic triggers.

What sets this comparator apart is its rapid 200ns propagation delay. This fast response time makes it highly effective for time-critical applications in drones and robotics, such as overcurrent fault detection in custom Electronic Speed Controllers (ESCs) or back-EMF zero-crossing detection. Packaged in a microscopic SC-70-5 footprint, it consumes virtually no board space while providing industrial-grade reliability for your custom Power Distribution Boards (PDBs) and compact DIY electronics.

Key Features:

• Fast Response: A brief 200ns propagation delay ensures lightning-fast switching, perfect for real-time fault detection and motor control circuits.

• Low Voltage Operation: Optimized for 2.7V to 5V systems, perfectly matching the logic levels of modern microcontrollers and IoT processors.

• Open-Drain Output: Allows for easy logic level translation (e.g., interfacing a 5V sensor circuit with a 3.3V microcontroller) using a simple pull-up resistor.

• Microscopic Footprint: The ultra-compact SC-70-5 package saves incredibly valuable PCB real estate on densely populated drone electronics.

Specifications:

• Part Number: LMV331SQ3T2G

• IC Type: Single General-Purpose Analog Comparator

• Propagation Delay: 200 ns (Typical)

• Supply Voltage: 2.7V to 5.0V

• Output Type: Open-Drain / Open-Collector

• Package Type: SC-70-5 (SMD/SMT)