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BUY LM311DR2 https://www.utsource.net/itm/p/11721599.html
IC COMPARATOR SGL HI VOLT 8SOIC
Description: The LM311DR2 is an operational amplifier (op-amp) from ON Semiconductor. It is a single-supply, single-channel comparator with an open-drain output. Features: Wide supply voltage range: 3V to 36V Low input offset voltage: ±2mV Low input bias current: ±50nA Low input offset current: ±50nA Low output saturation voltage: 0.2V High open-drain output current: ±20mA High common-mode rejection ratio: 80dB Applications: Level detection Voltage monitoring Signal conditioning Pulse width modulation Motor control Power supply monitoring (For reference only)