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a4231 general features
The a4231 is a proximity sensor integrated circuit to be used with a broad range of inductive single-coiled proximity transducers in proximity detection applications Monolithic IC in bipolar technology User-adjustable sensing range by means of a single external resistor User-adjustable hysteresis (0…15%) 5.5V…35V broad supply voltage range Low-voltage operation possible using stabilised 4.5V…5.5V voltage source Internal voltage regulator to improve immunity against fluctuations of supply voltage Broad operating temperature range: -25°C...