IST8503

SOT23-3 package
VDD = 2.4 – 5.5 V
Operating temperature: –40 °C to 125 °C
Logic Low Output 

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IST8503 is an ultra-low power, omnipolar digital magnetic switch based on Tunneling Magnetoresistance (TMR) technology. It integrates a TMR sensor, power management circuitry, chopper-stabilized amplifier, Schmitt trigger, and CMOS-compatible open-drain output.

Featuring a built-in temperature compensation circuit and optimized for low current operation (as low as 1.5 µA), the IST8503 operates across a wide supply voltage and temperature range. Its high sensitivity and minimal power consumption make it ideal for battery-powered applications that require both performance and efficiency

Features

• Tunneling Magnetoresistance (TMR) technology
• Ultra-low power consumption: 1.5 µA (typ.)
• High magnetic sensitivity: Operate point of 14 G (typ.)
• Omnipolar response: activates with either North or South magnetic pole
• Digital open-drain output
• Operating frequency: 1000 Hz
• Wide supply voltage range: 2.4 V to 5.5 V
• Compact SOT23-3L package
• RoHS, Halogen-Free (HF), and TSCA compliant       

Block Diagram

Applications

• Solid-state switches
• Water meters
• Gas meters
• Industrial smoke detectors