TMR1102 Microampere Unipolar Magnetic Switch

The TMR130X series microampere high frequency response magnetic switch sensors. Drawing only 1.5μA, the TMR130X series have response frequency up to 1kHz in a wide operating temperature range of -40 ~ 150 °C.

Click here to view TMR1102 datasheet.

Features and Benefits

• Tunneling Magnetoresistance (TMR) Technology;
• Ultra Low Power Consumption at 1.5μA;
• High Frequency Response > 1kHz;
• Very Low Switching Points for Ultra High Sensitivity;
• Compatible with a Wide Range of Supply Voltages;
• Excellent Thermal Stability;
• High Tolerance to External Magnetic Field Interference.

Applications

• Utility Meters including Water, Gas, and Heat Meters;
• Proximity Switches;
• Position and Speed Sensing;
• Motor and Fan Control;
• Wake-up Switch.

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General Description

TMR1102 is an unipolar magnetic switch integrated the tunnel magnetoresistance (TMR) magnetic sensor and CMOS circuitry, which is able to detect the change of magnetic field and output high and low voltage signals for high accuracy position detection.

Unlike Hall/AMR sensors, TMR sensors with extremely high resistance values allows TMR1102 to achieve the supply current as low as 1.5 μA while operating in the full-time power supply mode, and maintaining the response frequency of the magnetic signal is 1 kHz. Therefore, TMR1102 can provide true continuous detection of magnetic field signals, avoiding sampling errors from the traditional time-sharing power supply mode.