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TMR1148 Datasheet Unipolar Magnetic Switch Sensor

Manufacturer: MultiDimension

Overview: Datasheet Version 2.0 TMR1148 MicroAmpere High Frequency Response Unipolar Magnetic Switch.

Datasheet Details

Part number TMR1148
Manufacturer MultiDimension
File Size 1.03 MB
Description Unipolar Magnetic Switch Sensor
Datasheet TMR1148-MultiDimension.pdf

General Description

TMR1148 is a unipolar magnetic switch integrated the tunneling 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 TMR1148 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, TMR1148 can provide true continuous detection of magnetic field signals, avoiding sampling errors from the traditional time-sharing power supply mode.

Key Features

  • Tunneling magnetoresistance (TMR) technology.
  • Low power consumption: supply current 1.5 μA.
  • High frequency response: typ. 1 kHz.
  • Unipolar operation.
  • Wide range supply voltages: 1.8 V to 5.5 V.
  • Open-drain output.
  • High sensitivity.
  • Excellent temperature stability.
  • High tolerance to external magnetic field interference.

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