Description
TMR1202/TMR1208 is a bipolar latching 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 TMR1202/TMR1208
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 up to 5 kHz. Therefore, TMR1202/TMR1208
can provide true continuous detection of magnetic
field signals, avoiding sampling errors from the
traditional time-sharing power supply mode.
TMR1202/TMR1208 allows a wide range of operating
supply voltages from 1.8 V to 5.5 V with excellent
temperature characteristics, and can meet the
requirements of most applications.

Features and benefits
•• Tunneling magnetoresistance (TMR) technology
•• Low power consumption: supply current 1.5 μA
•• High frequency response: up to 5 kHz
•• Bipolar latching operation
••Wide range supply voltages: 1.8 V to 5.5 V
•• CMOS push-pull output
•• High sensitivity
•• Excellent temperature stability
•• High tolerance to external magnetic field interference
•• RoHS & REACH compliant
Applications
•• Utility meters: water, gas, and heat meters
•• Proximity switches
•• Speed sensing
•• Linear and rotation position sensing
••Wake-up switch