TMR3109
Description
The TMR3109 is a contactless, high-precision, and high-speed magnetic rotary encoder sensor, which integrated with tunneling magnetoresistance (TMR) sensors and CMOS digital signal processing circuitry.
The TMR3109 senses the single pole-pair magnet rotation above the chip by TMR sensors, collects the rotating magnetic field signal, transmits it to the digital processing unit, and calculates the rotation angle.
The TMR3109 supports 3-wire and 4-wire SPI working modes, allowing the client MCU to read 23-bit absolute position information through the SPI protocol.
Auto-calibration is available for the TMR3109 to pensate non-linearities caused by imperfect installation.
Features and Benefits
- - Tunneling magnetoresistance (TMR) technology
- - Supply voltage: 3.3 V to 5 V
- - Supply current: 10 m A (typical)
- - Supports 0° to 360° absolute angle detection
- - On and off axis measurements
- - Available in SPI interface
- - Angular output delay < 2 μs
- - Angular repeatability < ±0.05°
- -...
