KMA36 universal magnetic encoder

KMA36 Rev 4

www.meas-spec.com

2012-july

1/16



Contactless Absolute 360° (180°) angle measurement



Incremental mode



Linear mode



Standard I2C Interface (100 kHz)



Programmable resolution up to 13 bit (0.04 degree)



Very low hysteresis



High accuracy mode



User programmable parameters



Low power mode



Sleep and automatic wake-up over I2C



Programmable zero position



Device address hardware configurable



Small Pb-Free package (TSSOP20)



RoHS compliant

DESCRIPTION

The KMA36 is a universal magnetic encoder for precise rotational or linear measurement. These position

sensors feature a system-on-chip technology that combines a magnetoresistive element along with analog

to digital converter and signal processing in a standard small package. By using Anisotropic Magneto Resis-

tive (AMR) technology, the KMA36 is able to determine contactlessly the magnetic angle of an external

magnet over 360°, as well as the incremental position on a magnetic pole strip with 5 mm pole length.

Its

sleep and low power mode as well as automatic wake-up over I2C

– make the KMA36 ideal for many

battery applications. Position data can be transmitted using a PWM or two-wire (SDA, SCL) communication

bus. Using the programmable parameters, the user can have access to a wide range of configuration to

ensure the maximum of freedom and functionalities.

KEY-FEATURES

Resolution

13 Bit / 0.04 degree

Operating power supply range of 3V to 5.5V

3.0

– 5.5V

Operating temperature

- 25 - +85 °C

Average current

10

– 30 mA

Sleep current

1.2 mA

Data Update rate

24

– 720 Hz

I

Up to 100 kBit/s

APPLICATIONS

Industrial environment

Harsh environment

Handling machine

Machine tools

Robotics

Potentiometer

Motor motion control