Measuring electrical current in a conductor is critical to many systems. Classic measurement techniques use shunt resistors, current transformers or magnetic field sensors. Hall effect sensors are frequently the choice when measuring DC currents. However the new, improved MLX91209CA from Melexis can be applied in all current sensing situations. This versatile, high speed Linear Hall IC, which features a programmable sensitivity range from 5 to 150mV/mT, is suitable for measuring DC and AC currents up to 200kHz.
The MLX91209CA’s strong thermal and lifetime stability provides design engineers with fully programmable critical characteristics – allowing one single part to meet a wide variety of current sensing applications. Parameters such as sensitivity and offset are stored in an internal EEPROM memory. Calibration is done using Melexis’ well-established, proprietary PTC (Programming Through Connector) protocol. This modulates the supply voltage and does not require any additional pin for programming, enabling the most efficient production flows. A linear analog output permits use of the sensor in applications where a very fast response of 3µs is required.
To learn more please visit: www.melexis.com/91209.
