New magnetic sensors offer extremely stable performance

Murata now includes advanced 1D linear and 2D angular sensor devices from Crocus Technology based on TMR technology in its portfolio. With two different temperature and packaging options, the sensor devices present elevated levels of operating stability over a wide temperature range from -40C to +85C, or from 40C to +125C with extended versions.

The CT100 1D linear sensor is distinguished by its wide dynamic range (covering ±50mT) and also displays industry-leading linearity with a linear error of just ±0.5% at ±20mT. This allows improved measurement reproducibility and negates the requirement for compensation circuitry to manage temperature fluctuations. It supports a broad operating voltage range of 1V to 5.5V. Among its main applications are linear measurements, proximity sensing and current sensing.

CT310 is a 2D angular sensor providing an operating magnetic range from 25mT to 90mT, and differential outputs for both sine (SIN) and cosine (COS) axes. It is targeted at angular position measurement and BLDC motor control. This device provides a very low angular error of <0.6 degrees once amplitude normalisation and offset cancellation have both been applied.

Both sensors run off an input voltage from 1V to 5.5V. The CT100 is supplied in either a six-lead SOT23 or a six-lead DFN package. The CT310 is offered in both eight-lead TSSOP and eight-lead DFN package formats. The very minimal number of peripheral components required to accompany these devices saves valuable board space and speeds system development.