Sensors

Aiming at industrial and automotive applications, Diodes has introduced a portfolio of Hall-effect sensors for measuring linear and angular speed and direction. Called AH39xxQ, “they also have a 40V absolute maximum rating, enabling them to safely handle 40V load dumps”, according to the company. “Additionally, -18V of reverse voltage protection guards against incorrect battery connections. For added robustness, the ESD ...

Bosch Quantum Sensing has revealed a photo of its quantum magnetometer prototype (right). “In terms of its measurement accuracy, the Bosch sensor prototype is the smallest currently available – about the size of a cell phone”, according to the company, which was started by Bosch in 2022. “Our goal is to miniaturise quantum sensors to the point where they can ...

Baumer has created an inductive position sensor that is only 6mm think but detects objects a up to 12mm. IF250 sensors have a plastic body with a 25 x 52.4mm footprint, reinforced with metal sleeves at the two mounting holes. Four proximity switch versions are available to give all output combinations of: normally-open or normally-closed, and ‘pnp’ or ‘npn’. Then ...

To shrink size and power consumption for wearables, Rohm has turned to lasers for a short-range proximity detector. Built around a vcsel (vertical cavity surface-emitting laser), RPR-0720 measures only 2 x 1 x 0.55mm including its photodiodes and control IC. The internal IC operates over 1.7 to 3.6V, drawing 16μA (typ for 50μs mode, 35μA max) when it is not ...

IDS has adopted Onsemi’s 20Mpixel AR2020 image sensor for an industrial camera called uEye+ XCP. It has 5,136 x 3,856 pixels, a USB3 interface and a closed housing measuring 29 x 29 x 17mm that includes a mechanical interface for C-mount lenses. “With the rolling shutter sensor AR2020 [is] the technical successor of the Onsemi AR1820,” said IDS. “With 20Mpixel, ...

Toshiba has released the promised expansion of its TCTH0xxxE multi-point over-temperature alarm IC family. Each of these simple ICs, (branded ‘Thermoflagger’) works with one or more PTC (positive temperature coefficient) thermistors to detect over temperature across a PCB, for example, perhaps sensing the individual temperatures of multiple power mosfets . “With safety paramount in many applications, the over-temperature detection ICs ...

Melexis is claiming 1% accuracy over temperature and life for its latest galvanically-isolated Hall effect current sensor. “MLX91230 guarantees this accuracy not only for thermal drift but also lifetime drift and linearity errors,” according to the company. The 8pin SOIC device is AEC-Q100 and ASIL compliant, supporting system integration up to ISO 26262 ASIL D functional safety requirements. Current measurement ...

As the curtain has just risen on IAA Mobility 2023 in Munich on September 5, the leading Chinese provider of CMOS mmWave radar chips, Calterah, brings a most comprehensive portfolio of automotive radar SoCs at Booth A2-F31 of Mess München to the global audience. Figure 1 Visitors Showing Great Interest in Calterah mmWave Radar SoCs (please click on images to ...

CUI Devices is aiming at harsh environments with a waterproof MEMS microphone rated to IPx7 for water ingress. To be known as CMM-3424DT-26165-TR, the surface-mount device measures 4 x 3 x 1 mm and is compatible with reflow soldering. Microphone-wise, the acoustic port is on top and it is omnidirectional, according to CUI, with tightly-controlled sensitivity (-26dB ±1dB) and a ...

Rohm has developed Hall-based magnetic detectors for vehicle use. BD5310xG-CZ types are momentary (dubbed ‘unipolar’): turning on above a fixed south pole magnetic flux density and turning off below the same threshold (with a small amount of hysteresis) BD5410xG-CZ types are latching: turning on above a fixed south pole flux density, then remaining on until an equal north pole flux ...