Omnipolar Hall-effect switches
6 February 2013
Test & Measurement
Diodes Incorporated has announced four omnipolar Hall-effect switches offering sensitivities to closely match the magnetic field strengths used in proximity and position detection duties in a variety of different product designs.
These micropower devices have also been optimised for battery and low-power operation, typically consuming just 24 μW with a 3 V supply.
Suitable for portable consumer devices as well as industrial products, the high-sensitivity AH1806 and AH1808 are each designed using two Hall-effect plates. With operating thresholds set at ±30 G and ±40 G, the switches enable users to closely control the detection point.
To suit 2,8 V and 3,3 V power rails, the switches’ supply range is specified at 2,5 V to 3,6 V. AH1806 and AH1808 are initially being provided in the SOT553 package, with SC59 (SOT23) versions to follow.
The medium-sensitivity AH1807 and low-sensitivity AH1809 devices provide typical operating points of ±80 G and ±130 G respectively, and are used in applications featuring much stronger field strengths, including smart meters, home appliances and security equipment.
For added flexibility, the latter switches’ supply range is 2,5 V to 5,5 V and operating temperature range is extended, from -40°C to +125°C. There are two package options to choose from: SOT553 and the leaded SIP-3L, with SC59 (SOT23) also following.
Further reading:
B&K Precision’s Series 1820B frequency counter
Comtest
Test & Measurement
These compact and versatile instruments are designed for a wide range of frequency measurement applications, from telecommunications to verification and validation of oscillators.
Read more...
How transition-edge sensors detect microwave radiation
Test & Measurement
The elegant interplay of superconductivity, thermal physics, and precision electronics makes TES technology a cornerstone of modern low-energy photon detection.
Read more...
Compact high precision magnetometer
Future Electronics
Test & Measurement
Bosch Sensortec has introduced the BMM350, a compact 16-bit, 3-axis magnetometer engineered to deliver high accuracy, low noise, and exceptional energy efficiency in space constrained designs.
Read more...
Ultra compact NTC thermistors
RS South Africa
Test & Measurement
Murata Manufacturing Co. has expanded its compact NCU03 series of NTC thermistors with two ultra-small 0603M devices tailored for consumer and automotive designs.
Read more...
Omniflex uses LoRaWAN to track water usage
Omniflex Remote Monitoring Specialists
Test & Measurement
Omniflex has helped New South Wales Ports improve its ability to track water usage by installing remote monitoring to 38 water meters at its Port Kembla site, sending the data to the NSWPorts web portal.
Read more...
Surviving the extremes: Understanding shock and vibration in MEMS sensors
Altron Arrow
Editor's Choice Test & Measurement
By considering factors such as mechanical headroom, damping, and system-level robustness, designers can ensure that the chosen sensor not only survives, but performs reliably over time.
Read more...
Advanced pressure monitoring sensor
EBV Electrolink
Test & Measurement
The Infineon KP497 is an advanced, highly integrated digital pressure sensor designed for demanding automotive and industrial applications, with a particular focus on battery management systems.
Read more...
Slimline 150 W bench PSU
Vepac Electronics
Test & Measurement
The PeakTech P 6222 is the company’s new, slim laboratory power supply that offers precisely adjustable output values of 30 V and 5 A with a continuous power output of 150W.
Read more...
Redefining edge intelligence in RF analysis
Vepac Electronics
Test & Measurement
The HAROGIC PXR Series bridges the gap between benchtop-grade RF performance and high-performance edge computing.
Read more...
Otto Wireless appointed as sole agent for Dragino Technology
Otto Wireless Solutions
Test & Measurement
Dragino is a globally recognised leader in LoRaWAN and Internet of Things products and solutions, and is known for delivering reliable, cost-effective hardware.
Read more...
printer friendly version