Product category:
Sensors and Data Acquisition
News Release from: Allegro MicroSystems Europe | Subject: A1360/1/2 Hall-effect sensor ICs
Edited by the Electronicstalk Editorial
Team on 14 May 2008
Sensor ICs suit high-frequency
applications
Each BiCMOS monolithic circuit integrates a Hall-effect sensor element, temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element.
Allegro MicroSystems Europe has released the A1360/1/2 family of programmable linear Hall-effect sensor ICs, which feature extremely low noise levels and very high bandwidth, making them suited to high-frequency automotive or industrial current sensing applications The A1361/2/3 are ratiometric Hall-effect sensors, which provide a voltage output that is proportional to the applied magnetic field
This article was originally published on Electronicstalk on 30 Aug 2000 at 8.00am (UK)
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Each BiCMOS monolithic circuit integrates a Hall-effect sensor element, temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, a clamped low-impedance output stage and a dynamic offset cancellation technique.
These new devices feature noise levels as low as 8mV peak-to-peak and bandwidth adjustable between 100Hz and 50kHz.
They are also the first products to use Allegro's new 1mm thin, four-lead, single-inline package, which allows for extremely small gaps in the concentrators (C-core style) to improve the signal/noise ratio and sensitivity.
The sensors are extremely stable over temperature variation, with quiescent voltage output and sensitivity maintained to within +/-0.025%/C.
They also exhibit precise recoverability after temperature cycling.
The accuracy of these devices is enhanced through the programmability on the output pin of the device.
A capacitor to ground on the filter pin of the A136x can be used to tune the device bandwidth over the full range from 50kHz to less than 100Hz.
The quiescent output voltage is user-adjustable to 50% (bidirectional) or 10% (unidirectional) of the supply voltage, while output voltage clamps provide short circuit diagnostic capabilities.
Each device has a guaranteed, programmable sensitivity range: 0.7 to 1.4mV/G (A1360), 1.5 to 4.5mV/G (A1361) and 4.5 to 16mV/G (A1362).
Device specifications are guaranteed over the extended temperature range of -40 to +150C.
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