Position Sensors / Detectors / Transducers
Linear Hall-Effect Sensors are field-programmable.
Press Release Summary:
With modified 4-lead SIP package, one-time field-programmable A1373 and A1374 feature low-noise ratiometric outputs. Chopper stabilization technique used in Hall element provides low initial offset and minimal drift over temperature. Programmable on output pin, user can set gain, quiescent voltage output, and temperature coefficient after finished sensor assembly. Post-assembly programming minimizes effects of manufacturing-induced stresses and offsets.Original Press Release:
Allegro Microsystems, Inc. Introduces Low-Cost, Field-Programmable Linear Hall-Effect Sensors
Worcester, MA, Feb. 1, 2005 - Allegro MicroSystems, Inc. announces the release of the A1373 and A1374, output-pin programmable linear Hall-effect sensors. With a modified four-lead SIP package, lower output noise, and programming on the output pin, these devices will complement Allegro's existing portfolio of standard analog output Hall-effect sensors by offering a low-cost option for field programmability.
The A1373/4 devices are one-time field-programmable linear Hall-effect sensors with low-noise ratiometric outputs, intended to allow the user greater flexibility from design concept to release to production. Very precise over temperature and voltage, the chopper stabilization technique used in the Hall element provides low initial offset and minimal drift over temperature.
The A1373 and A1374 are programmable on the output pin, eliminating potential conflicts during programming that could occur when high-voltage spikes are coupled onto Vcc where some discrete components may reside. As field-programmable devices, the user is allowed to set the gain, quiescent voltage output, and the temperature coefficient after finished sensor assembly. Programming post-assembly minimizes the effects of manufacturing-induced stresses and offsets.
Targeted at the automotive and industrial markets, the A1373 and A1374 are available in a four-lead single inline package developed with wider lead spacing to ease soldering to the leads. The difference between the two devices is bandwidth: the A1374 has slighter higher bandwidth and thus slightly higher noise on the output. The A137x will be pricing at $1.27 for annual volumes of 10,000 units. The expected lead times are 8-10 weeks ARO.
Allegro MicroSystems, Inc. is a supplier of advanced mixed-signal power semiconductors and Hall-effect sensors targeted toward the automotive, communications, computer/office automation, consumer and industrial markets. It maintains a leadership position in the integrated magnetic sensor and integrated motor driver product segments. With over 2,000 employees, Allegro is headquartered in Worcester, MA. Further information about Allegro, including free samples of our products, can be found at www.allegromicro.com.
