Allegro’s diverse selection of speed sensor ICs provide optimized solutions for many non-automotive applications where speed or speed and direction information are needed. These sensor ICs can handle designs using various target geometries, materials, and sensing orientations. Allegro’s portfolio of speed sensor ICs contains solutions able to address requirements for applications needing both high and low frequency operation, detection of rotational direction, and small signals operation.
Allegro’s solutions offer over two decades of specific IC design advancements. These sensor ICs also incorporate lessons learned through our close work in automotive applications where many unique operational issues have been discovered and resolved through algorithm advancements. Allegro’s industry leading algorithms provide optimized performance for both two-wire, current source; and three-wire, open drain output protocols.
|Part Number||Supply Voltage (V)||Output Type||Power-On State||Specified Air Gap / Operating Signal Range||Key Spec||Min. Speed||Packages|
|A1425||4 to 26.5||3-Wire||High (output off)||50 to 1250 G||Repeatability||20 Hz||K|
|A1468||4 to 26.5||3-Wire||High (output off)||20 to 1200 G||Small Signal, Robustness to Magnetic Signal Anomalies||Zero Speed||K|
|A1469||4 to 26.5||3-Wire||High (output off)||20 G to 1200 G||Small Signal, Robustness to Magnetic Signal Anomalies, Robust EMC||Zero Speed||K|
|A1688||4 to 24||2-Wire||High or Low
|20 to 1200 G||Total Pitch Deviation||Zero Speed||UB|
||4 to 26.5||3-Wire
||High (output off)
||20 to 1200 G
||Small Signal, Robustness to Magnetic Signal Anomalies
|ATS601||3.3 to 24||3-Wire||High (off)||0.5 to 2.5 mm||Timing Accuracy, Orientation Independent||Zero Speed||SG|
|ATS605||4 to 24||3-Wire (×2)||High (output off)||0.5 to 2.75 mm||High Frequency, Dual Output Direction Detection||Zero Speed||SG|
|ATS667||4 to 24||3-Wire||High (output off)||0.5 to 3.1 mm||Duty Cycle||Zero Speed||SG|
|Temperature range code: L = -40°C to 150°C|