This part is in production but has been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Date of status change: July 2, 2018. Deadline for receipt of LAST TIME BUY orders: December 1, 2018.
Recommended Substitutions: A1338 Family. For existing customer transition, and for new customers or new applications, contact Allegro Sales.
The A1334 is a 360° angle sensor IC that provides contactless
high-resolution angular position information based on magnetic
Circular Vertical Hall (CVH) technology. It has a system-on-chip
(SoC) architecture that includes: a CVH front end, digital
signal processing, and a digital (SPI) output. The A1334 is
ideal for automotive applications requiring high-speed 0° to
360° angle measurements, such as electronic power steering
(EPS) and throttle systems.
The A1334 supports a Low RPM mode for slower rate applications
and a High RPM mode for high-speed applications.
High RPM mode is for applications that require higher refresh
rates to minimize error due to latency. Low RPM mode is for
applications that require higher resolution operating at lower
As part of its signal processing functions, the A1334 includes
automotive-grade temperature compensation to provide
accurate output over the full operating temperature and voltage
ranges. The A1334 also includes EEPROM technology for
The A1334 is available as a single die in a 14-pin TSSOP, or
dual die in a 24-pin TSSOP. Both packages are lead (Pb) free
with 100% matte-tin leadframe plating.