ATS344
ATS344 is High-Precision Linear Hall-Effect Sensor manufactured by Allegro MicroSystems.
FEATURES
AND BENEFITS
- Magnetic sensor IC with integrated rare-earth pellet
- Two-wire current mode PWM (pulse-width modulation) output
- Customer-programmable position range selection and offset, bandwidth, output clamps, and temperature pensation
- Sensitivity temperature coeff icient and offset drift preset at Allegro
- Temperature-stable, mechanical stress immune, and low noise device output via proprietary active stress pensation and four-phase chopper stabilization design techniques
- Wide ambient temperature range:
- 40°C to 150°C
- Operates with 3.75 to 9.5 V supply voltage
- Differential linear signal processing
- AEC-Q100 qualified
PACKAGE: 3-pin SIP (suff ix SP)
Not to scale
DESCRIPTION
The ATS344 device is a high-precision, back-biased programmable Hall-effect linear sensor integrated circuit (IC) with a conf igurable current-mode pulse-width-modulated output, for both automotive and non-automotive applications. Integrated within the ATS344 are two Hall-effect sensing elements, signal processing circuitry, and a rare-earth magnetic pellet. The magnetic pellet provides a mon-mode magnetic bias while the outputs of the two sensing elements are subtracted, amplified, and processed to produce an output proportional to the differential magnetic input signal. The differential magnetic input signal is typically produced from influence of a ferromagnetic target. The ATS344 is well-suited for applications that require axial position sensing of a rotating target.
The signal path of the ATS344 provides flexibility through external programming that allows the generation of an accurate, and customized output response from a ferromagnetic target perturbation. The ATS344 provides up to 10 bits of resolution. This part is calibrated at the factory to ensure the most stable response over specified conditions.
The Bi CMOS monolithic integrated circuit incorporates two Hall sensor elements and precision temperature-pensating circuitry to reduce the intrinsic sensitivity...
