ASEK-ATS343-ATS344-KIT-T-DK datasheet, PDF

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ASEK-ATS343-ATS344-KIT-T-DK: DescriptionEVAL BOARD ASEK-ATS343-ATS344; CategoryDevelopment board/suite/development tools; File Size959KB，36 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/; Environmental Compliance

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ASEK-ATS343-ATS344-KIT-T-DK Overview

EVAL BOARD ASEK-ATS343-ATS344

ASEK-ATS343-ATS344-KIT-T-DK Parametric

Parameter Name	Attribute value
sensor type	-
Sensing range	-
interface	-
Sensitivity	-
Voltage - Power	-
Embedded	-
What's included	plate
IC/parts used	-

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ATS344

High-Precision Linear Hall-Effect Sensor IC with Two-Wire

Current-Mode PWM Output and an Integrated Rare-Earth Pellet Package

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

compensation

•

Sensitivity temperature coeff icient and offset drift preset

at Allegro

• Temperature-stable, mechanical stress immune, and

low noise device output via proprietary active stress

compensation 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

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 common-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 BiCMOS monolithic integrated circuit incorporates two

Hall sensor elements and precision temperature-compensating

circuitry to reduce the intrinsic sensitivity and offset drift or

mismatch of the differential Hall elements. The amplif ication

and analog-to-digital conversion path is designed to ensure

optimal channel matching through the use of proprietary

dynamic offset cancellation circuits, and advanced active stress

compensation to reduce lifetime drift.

Continued on next page...

PACKAGE:

3-pin SIP (suff ix SP)

Not to scale

Analog Subsystem

...001 1001 1...

Digital Signal Processing

Output Stage

Magnetic

Signal

12-bit

Bandwidth

and

Temperature

Compensation

Sensitivity

and

Fine Offset

Adjustment

Output

Polarity

ICC

Hall

Elements

Analog

Ampliﬁcation

Stage

A to D

Conversion

Clamps

PWM Current

Modulation

Figure 1: ATS344 Signal Processing Path.

Functions with programmable parameters indicated by double-headed arrows.

ATS344S-DS, Rev. 1

MCO-0000355

August 8, 2018

ASEK-ATS343-ATS344-KIT-T-DK Related Products

	ASEK-ATS343-ATS344-KIT-T-DK	ASEK-ATS343-ATS344-SUBKIT-DK
Description	EVAL BOARD ASEK-ATS343-ATS344	EVAL BOARD ASEK-ATS343-ATS344
What's included	plate	plate

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