ATS640JSB datasheet(2/4 Pages) ALLEGRO

Part #	ATS640JSB

Description	TRUE ZERO-SPEED, SELF-CALIBRATING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR FOR TWO-WIRE APPLICATIONS

PDF	4 Pages

Scroll/Zoom	100%

Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

Logo

2 / 4 page

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

ATS640JSB

TRUE ZERO-SPEED,

TWO-WIRE

GEAR-TOOTH SENSOR

FEATURES AND BENEFITS

I Internal Current Regulator for 2-Wire Operation

I True Zero-Speed Operation

I Self Calibrating

I Extremely Stable Duty Cycle with Temperature

I Fully Optimized Differential Digital Gear-Tooth Sensor

I Large Operating Air Gaps

I Air-Gap Independent Switch Points

I High Vibration Immunity

I Single-Chip Sensing IC for High Reliability

I Digital Output Representing Target Profile

I Small Mechanical Size

I Optimized Magnetic Circuit

I <200 µs Typical Power-On Time

I AGC and Reference-Adjust Circuit

I Under-Voltage Lockout

I Wide Operating Voltage Range

I Defined Power-On State

FUNCTIONAL BLOCK DIAGRAM

TYPICAL APPLICATION

NEGATIVE PEAK

ADC - DAC

TRACK & HOLD

POSITIVE PEAK

ADC - DAC

TRACK & HOLD

CURRENT

OUTPUT

SUPPLY

INTERNAL

CONNECTION

Dwg. FH-019

GROUND

REG

POWER-ON

LOGIC

UVLO

MAGNET

–

GAIN

–

100

Ω

Dwg. EH-011-1B

0.1

µF

Vcc

SUPPLY

Icc + Io

1 V

–

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