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OHS3151U

Ra ti omet ric Linear Hall Effect Sensor

Unspecified 

Product Bulletin OHS3150U/3151U

August 1999

Ratiometric Linear Hall Effect Sensor

Types OHS3150U, OHS3151U

Features

•A ratiometric linear output capable of

sinking and sourcing current

• 4.5 V to 6.0 V operation

•Responds equally to positive and

negative magnetic field

•Excellent temperature stability to

operate in harsh environments

•Robust package capable of

withstanding harsh environments

Absolute Maximum Ratings

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V

Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65o C to +170o C

Operating Temperature Range, TA (OHS prefix) . . . . . . . . . . . . . . . -40o C to +150o C

Lead Soldering Temperature (1/8 inch [3.2 mm] from case for 5 sec, with soldering

iron) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260o C(1)

Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW

Output Current, IO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA

Magnetic Flux Density, B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited

Description

The ratiometric linear Hall effect sensor each

Functional Block Diagram

contain a monolithic integrated circuit on a

single chip. The circuit incorporates a

quadratic Hall sensing element which

minimizes the effects of mechanical and

thermal stress on the Hall element and

VCC

temperature compensating circuitry to

compensate for the inherent Hall element

sensitivity change over temperature current.

These ratiometric linear Hall effect sensors

provide an output voltage that varies in

Voltage

Reg

proportion to the applied magnetic field. The

voltage output will increase in response to a

south pole (positive) magnetic field applied

perpendicular to the package symbolization

Quad

- Hall +

Sensor

Linear

Amp

OUT

face, and decrease in response to a north

pole (negative) magnetic field.

These 3150U & 3151U ratiometric linear Hall

GND

effect sensors can be used as contactless

sensors for rotary and linear position sensing

and for current sensing. The devices in this

series are similar in performance except for

DSC = Dual to Single Converter

their allowable quiescent voltage output

change over the specified operating

temperature range.

Optek Technology, Inc.

1215 W. Crosby Road

Carrollton, Texas 75006

41

(972)323-2200

Fax (972)323-2396

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