OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.

Ratiometric Linear Hall-effect Sensor

OHN3150U, OHN3151U, OHS3150U, OHS3151U

OPTEK Technology Inc. —

1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747

FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue A

06/05

Page 1 of 4

Features:

• Ratiometric linear output capable of sinking and sourcing current

• 4.5 V to 6.0 V operation

• Responds equally to positive and negative magnetic fields

• Excellent temperature stability to operate in harsh environments

• Robust package capable of withstanding harsh environments

Description:

Each ratiometric linear Hall-effect sensor contains a monolithic integrated circuit on a single chip. This circuit

incorporates a quadratic Hall sensing element, which minimizes the effects of mechanical and thermal stress on

the Hall element and 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 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 face, and will decrease in response to a north pole (negative)

magnetic field.

These 3150U & 3151U ratiometric linear Hall-effect sensors can be used as a non-contact sensor for rotary and

linear position sensing and for current sensing. The devices in this series are similar in performance, except for

their allowable quiescent voltage output change over the specified operating temperature range.

Product Photo Here

Ordering Information

OHN3150U

-20°C to +85°C

OHS3150U

-40°C to +150°C

OHN3151U

-20°C to +85°C

OHS3151U

-40°C to +150°C

Applications:

RoHS

2

3

1Vcc

Output

Gnd

Vcc

Dual to

Single

Converter

Qual

Hall

Element

Voltage

Regulator