HAL 1821/1822/1823

July/2009

PRODUCT INFORMATION

HAL

®

1821/1822/1823

Linear Hall-Effect Sensor Family

The HAL 1821/1822/1823 are new mem-

bers of the linear Hall-effect sensor family

HAL 182x, offering excellent performance/

price trade-off. They are universal magnetic

field sensors with a ratiometric, linear ana-

log output. The members of the sensor fam-

ily can be used for magnetic field measure-

ments,

current

measurements

and

detection of any mechanical movement.

Very accurate angle measurements or dis-

tance measurements can also be carried

out. The sensors are very robust and can

be used in harsh electrical and mechanical

environments.

The output voltage is proportional to the

magnetic flux density through the Hall plate.

The choppered offset compensation leads

to stable magnetic characteristics over sup-

ply voltage and temperature.

The different family members vary by

sensitivity (25 mV/mT, 31.25 mV/mT and

50 mV/mT). The quiescent output voltage

(offset) for all family members is 50% of the

supply voltage.

The sensors are designed for industrial and

automotive applications and operate in the

junction temperature range from –40 °C up

to 170 °C.

They are available in the very small leaded

package TO92UA and in the small SMD

package SOT89B.

Features

analog output

output voltage

tion temperature

voltage

dynamic magnetic fields up to 1 kHz

robust against mechanical stress.

Major Applications

ming characteristics and its high accu-

racy, the HAL 1821/1822/1823 is the

optimal system solution for applications

such as:

– Linear position measurements

– Angle sensors

– Distance measurements

– Current measurements

– Magnetic field measurements

Family Overview

Type

Offset

Sensitivity

1821

50 mV/mT

1822

31.25 mV/mT

1823

25 mV/mT