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HAL1820 参数 Datasheet PDF下载

HAL1820图片预览
型号: HAL1820
PDF下载: 下载PDF文件 查看货源
内容描述: 可编程线性霍尔效应传感器系列 [Programmable Linear Hall-Effect Sensor Family]
分类和应用: 传感器
文件页数/大小: 2 页 / 238 K
品牌: MICRONAS [ MICRONAS ]
 浏览型号HAL1820的Datasheet PDF文件第2页  
PRODUCT INFORMATION
HAL 1820
July/2009
HAL
®
1820
Programmable Linear Hall-Effect Sensor Family
The HAL 1820 is a new member of the
Micronas family of programmable linear
Hall sensors.
The HAL 1820 is a universal magnetic field
sensor with a linear analog output based on
the Hall effect. The IC can be used for angle
and linear measurements if combined with
a rotating or moving magnet. The major
characteristics like magnetic field range,
sensitivity, offset (output voltage at zero
magnetic field), and the temperature coeffi-
cients are programmable in a non-volatile
memory.
The HAL 1820 is programmable by modu-
lating the supply voltage of the sensor. No
additional programming pin is needed. The
easy programmability allows a 2-point cali-
bration by adjusting the output signal
directly to the input signal (like mechanical
angle, distance, or current). Individual
adjustment of each sensor during the cus-
tomer’s manufacturing process is possible.
With this calibration procedure, the toler-
ances of the sensor, the magnet, and the
mechanical positioning can be compen-
sated in the final assembly. This offers a
low-cost alternative for all applications that
presently need mechanical adjustment or
laser trimming for calibrating the system.
The sensor is designed to be used in auto-
motive or industrial applications. It operates
in a wide junction temperature range from
–40 °C up to 170 °C. The HAL 1820 is
available in the very small leaded package
TO92UA and in the small SMD package
SOT89B.
V
V
V
V
V
Operates with static magnetic fields and
dynamic magnetic fields up to 1 kHz
Overvoltage and reverse-voltage protec-
tion on V
DD
pin
Magnetic characteristics extremely
robust against mechanical stress.
Short-circuit protected output
Features
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V
V
V
V
V
V
V
V
Linear Hall-effect sensor with ratiometric
analog output
Various programmable magnetic charac-
teristics with non-volatile memory
Digital signal processing
Continuous measurement ranges from
±20
mT to
±160
mT
Temperature characteristics programma-
ble for matching all common magnetic
materials
Programming via supply voltage
Lock function and built-in redundancy for
EEPROM memory
Operates from –40 °C up to 170 °C junc-
tion temperature
Operates from 4.5 V up to 5.5 V supply
voltage
Major Applications
Due to the sensor’s versatile program-
ming characteristics and its high accu-
racy, the HAL 1820 is the optimal system
solution for applications such as:
Contactless potentiometers
Rotary position measurement
Linear movement
Current measurements
Level measurements