- 您现在的位置：买卖IC网 > PDF目录67359 > AM512BVD (RENISHAW PLC) MAGNETIC FIELD SENSOR-HALL EFFECT, 1-4 V, SQUARE, SURFACE MOUNT PDF资料下载
参数资料
| 型号： | AM512BVD |
| 厂商： | RENISHAW PLC |
| 元件分类： | 磁阻传感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-4 V, SQUARE, SURFACE MOUNT |
| 封装： | ROHS COMPLIANT, LQFP-44 |
| 文件页数： | 5/22页 |
| 文件大小： | 608K |
| 代理商： | AM512BVD |
Data sheet
AM512BD01_04
Issue 4, 14
th January 2009
2009 RLS d.o.o.
A
associate company
13
Recommended magnet
The AM512B can be supplied with a pre-selected magnet to ensure that optimum performance is achieved.
Alternatively, magnets can be sourced from other suppliers but they must conform to the following guidelines
to ensure that performance specifications can be achieved.
To select a suitable magnet it is important to know the properties of the sensors. Hall sensors are only
sensitive to the perpendicular component of the magnetic flux density (B). The AM512B has a Hall sensor
array arranged in a circle with a radius of 2.4 mm. The sensors are located on the surface of the silicon.
Magnets must be cylindrical in shape and diametrically polarized. The main criterion for magnet selection is
the modulation of the perpendicular component of magnetic flux density at the location of the sensors (Bn).
Fig. 20: Distribution of the perpendicular component of B
Fig. 21: Distribution of Bn and its modulation if the magnet is rotated through 360°
Parameter
Symbol
Min.
Typ.
Max.
Unit
Note
Amplitude of Bn modulation
BnAmpl
350
Gauss
*
Offset of Bn modulation
BnOffset
±15
Gauss
**
*
Typical value of BnAmpl will give an analogue signal output with an amplitude of 1.2 V. The amplitude of the signal is
proportional to the BnAmpl. 1 Tesla equals 10,000 Gauss.
** Offset affects the integral nonlinearity if the magnet is not aligned correctly with respect to the chip.
We recommend that a magnet with the following parameters is used to provide the necessary modulation:
Parameter
Typ.
Unit
Note
Diameter
4
mm
Length
4
mm
Material
Sm2Co17
*
Material remanence
10.5
kGauss
Temperature coefficient
-0.03
% / °C
Curie temperature
720
°C
* Rare earth material magnets SmCo are recommended; however, NdFeB magnets can be used but they have
different characteristics
.
相关PDF资料 |
PDF描述 |
|---|---|
| AM512BVC | MAGNETIC FIELD SENSOR-HALL EFFECT, 1-4 V, SQUARE, SURFACE MOUNT |
| AMF-5F-18002200-35-10P | 18000 MHz - 22000 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| AMF-4F-17101840-35-10P | 17100 MHz - 18400 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| AMF-4F-04400510-05-13P | 4400 MHz - 5100 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| AMF-3F-14001450-30-8P | 14000 MHz - 14500 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AM515-66NI | 制造商:WALL 制造商全称:Wall Industries,Inc. 功能描述:Highly suitable for high speed pick and place machine operation |
| AM515-67N | 制造商:WALL 制造商全称:Wall Industries,Inc. 功能描述:This economically priced converter is perfect for low power applications |
| AM51610A53NA | 制造商:Panasonic Electric Works 功能描述:Switch,pin plunger,1.96N,QC/sldr,16A |
| AM51610A53N-A | 功能描述:基本/快动开关 AM5 QV Switch Plunger, QC RoHS:否 制造商:Omron Electronics 触点形式:SPDT 执行器:Lever 电流额定值:5 A 电压额定值 AC:250 V 电压额定值 DC:30 V 功率额定值: 工作力:120 g IP 等级:IP 67 NEMA 额定值: 端接类型:Wire 安装:Panel |
| AM51610A53NAT | 制造商:Panasonic Electric Works 功能描述: |
发布紧急采购，3分钟左右您将得到回复。