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参数资料
| 型号： | AS5040 DB V2 |
| 厂商： | ams |
| 文件页数： | 10/34页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS5040 |
| 标准包装： | 1 |
| 传感器类型： | 磁性，旋转位置 |
| 传感范围： | 360° |
| 接口： | USB |
| 电源电压： | 5V USB 或 9V |
| 嵌入式： | 是，MCU，8 位 |
| 已供物品： | 板，线缆 |
| 已用 IC / 零件： | AS5040 |
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AS5040
Data Sheet
6 Functional Description
The AS5040 is manufactured in a CMOS standard process and uses a spinning current Hall technology for sensing
the magnetic field distribution across the surface of the chip.
The integrated Hall elements are placed around the center of the device and deliver a voltage representation of the
magnetic field at the surface of the IC.
Through Sigma-Delta Analog / Digital Conversion and Digital Signal-Processing (DSP) algorithms, the AS5040
provides accurate high-resolution absolute angular
position information. For this purpose a Coordinate Rotation Digital Computer (CORDIC) calculates the angle and the
magnitude of the Hall array signals.
The DSP is also used to provide digital information at the outputs M a g I N C n and M a g D E C n that indicate
movements of the used magnet towards or away from the device’s surface.
A small low cost diametrically magnetized (two-pole) standard magnet provides the angular position information (see
Figure 20).
The AS5040 senses the orientation of the magnetic field and calculates a 10-bit binary code. This code can be
accessed via a Synchronous Serial Interface (SSI). In addition, an absolute angular representation is given by a Pulse
Width Modulated signal at pin 12 (PWM).
Besides the absolute angular position information the device simultaneously provides incremental output signals. The
various incremental output modes can be selected by programming the OTP mode register bits (see page 19). As
long as no programming voltage is applied to pin Prog, the new setting may be overwritten at any time and will be
reset to default when power is turned off. To make the setting permanent, the OTP register must be programmed (see
Figure 15). The default setting is a quadrature A/B mode including the Index signal with a pulse width of 1 LSB. The
Index signal is logic high at the user programmable zero position.
The AS5040 is tolerant to magnet misalignment and magnetic stray fields due to differential measurement technique
and Hall sensor conditioning circuitry.
Figure 4: AS5040 Block Diagram
www.austriamicrosystems.com
Revision 2.10
9 - 33
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5040-PB | 功能描述:磁传感器开发工具 AS5040 Progamming Board RoHS:否 制造商:Maxim Integrated 工具用于评估: 接口类型: 工作电压: |
| AS5040-SS_EK_AB | 功能描述:AS5040 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:串行 灵敏度:- 电压 - 电源:9V 嵌入式:否 所含物品:板 使用的 IC/零件:AS5040 标准包装:1 |
| AS5040-SS_EK_DB | 功能描述:AS5040 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:USB 灵敏度:- 电压 - 电源:5V USB 或 9V 嵌入式:是，MCU，8 位 所含物品:板，线缆 使用的 IC/零件:AS5040 标准包装:1 |
| AS5040-SS_EK_PB | 功能描述:AS5000 Programmer, AS5040 - ZIF Socket 制造商:ams 系列:- 零件状态:有效 模块/板类型:ZIF 插口 配套使用产品/相关产品:AS5000 编程器，AS5040 标准包装:1 |
| AS-5041 | 制造商:Bud Industries Inc 功能描述: |
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