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AS5040
10Bit 360° Programmable Magnetic Rotary Encoder
Data Sheet
1 General Description
The AS5040 is a contactless magnetic rotary encoder
for accurate angular measurement over a full turn of
360°. It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip, is required. The
magnet may be placed above or below the IC.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 0.35° = 1024 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal.
Furthermore, a user-programmable incremental output
is available, making the chip suitable for replacement of
various optical encoders.
An internal voltage regulator allows the AS5040 to
operate at either 3.3 V or 5 V supplies.
Figure 1: Typical Arrangement of AS5040 and Magnet
Benefits
Complete system-on-chip
Flexible system solution provides absolute,
PWM and incremental outputs simultaneously
Ideal for applications in harsh environments
due to contactless position sensing
Tolerant to magnet misalignment and airgap
variations
No temperature compensation necessary
No calibration required
2 Key Features
Contactless high resolution rotational position
encoding over a full turn of 360 degrees
Two digital 10bit absolute outputs:
- Serial interface and
- Pulse width modulated (PWM) output
Three incremental output modes:
- Quadrature A/B and Index output signal
- Step / Direction and Index output signal
- 3-phase commutation for brushless DC
motors
- 10, 9, 8 or 7 bit user programmable
resolution
User programmable zero / index position
Failure detection mode for magnet placement
monitoring and loss of power supply
Rotational speeds up to 30,000 rpm
Push button functionality detects movement
of magnet in Z-axis
Serial read-out of multiple interconnected
AS5040 devices using Daisy Chain mode
Wide temperature range: - 40°C to + 125°C
Fully automotive qualified to AEC-Q100,
grade 1
Small Pb-free package: SSOP 16 (5.3mm x
6.2mm)
3 Applications
Industrial applications:
- Contactless rotary position sensing
- Robotics
- Brushless DC motor commutation
- Power tools
Automotive applications:
- Steering wheel position sensing
- Gas pedal position sensing
- Transmission gearbox encoder
- Headlight position control
- Power seat position indicator
Office equipment: printers, scanners, copiers
Replacement of optical encoders
Front panel rotary switches
Replacement of potentiometers
www.austriamicrosystems.com
Revision 2.10
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相关代理商/技术参数
AS5040_09 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:10Bit 360 Programmable Magnetic Rotary Encoder
AS5040_1 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:10Bit 360 Programmable Magnetic Rotary Encoder
AS5040-AB 功能描述:插座和适配器 AS5040 Adapter Board RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
AS5040-ASSM 功能描述:AS5040-ASSM SSOP16 LF T&RDP 制造商:ams 系列:- 零件状态:在售 编码器类型:磁性 输出类型:PWM 每转脉冲数:512 电压 - 电源:4.5 V ~ 5.5 V 致动器类型:外磁铁，不含 棘爪:无 内置开关:无 安装类型:表面贴装 朝向:- 端子类型:表面安装（SMD，SMT） 旋转寿命（最少次数）:- 标准包装:500
as5040asst 制造商:ams 功能描述:T&R / SSOP 16
AS5040-ASST 功能描述:板机接口霍耳效应/磁性传感器 10Bit Rotary Sensor w/Digital Interface RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23
AS5040ASSU 制造商:AMS 功能描述:IC MAGNETIC ROTARY ENCODER 10BIT SSOP16 制造商:AMS 功能描述:IC, MAGNETIC ROTARY ENCODER 10BIT SSOP16 制造商:AMS 功能描述:IC, MAGNETIC ROTARY ENCODER 10BIT SSOP16; IC Function:Encoder IC; Brief Features:360 Contactless High Resolution Angular Position Encoding, Two 10-bit Absolute Output; Supply Voltage Min:3V; Supply Voltage Max:3.6V; No. of Pins:16 ;RoHS Compliant: Yes
AS5040-ASSU 功能描述:板机接口霍耳效应/磁性传感器 10Bit Rotary Sensor w/Digital Interface RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23