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AS5045
12 Bit Programmable Magnetic Rotary Encoder
Data Sheet
1 General Description
The AS5045 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 0.0879° = 4096 positions per revolution.
This digital data is available as a serial bit stream and
as a PWM signal.
An internal voltage regulator allows the AS5045 to
operate at either 3.3 V or 5 V supplies.
2 Benefits
Complete system-on-chip
Flexible system solution provides absolute and
PWM outputs simultaneously
Ideal for applications in harsh environments due to
contactless position sensing
No calibration required
3 Key Features
Contactless high resolution rotational position
encoding over a full turn of 360 degrees
Two digital 12bit absolute outputs:
- Serial interface and
- Pulse width modulated (PWM) output
User programmable zero position
Failure detection mode for magnet placement
monitoring and loss of power supply
“red-yellow-green” indicators display placement of
magnet in Z-axis
Serial read-out of multiple interconnected AS5045
devices using Daisy Chain mode
Tolerant to magnet misalignment and airgap
variations
Wide temperature range: - 40°C to + 125°C
Small Pb-free package: SSOP 16 (5.3mm x 6.2mm)
4 Applications
Industrial applications:
- Contactless rotary position sensing
- Robotics
Automotive applications:
- Steering wheel position sensing
- Transmission gearbox encoder
- Headlight position control
- Torque sensing
- Valve position sensing
Replacement of high end potentiometers
Figure 1. Typical Arrangement of AS5045 and Magnet
www.austriamicrosystems.com
Revision 1.7
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相关代理商/技术参数
AS5045_V1
制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:12 Bit Programmable Magnetic Rotary Encoder
AS5045-AB
制造商:ams 功能描述:AS5045 Adapter Board
AS5045-ADAPTER
制造商:AMS 功能描述:Adapter Board to Test and Evaluate AS5045 Rotary Encoder
AS5045ASST
制造商:ams 功能描述:T&R / SSOP 16
AS5045-ASST
功能描述:IC ENCODER PROG 12-BIT 16-SSOP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR
AS5045ASSU
制造商:AMS 功能描述:IC MAGNETIC ROTARY ENCODER 12BIT SSOP16 制造商:AMS 功能描述:IC, MAGNETIC ROTARY ENCODER 12BIT SSOP16 制造商:AMS 功能描述:IC, MAGNETIC ROTARY ENCODER 12BIT SSOP16; IC Function:Encoder IC; Brief Features:360 Contactless High Resolution Angular Position Encoding, Two 12-bit Absolute Output; Supply Voltage Min:3V; Supply Voltage Max:3.6V; No. of Pins:16 ;RoHS Compliant: Yes
AS5045-ASSU
功能描述:板机接口霍耳效应/磁性传感器 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
AS5045B
制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:12-Bit Programmable Magnetic Position Sensor