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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AS5311 Fiches technique(PDF) 1 Page - ams AG |
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AS5311 Fiches technique(HTML) 1 Page - ams AG |
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1 / 29 page  AS5311 High Resolution Magnetic Linear Encoder www.ams.com/AS5311 Revision 1.12 1 - 29 1 General Description The AS5311 is a contactless high resolution magnetic linear encoder for accurate linear motion and off-axis rotary sensing with a resolution down to <0.5µm. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing on a single chip, packaged in a small 20-pin TSSOP package. A multi-pole magnetic strip or ring with a pole length of 1.0mm is required to sense the rotational or linear motion. The magnetic strip is placed above the IC at a distance of typ. 0.3mm. The absolute measurement provides instant indication of the magnet position within one pole pair with a resolution of 488nm per step (12- bit over 2.0mm). This digital data is available as a serial bit stream and as a PWM signal. Furthermore, an incremental output is available with a resolution of 1.95µm per step. An index pulse is generated once for every pole pair (once per 2.0mm).The travelling speed in incremental mode is up to 650mm/second. An internal voltage regulator allows the AS5311 to operate at either 3.3 V or 5 V supplies. Depending on the application the AS5311 accepts multi-pole strip magnets as well as multi-pole ring magnets, both radial and axial magnetized (see Figure 1 and Figure 3). Figure 1. AS5311 Block Diagram The AS5311 is available in a PB-free TSSOP-20 package and qualified for an ambient temperature range from -40°C to +125°C. 2 Key Features Two 12-bit digital absolute outputs: - Serial interface and - Pulse width modulated (PWM) output Incremental output with Index “Red-Yellow-Green” indicators monitor magnet placement over the chip 3 Applications Micro-Actuator feedback Servo drive feedback Robotics Replacement of optical encoders DSP Linear Hall Array & Frontend Amplifier OTP Register Programming Parameters Absolute Interface (SSI) Incremental Interface Sin Cos Ang Mag MagINCn MagDECn DO PWM CLK A B Index Prog CSn PWM Interface VDD5V VDD3V3 LDO 3.3V AS5311 |
Numéro de pièce similaire - AS5311_07 |
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Description similaire - AS5311_07 |
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