Datasheet > AS5311-ATST

AS5311-ATST

更新时间： 2024-10-01 12:49:07

品牌	Logo	应用领域
艾迈斯 - AMSCO		编码器
页数	文件大小	规格书
29页	418K
描述
High Resolution Magnetic Linear Encoder

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技术参数
数据手册

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AS5311-ATST 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
Reach Compliance Code：	unknown	风险等级：	5.63
Base Number Matches：	1

AS5311-ATST 数据手册

AS5311

High Resolution Magnetic Linear Encoder

The AS5311 is available in a PB-free TSSOP-20 package and

qualified for an ambient temperature range from -40°C to +125°C.

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.

2 Key Features

Two 12-bit digital absolute outputs:

- Serial interface and

- Pulse width modulated (PWM) output

Incremental output with Index

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.

“Red-Yellow-Green” indicators monitor magnet placement over

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.

the chip

3 Applications

Micro-Actuator feedback

Servo drive feedback

Robotics

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.

Replacement of optical encoders

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

VDD3V3

MagINCn

MagDECn

VDD5V

LDO 3.3V

PWM

Interface

Sin

Ang

Absolute

Interface

(SSI)

DSP

Linear Hall

Array

Cos

Mag

CSn

CLK

Frontend

Amplifier

OTP

Incremental

Interface

Programming

Parameters

AS5311

Index

Prog

www.ams.com/AS5311

Revision 1.12

1 - 29

12 3 4 5 6 7...29

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