Revision 1.5

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1

General Description

The AS5035 is a magnetic incremental encoder with 64

quadrature pulses per revolution (8-bit resolution) and

index output.

Two diagnostic outputs are provided to indicate an out-of-

range condition of the magnetic field as well as movement

of the magnet in Z-axis. In addition a specific combination

of output states indicate a loss of power supply.

The AS5035 is available in a small 16pin SSOP package. It

can be operated at either 3.3V or 5V supplies.

Figure 1: Typical arrangement of AS5035 and magnet

1.1

Benefits

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Complete system-on-chip, including analog front end

and digital signal processing

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2-channel quadrature and index outputs provide an

alternative to optical encoders

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User programmable Zero positioning by OTP allows

easy assembly of magnet

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Diagnostic features for operation safety

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Ideal for applications in harsh environments due to

magnetic sensing principle

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Robust system, tolerant to magnet misalignment, air

gap variations, temperature variations and external

magnetic stray fields

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No calibration required

2

Key Features

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Full turn (360°) contactless angular position encoder

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2 quadrature A/B outputs with 64 pulses per revolution

(ppr), 256 edges per revolution, 1.4° per step

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Index output (one pulse per revolution)

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Accurate user programmable zero position (0.35°)

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Failure detection mode for magnet placement

monitoring and loss of power supply

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Wide temperature range: - 40°C to + 125°C

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Small lead-free package: SSOP 16 (5.3mm x 6.2mm)

3

Applications

Industrial applications:

- Robotics

- Replacement of optical encoders

- Flow meters

- Man-machine interface

Automotive applications:

- Power seat position sensing

- Power mirror position sensing

4

Pin Configuration

Figure 2: AS5035 Pin configuration SSOP16

AS5035

PROGRAMMABLE 64 PPR INCREMENTAL MAGNETIC ROTARY ENCODER

DATA SHEET