8-bit Magnetic Rotary Encoder with Incremental Outputs0 pages

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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-ofrange
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
- Complete system-on-chip, including analog front end
and digital signal processing
- 2-channel quadrature and index outputs provide an
alternative to optical encoders
- User programmable Zero positioning by OTP allows
easy assembly of magnet
- Diagnostic features for operation safety
- Ideal for applications in harsh environments due to
magnetic sensing principle
- Robust system, tolerant to magnet misalignment, air
gap variations, temperature variations and external
magnetic stray fields
- No calibration required
2 Key Features
- Full turn (360°) contactless angular position encoder
- 2 quadrature A/B outputs with 64 pulses per revolution
(ppr), 256 edges per revolution, 1.4° per step
- Index output (one pulse per revolution)
- Accurate user programmable zero position (0.35°)
- Failure detection mode for magnet placement
monitoring and loss of power supply
- Wide temperature range: - 40°C to + 125°C
- 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