ROTARY ENCODER. AS5035 Datasheet

AS5035 ENCODER. Datasheet pdf. Equivalent

Part AS5035
Description 8-bit (64 PPR) INCREMENTAL MAGNETIC ROTARY ENCODER
Feature AS5035 8-bit (64 PPR) INCREMENTAL MAGNETIC ROTARY ENCODER FACT SHEET General Description The AS5035.
Manufacture austriamicrosystems AG
Total Page 17 Pages
Datasheet
Download AS5035 Datasheet



AS5035
AS5035
PROGRAMMABLE 64 PPR INCREMENTAL MAGNETIC ROTARY ENCODER
DATA SHEET
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.
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)
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
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
Revision 1.5
www.austriamicrosystems.com
Page 1 of 17



AS5035
AS5035 – 64 PPR INCREMENTAL MAGNETIC ROTARY ENCODER
VDDV3V
VDD5V
LDO 3.3V
Hall Array
&
Frontend
Amplifier
Sin
Cos
DSP
Ang
Mag
Incremental
Decoder
MagINCn
MagDECn
CSn
Channel A
Channel B
Index
AS5035
OTP
Zero
Position
Figure 3: AS5035 Block diagram
OTP_CLK
OTP_DO
PROG
4.1 Pin List & Description
Pin #
Name
Type
SSOP16
1
MagInc
DO_OD
2
MagDec
DO_OD
3A
DO
4B
DO
5 N.C.
test
6 Index
DO
7 VSS
Supply
8 Prog
DI , pd
9
OTP_DO
DO_T
10
OTP_CLK
DI,ST
11 CSn
DI_ST, pu
12 N.C.
test
13 N.C.
test
14 N.C.
test
15
VDD3V3
Supply
16 VDD5V
Supply
AS5035
Mag. Field indicator
Mag. Field indicator
Quadrature channel A
Quadrature channel B
Must be left open
Incremental Index output
Supply Ground
OTP Programming Input. Internal pull-down resistor
(~74kΩ).
Should be connected to VSS if not used
Data Output for Zero Position programming
Clock Input for Zero Position programming; Schmitt-
Trigger input. Should be connected to VSS if not used
Enable outputs A,B,I (see 5.4). Connect to VSS for
normal operation
Must be left open
Must be left open
Must be left open
3V regulator output
5V positive supply input
Table 1: Pin description
DO_OD : digital output, open drain
DO : digital push/pull output
DI : digital input
ST : Schmitt-Trigger input
pu : internal pull-up resistor
pd : internal pull-down resistor
test : pin is used for factory testing, must be left unconnected
4.2 Unused Pins
Pins # 5, 8, 12, 13 and 14 are for factory testing and must be left unconnected
Pins# 8, 9 and 10 are used for OTP Zero Position Programming only. In normal operation, they can be left open or connected to
VSS (pins 8 and 10 only)
Revision 1.5
www.austriamicrosystems.com
Page 2 of 17





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