10 BIT 360° PROGRAMMABLE MAGNETIC
ROTARY ENCODER
The AS5040 is a contactless magnetic rotary encoder for
accurate angular measurement over a full turn of 360°.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip, is required. The
magnet may be placed above or below the IC.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 0.35° = 1024 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal.
Furthermore, a user-programmable incremental output is
available, making the chip suitable for replacement of
various optical encoders.
An internal voltage regulator allows the AS5040 to
operate at either 3.3 V or 5 V supplies.
Features
- Contactless high resolution rotational position
encoding over a full turn of 360 degrees
- Two digital 10bit absolute outputs:
- Serial interface and
- Pulse width modulated (PWM) output
- Three incremental output modes:
- Quadrature A/B and Index output signal
- Step / Direction and Index output signal
- 3-phase commutation for brushless DC motors
- 10, 9, 8 or 7 bit user programmable resolution
- User programmable zero / index position
- Failure detection mode for magnet placement
monitoring and loss of power supply
- Rotational speeds up to 30,000 rpm
- Push button functionality detects movement of
magnet in Z-axis
- Serial read-out of multiple interconnected AS5040
devices using Daisy Chain mode
- Wide temperature range: - 40°C to + 125°C
- Fully automotive qualified to AEC-Q100, grade 1
- Small Pb-free package: SSOP 16 (5.3mm x 6.2mm)
AS5040 Datasheet
AS5140H
10 Bit 360º Programmable Magnetic Rotary
Encoder For High Ambient Temperatures
accurate angular measurement over a full turn of 360°.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip, is required. The
magnet may be placed above or below the IC.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 0.35° = 1024 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal.
Furthermore, a user-programmable incremental output is
available, making the chip suitable for replacement of
various optical encoders.
An internal voltage regulator allows the AS5040 to
operate at either 3.3 V or 5 V supplies.
Features
- Contactless high resolution rotational position
encoding over a full turn of 360 degrees
- Two digital 10bit absolute outputs:
- Serial interface and
- Pulse width modulated (PWM) output
- Three incremental output modes:
- Quadrature A/B and Index output signal
- Step / Direction and Index output signal
- 3-phase commutation for brushless DC motors
- 10, 9, 8 or 7 bit user programmable resolution
- User programmable zero / index position
- Failure detection mode for magnet placement
monitoring and loss of power supply
- Rotational speeds up to 30,000 rpm
- Push button functionality detects movement of
magnet in Z-axis
- Serial read-out of multiple interconnected AS5040
devices using Daisy Chain mode
- Wide temperature range: - 40°C to + 125°C
- Fully automotive qualified to AEC-Q100, grade 1
- Small Pb-free package: SSOP 16 (5.3mm x 6.2mm)
AS5040 Datasheet
AS5140H
10 Bit 360º Programmable Magnetic Rotary
Encoder For High Ambient Temperatures
The AS5140H is a contactless magnetic rotary encoder
for accurate angular measurement over a full turn of
360º and over an extended ambient temperature range
of -40ºC to +150ºC.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip, is required. The
magnet may be placed above or below the IC.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 0.35º = 1024 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal. Furthermore, a user-programmable
incremental output is available.
An internal voltage regulator allows the AS5140H to
operate at either 3.3 V or 5 V supplies.
The AS5140H is pin-compatible to the AS5040; however
it uses low-voltage OTP programming cells with
additional programming options.
Features
- Contactless high resolution rotational position
encoding over a full turn of 360º
- Two digital 10-bit absolute outputs: Serial interface
and Pulse width modulated (PWM) output
- Three incremental output modes: Quadrature A/B
and Index output signal, Step / Direction and Index
output signal, 3-phase commutation for brushless
DC motors
- User programmable zero / index position
- Failure detection mode for magnet placement monitoring
and loss of power supply
- Rotational speeds up to 10,000 rpm
- Pushbutton functionality detects movement of magnet
in Z-axis
- Serial read-out of multiple interconnected AS5140H
devices using Daisy Chain mode
- Fully automotive qualified to AEC-Q100, grade 0
- Wide ambient temperature range: -40ºC to +150ºC
AS5140H Datasheet
for accurate angular measurement over a full turn of
360º and over an extended ambient temperature range
of -40ºC to +150ºC.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip, is required. The
magnet may be placed above or below the IC.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 0.35º = 1024 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal. Furthermore, a user-programmable
incremental output is available.
An internal voltage regulator allows the AS5140H to
operate at either 3.3 V or 5 V supplies.
The AS5140H is pin-compatible to the AS5040; however
it uses low-voltage OTP programming cells with
additional programming options.
Features
- Contactless high resolution rotational position
encoding over a full turn of 360º
- Two digital 10-bit absolute outputs: Serial interface
and Pulse width modulated (PWM) output
- Three incremental output modes: Quadrature A/B
and Index output signal, Step / Direction and Index
output signal, 3-phase commutation for brushless
DC motors
- User programmable zero / index position
- Failure detection mode for magnet placement monitoring
and loss of power supply
- Rotational speeds up to 10,000 rpm
- Pushbutton functionality detects movement of magnet
in Z-axis
- Serial read-out of multiple interconnected AS5140H
devices using Daisy Chain mode
- Fully automotive qualified to AEC-Q100, grade 0
- Wide ambient temperature range: -40ºC to +150ºC
AS5140H Datasheet
