as5040 austriamicrosystems, as5040 Datasheet - Page 3

• Manufacturer Part Number: as5040
• Description: 10-bit Programmable Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5040 10-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
Pin 8 (Prog) is also used to program the different
incremental interface modes, the incremental resolution
and the zero position into the OTP (see page 16).
This pin is also used as digital input to shift serial data
through the device in Daisy Chain configuration,
(see page 10).
Pin 11 Chip Select (CSn; active low) selects a device
within a network of AS5040 encoders and initiates serial
3
3.1
Stresses beyond those listed under “Absolute Maximum Ratings“ may cause permanent damage to the device. These are stress ratings
only. Functional operation of the device at these or any other conditions beyond those indicated under “Operating Conditions” is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
3.2
Revision 1.8
Parameter
Ambient temperature
Supply current
External supply voltage at pin VDD5V
Internal regulator output voltage at pin VDD3V3
External supply voltage at pin VDD5V ,VDD3V3
Parameter
DC supply voltage at pin VDD5V
DC supply voltage at pin VDD3V3
Input pin voltage
Input current (latchup immunity)
Electrostatic discharge
Storage temperature
Body temperature (Lead-free
package)
Humidity non-condensing
Electrical Characteristics
Absolute Maximum Ratings (non operating)
Operating Conditions
Symbol
VDD3V3
VDD5V
ESD
T
T
V
I
Body
H
scr
strg
in
Symbol
VDD3V3
VDD3V3
VDD5V
VDD5V
T
I
-100
Min
supp
-0.3
-0.3
-0.3
-0.3
-55
amb
5
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Min
-40
4.5
3.0
3.0
3.0
VDD5V +0.3
Max
100
125
260
± 2
7.5
85
Typ Max
7
5
5.0
3.3
3.3
3.3
16
data transfer. A logic high at CSn puts the data output
pin (DO) to tri-state and terminates serial data transfer.
This pin is also used for alignment mode (page 18) and
programming mode (page 14).
Pin 12 allows a single wire output of the 10-bit absolute
position value. The value is encoded into a pulse width
modulated signal with 1µs pulse width per step (1µs to
1024µs over a full turn). By using an external low pass
filter, the digital PWM signal is converted into an analog
voltage, allowing a direct replacement of potentiometers.
125
5.5
3.6
3.6
3.6
21
Unit
mA
kV
°C
°C
%
V
V
V
Unit
mA
°C
V
V
V
V
Note
Pins MagIncn, MagDecn, CLK, CSn,
Pin Prog
Norm: MIL 883 E method 3015
Min – 67°F ; Max +257°F
t=20 to 40s, Norm: IPC/JEDEC J-Std-020C
Lead finish 100% Sn “matte tin”
Norm: JEDEC 78
Note
-40°F…+257°F
5V operation
3.3V operation
(pins VDD5V and VDD3V3 connected)
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