AS5040 View Datasheet(PDF) - Unspecified
Part Name
Description
View to exact match
AS5040 Datasheet PDF : 20 Pages
| |||
AS5040 10-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
Electrical System Specifications
Parameter
Symbol Min Typ Max Unit Note
Resolution
7 bit
8 bit
9 bit
10 bit
Integral non-linearity (optimum)
RES
INLopt
Integral non-linearity
INL
Differential non-linearity
DNL
Transition noise
TN
Hysteresis
Hyst
Power-on reset thresholds
On Voltage; 300mV typ. Hysteresis
Von
Off Voltage; 300mV typ. Hysteresis
Voff
Power-up time
tPwrUp
System propagation delay
absolute output
tdelay
System propagation delay
incremental output
Sampling rate for absolute output
fS
Read-out frequency
CLK
10
2.813
1.406
0.703
0.352
± 0.5
± 1.4
± 0.176
0.12
0.704
bit 0.352 deg
Adjustable resolution only available for incremental output
deg modes;
Least significant bit, minimum step
deg
Maximum error with respect to the best line fit.
Verified at optimum magnet placement @ 25 °C.
Best line fit = (Errmax – Errmin) / 2
deg Over displacement tolerance and full operating temperature
range with 6mm diameter magnet
deg 10bit no missing codes
Deg
RMS
RMS equivalent to 1 sigma
deg 0.352 deg (1 LSB) hysteresis available upon request
1,37 2.2
1.08 1.9
100
9.5 10
2.9
V DC supply voltage 3.3V (VDD3V3)
2.6
V DC supply voltage 3.3V (VDD3V3)
400 * ms *…Until offset compensation finished
65
µs Includes delay of ADC, DSP, absolute interface
200
µs Calculation over two samples
10.5 kHz Internal sampling rate
1
MHz Max. clock frequency to read out serial data
1023 α 10bit
1023
TN
2
DNL
1
0
actual curve
ideal curve
0.35°
512
512
0
0°
INL
180 °
360 °
Figure 18: Integral and differential Non-Linearity (example)
Integral Non-Linearity (INL) is the maximum deviation between actual position and indicated position
Differential Non-Linearity (DNL) is the maximum deviation of the step length from one position to the next
Transition Noise (TN) is the repeatability of an indicated position
Revision 1.1
www.austriamicrosystems.com
α
Page 15 of 20
|
|
Share Link: 