AS5311

Data Sheet

www.austriamicrosystems.com

Revision 1.01

9 - 23

Parameter

Symbol

Min

Typ

Max

Unit

Note

Integral non-linearity (over

temperature)

± 10

μm

Maximum error with respect to the

best line fit. Ideal magnet

Differential non-linearity

DNL

±0.97

μm

10bit, no missing codes

Transition noise

TN

0.6

μm

RMS

1 sigma

Power-on reset thresholds

On voltage; 300mV typ.

hysteresis

Off voltage; 300mV typ.

hysteresis

1.37

1.08

2.2

1.9

2.9

2.6

V

DC supply voltage 3.3V (VDD3V3)

DC supply voltage 3.3V (VDD3V3)

Power-up time

20

ms

Until status bit OCF = 1

System propagation delay

absolute output :

96

µs

Delay of ADC, DSP and absolute

interface

System propagation delay

incremental output

384

µs

Including interpolation delay at

high speeds

9.90

10.42

10.94

Internal sampling rate for

absolute output

9.38

10.42

11.46

kHz

Hysteresis, incremental

outputs

Hyst

2

LSB

No Hysteresis at absolute serial

outputs

Read-out frequency

CLK

1

MHz

Max. clock frequency to read out

serial data

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.

6.6

Timing Characteristics

6.6.1

Synchronous Serial Interface (SSI)

otherwise noted.

Parameter

Symbol

Min

Typ

Max

Unit

Note

Data output activated

(logic high)

t DO active

100

ns

Time between falling edge of CSn and

data output activated

First data shifted to

output register

tCLK FE

500

ns

Time between falling edge of CSn and

first falling edge of CLK

Start of data output

T CLK / 2

500

ns

Rising edge of CLK shifts out one bit at

a time

Data output valid

t DO valid

413

ns

Time between rising edge of CLK and

data output valid

Data output tristate

t DO

tristate

100

ns

After the last bit DO changes back to

“tristate”

Pulse width of CSn

t CSn

500

ns

CSn = high; To initiate read-out of next

angular position

Read-out frequency

fCLK

>0

1

MHz

Clock frequency to read out serial data