www.austriamicrosystems.com/AS5140H

Revision 1.4

9 - 37

AS5140H

Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s

6.4 Programming Conditions

LSB

7 bit

Adjustable resolution only available for

incremental output modes;

Least significant bit, minimum step

2.813

deg

8 bit

1.406

9 bit

0.703

10 bit

0.352

Integral non-linearity (optimum)

2

Maximum error with respect to the best line

fit.

Verified at optimum magnet placement,

±0.5

deg

Integral non-linearity (optimum)

Maximum error with respect to the best line

fit.

Verified at optimum magnet placement,

±0.9

deg

INL

Integral non-linearity

Over displacement tolerance with 6mm

(see Figure 3)

±1.4

deg

DNL

Differential non-linearity

3

10bit, no missing codes

±0.176

deg

TN

Transition noise

4

RMS equivalent to 1 sigma

0.12

Deg

RMS

Hyst

Hysteresis

Incremental modes only

0.704

deg

Power-on reset thresholds

On voltage; 300mV typ. hysteresis

DC supply voltage 3.3V (VDD3V3)

1.37

2.2

2.9

V

Power-on reset thresholds

Off voltage; 300mV typ. hysteresis

1.08

1.9

2.6

Power-up time

Until offset compensation finished

50

ms

System propagation delay

absolute output

Includes delay of ADC and DSP

48

µs

System propagation delay

incremental output

Calculation over two samples

192

µs

Sampling rate for absolute output

9.90

10.42

10.94

kHz

+150ºC

9.38

10.42

11.46

CLK

Read-out frequency

Max. clock frequency to read out serial data

1

MHz

1. Digital Interface

2. Integral Non-Linearity (INL) is the maximum deviation between actual position and indicated position.

3. Differential Non-Linearity (DNL) is the maximum deviation of the step length from one position to the next.

4. Transition Noise (TN) is the repeatability of an indicated position.

Table 12. Programming Conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Programming voltage

Voltage applied during programming

3.0

3.3

3.6

V

Programming voltage off level

Line must be discharged to this level

0

1

V

Programming current

Current during programming

100

mA

Table 11. Electrical System Specifications (Continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Units