AS5043

Data Sheet – Analog Output

www.austriamicrosystems.com

Revision 1.80

11 – 36

Vref

0°

90°

180°

270°

360°

0%

analog

output

voltage

angle

100%

90%

10%

normal

operating

area

In an error case, the output

voltage is in the grey area

11.1.2 Diagnostic Output Mode

Figure 9: Diagnostic Output Mode

In Diagnostic Output Mode (see Figure 9)

the analog output of the internal DAC ranges

from 10% - 90% Vref

either when the supply is interrupted or

when the magnetic field is in the “red” range,

(see Table 3) the output is switched to 0V

and thus indicates the error condition.

It is possible to enable the analog output

permanently (it will not be switched off even

if the magnetic field is out of range). To

enable this feature an OTP bit in the factory setting must be set. The corresponding bit is FS6. See application note

AS5040-20 (Extended features of OTP programming) for further details. The application note is available for download at

the austriamicrosystems website.

The analog and digital outputs will have the following conditions:

Status

DAC Output Voltage

SSI Digital Output

Normal operation

10% - 90% Vref

*)

#0 - #1023 (0°-360°), MagRngn = 1

Magnetic field out of range

< 10% Vref

DAC output is switched to 0V

#0 - #1023 (0°-360°)

out of range is signaled in status bits:

MagInc=MagDec=LIN=1, MagRngn= 0

Broken positive power supply

< 10% VDD

**)

Broken power supply ground

< 10% VDD

**)

Broken positive power supply

> 90% VDD

**)

Broken power supply ground

> 90% VDD

**)

with pull down resistor at DO (receiving

side), all bits read by the SSI will be “0”-

s, indicating a non-valid output

**) VDD = positive supply voltage at receiving side (3.0 – 5.5V)