AS5043

Data Sheet – Programming the AS5043

www.austriamicrosystems.com

Revision 1.80

14 – 36

Figure 13: Zero Position Programming (shown for 360° mode)

VDD5V

0°

90°

180°

270°

360°

analog

output

voltage

Mechanical

angle

5V

2V

the output can be electrically rotated to

match a given output voltage to any

mechanical position

0V

12.2 Analog Mode Programming

The analog output can be configured in many ways:

It consists of three major building blocks,

a digital range preselector,

a 10-bit Digital-to-Analog-Converter (DAC)

and an OP-AMP buffer stage.

In the default configuration (all OTP bits = 0), the analog output is set for 360° operation, internal DAC reference

(VDD5V/2), external OPAMP gain, 0-100% ratiometric to VDD5V.

Shown below is a typical example for a 0°-360° range, 0-5V output. The complete application requires only one external

component, a buffer capacitor at VDD3V3 and has only 3 connections VDD, VSS and Vout (connectors 1-3).

Note: the default setting for the OPAMP feedback path is:FB_intEn=0=external. The external resistors Rf and Rg must be

installed. In the programmed state (FB_intEn=1=internal), these resistors do not need to be installed as the feedback

path is internal (Rf_int and Rg_int).