FYI: Magnetic encoder ICs

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FYI: Magnetic encoder ICs

Post by Jan » Sat Apr 26, 2008 2:07 pm

I just found some cool ICs and wanted to let you know:

AS5046 by AMS ... AS5046.htm

Basing on Hall sensors and a custom CORDIC processing engine they can sense the rotational position of a magnet with up to 12 bit resolution. The device comes in TSSOP-16 package and seems to be pretty straight-forward to use. Two different serial interfaces are offered (SPI and I2C), there are analog and PWM outputs as well.

AFAIR the position update rate is > 100 Hz in high res mode.

The manufacturer is offering free samples.


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Post by ginge » Sun Apr 27, 2008 9:55 pm

Hi jan,

Pretty impressive device. I love how the manufacturer goes out of the way to provide sdk and good examples, as well as all of the calculations you need to mount the magnet.

Good find. I will try to get some samples to play with.



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Post by wurpfel » Mon Apr 28, 2008 9:32 am

Hi Jan

I use some AMS-devices and are very impressed by the performance and easy-of-use :D

tests on those devices were done:
brushless-encoder out of 10bit 5043 for my powerbike and RCmodels, VSRengines, up to 30k rpm!
5046 for real 12bit position of servos and joysticks
12bit ADsampling up to 50ksps, made a LA/USBoszi out of this device
LDO for the wireless-device, superlow ripple without expencive filter
digital potentiometers controlled by I2C for sensorPCB/OPAMPs
linear amplification devices for analog-sensors
fast comparators for sensorlessBL-esc

now I placed my first "big" order to put those devices in commercial products.
not to old to play with scrap

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Post by barryfzr » Mon Jan 04, 2010 6:27 pm

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