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Compass Module - HMC1051Z (single axis)

Description: The Honeywell HMC105Z is a Wheatstone bridge devices to measure magnetic fields. With power supply applied to a bridge, the sensor converts any incident magnetic field in the sensitive axis direction to a differential voltage output. In addition to the bridge circuit, the sensor has two on-chip magnetically coupled straps; the offset strap and the set/reset strap. These straps are Honeywell patented features for incident field adjustment and magnetic domain alignment; and eliminate the need for external coils positioned around the sensors.

Documents:

Datasheet

Pricing

images are CC BY-NC-SA 3.0

ASCII version

Comments 3 comments

HungryMaggot | about 5 months ago 3

this should have been categorized in Sensors\Magneto section
baum | about 5 months ago 2

Wow… sells for US$17 on digikey…. This is like 70% off!!!! link
baum | about 5 months ago * 1

Yes! 2 of these = digital compass (one for n/s and one for e/w)!!! but it doesn’t fit in breaboard… 50mil pin spacing :(

…and by the way, Sparkfun: SIP package of this device does not include the offset strap, only a set/reset strap.

pins are as follows:

1 GND1(B)

2 Vo+(A)

3 Vcc

4 GND plane

5 GND2(B)

6 S/R+

7 S/R-

8 Vo-(A)

So no offset strap. But can anyone figure out why this package has two wheatstone bridges, one of which is disconnected save two GND connections (pins 1 and 5)????

and this from honeywell is VERY helpful.