Data Sheet

MLX90393
Micropower Triaxis® Magnetometer Datasheet
Parameter Remark Min Nom Max Unit
Startup
T
POR
Power-on-reset completion time 0.6 1.5 ms
External Trigger
T
TRIG
Trigger pulse width (active high) 0.01 250 us
(1) This conversion time is defined as the time to acquire a single axis of the magnetic flux density.
When measuring multiple axes, they are obtained through time-multiplexing, i.e. X(t), Y(t+T
CONVM
)
and Z(t+2*T
CONVM
). The conversion time is programmable through parameters OSR and DIG_FILT for
magnetic conversion time and OSR
2
for temperature conversion time. The conversion sequence is
always TXYZ, the opposite of the ZYXT argument of the command set.
(2) The time T
INTERVAL
is defined as the time between the end of one set of measurements (any
combination of TXYZ) and the start of the following same set of measurements in BURST and WOC
mode. As a result of this, the maximum output data rate is not only a function of T
INTERVAL
but equals
1/(T
CONV_BURSTWOC
+ T
INTERVAL
).
(3) Conversion time table as a function of OSR and DIG_FILT. The cells in yellow are prohibited
operating modes when HALL_CONF=0xC (default), but are allowed in case HALL_CONF=0x0.
Typical T
CONV
(TXYZ)
for OSR
2
=0x0 [ms]
OSR
0
1
2
3
DIG_FILT
0
1.27
1.84
3.00
5.30
1
1.46
2.23
3.76
6.84
2
1.84
3.00
5.30
9.91
3
2.61
4.53
8.37
16.05
4
4.15
7.60
14.52
28.34
5
7.22
13.75
26.80
52.92
6
13.36
26.04
51.38
102.07
7
25.65
50.61
100.53
200.37
Table 1: Tconv as a function of OSR & DIG_FILT (scales w/ main oscillator variations)
3901090393 Data Sheet
Rev002 Page 4 Feb-2015