Datasheet

Datasheet
BMM150 Geomagnetic Sensor
Page 7
BST-BMM150-DS001-01 | Revision 1.0 | April 2013 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
ODR=10Hz
I
DD,ha,m
High accuracy
preset
Nominal V
DD
supplies
T
A
=25°C,
ODR=20Hz
4.9
mA
Supply Current in
Suspend Mode
I
DDsm,m
Nominal V
DD
/V
DDIO
supplies, T
A
=25°C
1
3
µA
Peak supply
current in Active
Mode
I
DDpk,m
In measurement
phase
Nominal V
DD
supplies
T
A
=25°C
18
20
mA
Peak logic supply
current in active
mode
I
DDIOpk,m
Only during
measurement
phase
Nominal V
DDIO
supplies
T
A
=25°C
210
270
µA
POR time
t
w_up,m
from OFF to
Suspend; time
starts when
VDD>1.5V and
VDDIO>1.1V
1.0
ms
Start-Up Time
t
s_up,m
from Suspend to
sleep
3.0
ms
1.2 Magnetometer output signal specification
MAGNETOMETER OUTPUT SIGNAL
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Device
Resolution
D
res,m
T
A
=25°C
0.3
µT
Gain error
4
G
err,m
After API
compensation
T
A
=25°C
Nominal V
DD
supplies
±2
±5
%
Sensitivity
Temperature
Drift
TCS
m
After API
compensation
-40°C ≤ T
A
≤ +85°C
Nominal V
DD
supplies
±0.01
±0.03
%/K
Zero-B offset
OFF
m
T
A
=25°C
±40
µT
Zero-B offset
OFF
m,cal
After software
±2
µT
4
Definition: gain error = ( (measured field after API compensation) / (applied field) ) - 1