HMC5843
SPECIFICATIONS (* Tested at 25°C except stated otherwise.)
Characteristics
Power Supply
Supply Voltage
Conditions*
Min
Typ
Max
Units
AVDD Referenced to AGND
DVDD Referenced to DGND
Sleep Mode (dual supplies)
Idle Mode (dual supplies)
Measurement Mode
2.5
3.3
Volts
Volts
uA
1.6
1.8
2.5
240
0.8
2.0
Current Draw
-
-
-
-
-
-
uA
mA
AVDD = 2.5 volts, DVDD = 1.8 volts
Sleep Mode (single supply)
Idle Mode (single supply)
Measurement Mode
-
-
-
110
340
0.9
-
-
-
uA
uA
mA
AVDD = 2.5 volts
Performance
Field Range
Full scale (FS) – total applied field
-4
+4
20
gauss
Cross-Axis Sensitivity
Cross field = 0.5 gauss,
Happlied = ±3 gauss
±0.2%
%FS/gauss
Disturbing Field
Sensitivity starts to degrade.
gauss
Use S/R pulse to restore sensitivity.
Max. Exposed Field
Measurement Period
I2C Address
No perming effect on zero reading
Output Rate = 50Hz (10Hz typ.)
10000
10
gauss
msec
-
7-bit address
8-bit read address
0x1E
0x3D
0x3C
hex
hex
8-bit write address
hex
I2C Rate
Controlled by I2C Master
-10
+10
%
I2C bus pull-up
I2C Hysteresis
Internal passive resistors
50
kilo-ohms
Hysteresis of Schmitt trigger inputs on SCL
and SDA - Fall (DVDD=1.8V)
Rise (DVDD=1.8V)
0.603
1.108
±0.55
±1.0
Volts
Volts
gauss
gauss
±% FS
%
Self Test
Positive and Negative Bias Mode
Mag Dynamic Range
Linearity
3-bit gain control
Full scale input range
All gain/dynamic range settings
-3dB point
±0.7
±4.0
0.1
Gain Tolerance
Bandwidth
±5
10
7
kHz
Resolution
AVDD=3.0V, GN
milli-gauss
dB
Signal-to Noise Ratio
Turn-on Time
General
70
200
us
ESD Voltage
700
85
V
°C
Operating Temperature
Storage Temperature
Weight
Ambient
Ambient, unbiased
Nominal
-30
-40
125
°C
50
milli-grams
2
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