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MEMSIC

MMC33163MT Datasheet Preview

MMC33163MT Datasheet

Gauss 3-axis Magnetic Sensor

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±16 Gauss 3-axis Magnetic
Sensor, With I2C Interface
MMC3316xMT
FEATURES
Fully integrated 3-axis magnetic sensor
and electronic circuits requiring fewer
external components
Superior Dynamic Range and Accuracy:
±16G FSR with 14bit operation
2 mG/LSB Resolution
2 mG RMS noise
Enables heading accuracy <1º
Small, Low profile package
2.0x2.0x1.0mm
SET/RESET function
Allows for elimination of error due to
Null Field output change over
temperature
Clears the sensors of residual
magnetization resulting from strong
external fields
Low power consumption (100µA @ 7Hz)
1µA (max) power down function
I2C Slave, FAST (400 KHz) mode
1.62V~3.6V wide power supply operation
supported, 1.8V I/O compatibility.
RoHS compliant
APPLICATIONS :
Electronic Compass
GPS Navigation Assist
Position Sensing
DESCRIPTION:
The MMC3316xMT is a complete 3-axis magnetic
sensor with on-chip signal processing and integrated
I2C bus. The device can be connected directly to a
microprocessor, eliminating the need for A/D
converters or timing resources. It can measure
magnetic fields within the full scale range of 16
Gauss, with 2mG/LSB resolution and 2mG rms noise,
enabling heading accuracies of <1 degree in electronic
compass applications.
X-axis
Sensor
Y-axis
Sensor
Signal Path X
Signal Path Y
Z-axis
Sensor
Bridge
Regulator
Signal Path Z
Bandgap
Reference
ADC Reference
Generator
Timing Generation
I2C Interface
Magnetize Controller
Fuses, Control Logic,
Factory Interface
FUNCTIONAL BLOCK DIAGRAM
Contact Memsic for access to advanced calibration
and tilt-compensation algorithms.
An integrated SET/RESET function provides for the
elimination of error due to Null Field output change
with temperature. In addition it clears the sensors of
any residual magnetic polarization resulting from
exposure to strong external magnets. The
SET/RESET function can be performed for each
measurement or periodically as the specific application
requires.
The MMC3316xMT is packaged in a small low profile
LGA package (2.0 x 2.0 x 1.0 mm,) and with an
operating temperature rang from -40C to +85C.
The MMC3316xMT provides an I2C digital output with
400 KHz, fast mode operation.
Information furnished by MEMSIC is believed to be accurate and reliable.
However, no responsibility is assumed by MEMSIC for its use, or for any
infringements of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or
patent rights of MEMSIC.
MEMSIC, Inc.
One Technology Drive, Suite 325, Andover, MA01810, USA
Tel: +1 978 738 0900
Fax: +1 978 738 0196
www.memsic.com
MEMSIC MMC3316xMT Rev.B
Page 1 of 15
10/8/2012




MEMSIC

MMC33163MT Datasheet Preview

MMC33163MT Datasheet

Gauss 3-axis Magnetic Sensor

No Preview Available !

SPECIFICATIONS: (Measurements @ 25C, unless otherwise noted; VDA = VDD= 1.8V unless otherwise specified)
Parameter
Conditions
Min Typ
Max Units
Field Range
(Each Axis)
Supply Voltage
Supply Voltage rising time
Supply Current2
Power Down Current
Operating Temperature
Storage Temperature
Linearity Error
(Best fit straight line)
Hysteresis
Repeatability Error
Alignment Error
Transverse Sensitivity
Total RMS Noise
Output resolution
Heading accuracy3
Bandwidth
Sensitivity
Sensitivity Change Over
Temperature
Null Field Output
Total applied field
VDA
VDD (I2C interface)
7 measurements/second
±16 Gauss
3 sweeps across ±16 Gauss
3 sweeps across ±16 Gauss
16 Gauss
16 Gauss
-40~85C
16 Gauss
16 Gauss
Null Field Output Change Over
Temperature 4
Disturbing Field
Maximum Exposed Field
Delta from 25C
16 Gauss
1.621
1.621
60
0.01
-40
-55
-10
460
-0.2
8090
25
16
1.8
1.8
100
1.0
0.5
0.5
1.0
2.0
2.0
14
0.5
100
512
1100
8192
0.4
Gauss
3.6 V
3.6 V
5.0 mS
160 µA
1.0 µA
85 C
125 C
%FS
%FS
%FS
3.0 degrees
5.0 %
mGauss
bits
1.0 degrees
Hz
+10 %
564 counts/Gauss
ppm/C
+0.2
8294
Gauss
counts
mGauss/C
10000
Gauss
Gauss
Note: 1. 1.62V is the minimum operation voltage, or VDA / VDD should not be lower than 1.62V.
2. Power consumption is proportional to how many measurements performed per second, for example, at one
measurement per second, the power consumption will be 100µA /7=14µA .
3. MEMSIC product is with low noise and enables users to utilize heading accuracy to be 0.5 degree typical
and 1.0degree maximum when using MEMSIC‟s proprietary software or algorithm
4. The error can be eliminated by using SET and RESET to determine the true Null Field output for each
measurement.
MEMSIC MMC3316xMT Rev.B
Page 2 of 15
10/8/2012


Part Number MMC33163MT
Description Gauss 3-axis Magnetic Sensor
Maker MEMSIC
Total Page 15 Pages
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