Electric Compass

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Electric Compass

Electric Compass

Electric Compass

The Electric Compass is a high sensitivity digital compass IC for measuring terrestrial magnetism in the X-axis, Y-axis, and Z-axis. It combines magnetic sensors for detecting terrestrial magnetism, a sensor driving circuit, low noise amplifier, high resolution ADC for each channel and control circuit for low power computation.

The Electric Compass supports for low power mode in addition to normal mode to extend battery life. The built-in temperature sensor can compensate for offset drift caused by non-linear ADC characteristics for each temperature. With small footprint and low power consumption, the Electric Compass is suitable for mobile phones and mobile GPS systems.

Product Measurable Range Operation Voltage Sensitivity Resolution Size[mm] Package Others
MXG1300 ±4914 μT VDD 2.7V~3.6V
VIO 1.6V~VDD
0.15 μT/LSB 16-bit 1.6x1.6x0.5 14-balll
WLCSP
Obsolete
MXG2320 ±4914 μT VDD 2.5V~3.6V
VIO 1.65V~VDD
0.60 μT/LSB or 0.15 μT/LSB 14-bit or 16-bit 1.2x1.2x0.5 8-balll
WLCSP
MXG3300 ±4914 μT VDD 1.65V~1.95V 0.60 μT/LSB or 0.15 μT/LSB 14-bit or 16-bit 1.2x0.8x0.5 5-balll
WLCSP
FIFO,ODR 200Hz
MXG4300 ±4914 μT VDD 1.65V~1.95V 0.15 μT/LSB 16-bit 0.76 X 0.76 X 0.5 4-balll
WLCSP
ODR 200Hz

Advanced Fusion Algorithm

Haechitech provides unique algorithm called Advanced Fusion Algorithm. MAFA processes multiple sensor outputs from e-compass, accelerometer and gyroscope concurrently. MAFA then generates several types of angle information such as Euler angle, quaternion and Euler vector. MAFA enables users to find more accurate offset in e-compass(magnetometer), which is crucial for many application.

Pseudo Gyroscope

Angular rate, an output of the gyroscope sensor, can be calculated through the “Pseudo Gyroscope” solution using e-compass and accelerometer. Pseudo Gyroscope offers many benefits in power consumption and cost reduction by eliminating a gyroscope. Pseudo Gyroscope can be a reasonable alternative to pricey actual gyroscopes.

Advanced Calibration

Calibration for finding offset is critical to get best performance. Typically, “8-Figure Motion” has been used for e-compass calibration, however this motion is unnatural. Haechitech algorithm for Advanced Calibration supports simpler calibration motions such as, “Circular Motion with Tilt” or “Natural Hand (back-and-forth) Motion.”

Hall Sensor

PRODUCT

Digital Hall Sensor

Digital Hall sensor is a multi-function Hall-effect sensor designed with mixed signal CMOS technology. The device integrates Hall elements, dynamic offset cancellation system, a programmable amplifier, low power ADC and an arithmetic logics in a single chip. Bop, Brp, operation magnetic polarity and operation period are programmable by I2C interface.

On-the-shelf s/w package is able to transform each magnetic strength into angle between the magnet and the device with robust algorithm. Small WLCSP footprint and low power operation enables to implement angle gaging system in mobile handset and industrial system.

Product Operation
Voltage
Sensitivity Measurable
Range
Wakeup
Period
Current
Consumption
Package
MXM1120
VDD: 2.7V~3.6V
VID: 1.65V~VDD
5μT/LSB
~ 80μT/LSB
±2.5mT ~ 40.8mT 12.5ms ~ 200ms Power-down: 0.1μA
Normal mode: 18μA @100ms
1.33x1.33x0.5
9-ball WLCSP
MXM1120SO
VDD: 2.7V~3.6V
VID: 1.65V~VDD
7.5μT/LSB
~ 120μT/LSB
±3.8mT ~ 61.2mT 12.5ms ~ 200ms Power-down: 0.1μA
Normal mode: 18μA @100ms
4.93x5.99x1.63
8-pin SOP
MXM1161
VDD: 1.65V~3.6V ±2mT ~ ±40mT Power-down: 1.3μA
Operaing mode: average 10μA at 5Hz
average 1.3mA at 1kHz
1.5x1.5x0.5 9-ball WLCSP
MXM1400
VDD: 1.65V~3.6V Digital Hall sence: ±2mT ~ ±40mT
Angular sence: ±30mT ~ ±90mT
Power-down: 1.3μA
Operaing mode: average 10μA at 5Hz
average 1.3mA at 1kHz
3.0x3.0x0.8 10-pin DFN
6.0x4.9x1.7 10-pin SOP

Hall Switch

MXM1xxx products are integrated Hall effect magnetic switches with dynamic offset cancellation, low power consumption, and temperature stability of the magnetic thresholds for highly accurate applications. This sensor is comprised of a Hall element, an offset cancellation circuitry, a low noise gain amplifier, a comparator, and control logic in a single chip.

It supports for programmable function via single wired interface in order to provide more flexible design by changing operation mode (omni-polar/bi-polar/uni-polar), operation threshold level, and output port type.

Product Operating
Voltage
Operation
Mode
Operation
PointRange
Hysteresis Current
Consumption
Operation
Temperature
Package Output period
MXM1170
series
1.65V ~ 1.95V Programmable
(Typ. Omnipolar)
Programmable
(Typ. Bop: ± 4.6 mT
Typ. Brp: ± 3.8 mT)
0.8mT Standby: 3μA
Active: 1.5mA
Average: 4μA @ 200Hz
-30~85°C 1.2x1.6 x0.37
4-pin DFN
0.77x0.64x0.5
4-ball WLCSP
50ms
~100ms
MXM1280x
series
3.8V ~ 30V Bipolar ±1mT,
±3mT,
±5mT,
etc
2mT,
6mT,
10mT,
etc
TBD
(typ. 2.0mA)
-40~150°C TO-92S
SOT23-3L
Continuous
Unipolar Bop 10mT, Brp 5mT,etc TBD TBD
(typ. 2.0mA)
-40~150°C TO-92S
SOT23-3L
Continuous
Environmental Sensor

PRODUCT

Temperature & Humidity Sensor

MXH product family are a state of the art temperature and relative humidity sensors utilized proven techniques for measuring humidity using polymer dielectric film along with CMOS mixed signal integrated circuits. It provides fully calibrated digital output(I2C, PWM, PDM) and analog output as well. In particular, its analog output allows for easy integration without the need for additional calibration/component.

The resolution can be changed by command (8/12bit up to 12/14bit for RH/T). Every sensor is individually calibrated and tested and the lot identification is printed on the sensor.

Product Operation
Voltage
Accuracy Output Current
Consumption
Functions Package
MXH1100
4.5 ~ 5.5V RH±3% @ 20~80%
±0.5°C @ 20~60 °C
Single analog output port , I2C, PWM, PDM ~300uA
@ Analog output mode
Linear/Temperature calibration,
Self-diagnosis
2.8x3.6x0.75
10-pin DFN
MXH1130
4.5 ~ 5.5V RH±3% @ 20~80%
±0.5°C @ 20~60 °C
Dual analog output ports, I2C, PWM ~600uA
@ Analog output mode
Linear/Temperature calibration,
Self-diagnosis
2.8x3.6x0.75
10-pin DFN
MXH2101
2.1 ~ 3.6V RH±3% @ 20~80%
±0.5°C @ 10~60 °C
I2C, PWM, PDM, SPI ~0.13uA @ Sleep mode
~400uA @ Operation mode
Linear/Temperature calibration,
Self-diagnosis
2.8x3.6x0.75
10-pin DFN
Head Office
Star Enterprise Hall-207, B-building, Chungbuk Techno-Park, Yeon-Gu-Dan-Ji-Ro 40, Ochang, Cheong-Won, Cheong-Ju, Chungbuk, Repbulic of Korea (28116)
Seoul Office
4th Floor, Sukjeongheon Building, 85, Seolleung-ro 112-gil, Gangnam-gu, Seoul, Republic of Korea [Post code 06096]

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