M-V340PD
IMU (Inertial Measurement Unit)
GENERAL DESCRIPTION
The M-V340PD is a small form factor inertial measurement unit (IMU) with 6 degrees of freedom: triaxial angular rates and
linear accelerations, and provides high-stability and high-precision measurement capabilities with the use of high-precision
compensation technology. A variety of calibration parameters are stored in memory of the IMU, and are automatically
reflected in the measurement data being sent to the application after the power of the IMU is turned on. With a
general-purpose SPI/UART supported for host communication, the M-V340PD reduces technical barriers for users to
introduce inertial measurement and minimizes design resources to implement inertial movement analysis and control
applications.
The features of the IMU such as high stability, high precision, and small size make it easy to create and differentiate
applications in various fields of industrial systems.
FEATURES
Small Size, Lightweight : 10x12x4mm, 1 grams
Low-Noise, High-stability
Gyro Bias Instability : 3.5 deg/hr
Angular Random Walk : 0.17 deg/ hr
Initial Bias Error : 0.5 deg/s (1)
6 Degrees Of Freedom
Triple Gyroscopes : 450 deg/s,
Tri-Axis Accelerometer : 5.8 G
16bit data resolution
Digital Serial Interface : SPI / UART
Calibrated Stability (Bias, Scale Factor, Axial Alignment)
Data output rate : to 1k Sps
Calibration temperature range : 40 C to +85 C
Operating temperature range : 40 C to +85 C
Single Voltage Supply : 3.3 V
Low Power Consumption : 16.5mA (Typ.)
APPLICATIONS
Unmanned systems
Motion analysis and control
Navigation systems
Vibration control and stabilization
Pointing and tracking systems
FUNCTIONAL BLOCK DIAGRAM
Temp.
Signal
Sensor
Processing SIN
UART
SOUT
Calibration
Triple
SDI
Digital
Gyroscope
Processing
SDO
SPI
SCLK
Self test
/CS
Tri-axis VCC
Accelerometer
GND
GPIO
/RST
DRDY EXT
(GPIO1) (GPIO2)
1
SENSOR SECTION SPECIFICATION
T =25C, VCC=3.3V, angular rate=0 deg/s, 1G, unless otherwise noted.
A
Test Conditions /
Parameter Min. Typ. Max. Unit
Comments
GYRO SENSOR
Sensitivity
Dynamic Range - 450 - - deg/s
Sensitivity - 0.015 (deg/s)/LSB
Temperature Coefficient - 10 - ppm/C
1 , 40C T +85C
A
Nonlinearity Best fit straight line <300dps - 0.1 - % of FS
- 0.5 - % of FS
>300dps
Misalignment 1 , Axis-to-axis, = 90 ideal - 0.1 - deg
Bias
Initial Error 1 , 40C T +85C - 0.5 - deg/s
A
Temperature Coefficient
1 , 40C T +85C 0.001 (deg/s )/C
A
(Linear approximation)
Bias Instability Average - 3.5 - deg/hr
Angular Random Walk Average - 0.17 - deg/ hr
Linear Acceleration Effect Average 0.01 (deg/s)/G
Noise
Noise Density Average , f = 10 to 20 Hz - 0.0025 - (deg/s)/ Hz , rms
Frequency Property
3 dB Bandwidth - - 200 - Hz
ACCELEROMETERS
Sensitivity
Dynamic Range - 5.8 - - G
Sensitivity - 0.18 mG/LSB
Temperature Coefficient 1, 40C T +85C - 35 - ppm/C
A
Nonlinearity - 1 - % of FS
1G , Best fit straight line
Misalignment 1 , Axis-to-axis, = 90 ideal - 0.2 - deg
Bias
Initial Error 1 , 40C T +85C - 8 - mG
A
Temperature Coefficient
1 , 40C T +85C 0.1 mG/C
A
(Linear approximation)
Bias Instability Average - 0.05 - mG
Velocity Random Walk Average - 0.15 - (m/sec)/ hr
Noise
Noise Density Average, f = 10 to 20 Hz - 0.25 - mG/ Hz , rms
Frequency Property
3 dB Bandwidth - - 200 - Hz
TEMPERATURE SENSOR
Output = 1469
*1
Scale Factor - -0.0053964 - C/LSB
@ +25C
*1) This is a reference value used for internal temperature compensation. We provide no guarantee that the value gives an
absolute value of the internal temperature.
Note) The values in the specifications are based on the data calibrated at the factory. The values may change according to
the way the product is used.
Note) The Typ values in the specifications are average values or 1 values.
Note) Unless otherwise noted, the Max / Min values in the specifications are design values or Max / Min values at the
factory tests.
2