Gyrosens is a professional manufacturer and OEM/ODM provider of inertial sensors and navigation solutions since 2008.

GS16488 10-DOF High-Performance IMU

GS16488 combines 3-axis gyro, accelerometer, magnetometer, and barometer into a true 10-DOF inertial solution. With gyro bias 0.5°/h and accelerometer bias 10μg, it delivers precision previously found only in larger systems. The 44×47×14mm package supports SPI interface and operates from -40°C to +85°C. Designed as a drop-in replacement for imported IMUs, it serves gimbal stabilization, rail inspection, and UAV navigation with uncompromised performance.

Feature:
● High precision MEMS inertial navigation
● Support dynamic fast alignment
● High bandwidth, high data update rate
● 1 channel SPI
● Small size, light weight
● Solid and reliable
● Fully compatible with a foreign 10 °rees of freedom inertial measurement system

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Product Introduction

Inertial measurement Unit GS16488 is a domestic inertial measurement equipment with high performance, small size and high overload resistance. Gyroscope zero bias stability 0.5°/h (Allan), accelerometer zero bias stability 10µg (Allan).

It can be used for precise navigation, control and dynamic measurement of weapons. This series of products adopts high-precision MEMS inertial devices, with high reliability and high robustness, and can accurately measure the angular velocity and acceleration information of the moving carrier in harsh environments.

The inertial measurement unit GS16488 with built-in three-axis gyro and three-axis accelerometer is used to measure the carrier's three-axis angular rate and three-axis acceleration.

Through the serial port according to the convention communication protocol output error compensation (including temperature compensation, installation misalignment Angle compensation, nonlinear compensation, etc.) gyroscope, accelerometer data, and built-in three-axis magnetic sensor, pressure sensor.

Pin configuration

Pin Number	Name	Type	Describe
10,11,12	VDD	Power
13,14,15	GND	Power Ground
7	DIO1	Input/Output	Universal I/O, configurable
9	DIO2	Input/Output
1	DIO3	Input/Output
2	DIO4	Input/Output
3	SPI-CLK	Input	The SPI master/slave mode is configurable. The default mode is slave
4	SPI-MISO	Output
5	SPI-MOSI	Input
6	SPI-CS	Input
8	RST	Input	Restoration
23	VDDRTC	Power supply	/
16～21,24	NC	Spare pin	Manufacturer's reservation

Electrical Interface

3 (13)

2 (14)

Dimensions

Coordinate System Definition

The coordinate system of the gyroscope and accelerometer is defined as shown in the figure below, with the arrow direction being positive.

Technical Specifications

Parameter		Test condition	MIN	TYP	MAX	Uints
Power supply parameter
Voltage			3.0	3.3	3.6	V
Power dissipation					1.5	W
Ripple		P-P			100	mV
Product performance
Gyroscope	Range		±400	±450		°/s
	Bias stability	Allan		0.8		° /h
	Random walk			0.06		° /√h
	Bias Repeatability	−40°C ≤ TA ≤ +85°C		0.1	0.2	°/s
	Scale factor repeatability	−40°C ≤ TA ≤ +85°C		0.1	1	%
	Scale factor nonlinearity	FS=450 º/s		0.1	0.2	%FS
	Bandwidth				400	Hz
Accelerometer	Range			±10		g
	Bias stability	Allan		0.01		mg
	Random walk			0.02	0.02	m/s/√h
	Bias Repeatability	−40°C ≤ TA ≤ +85°C		±2		mg
	Scale factor repeatability	−40°C ≤ TA ≤ +85°C		0.5	1	%
	Scale factor nonlinearity			0.1		%FS
	Bandwidth				200	Hz
Magnetometer	Dynamic measuring range		±2.5			gauss
	Resolution			120		uGauss
	Noise density			50		uGauss
	Bandwidth			200		Hz
Barometer	Pressure range		450		1100	mbar
	Resolution			0.1		mbar
	Absolute measurement accuracy			1.5		mbar
Communication interface	One SPI	Baud rate			15	MHz
Structural characteristics	Size		44×47×14	mm	Size
Structural characteristics	Weight		50	g	Weight
Reliability	MTBF			20000		h
Reliability	Continuous working hours			120		h
Environment
Operating temperature			-40		75	°C
Storage temperature			-45		85	°C
Vibration			10～2000Hz，3g
Impact			30g，11ms
Overload		(Half-sine 0.5msec)	1000g