High Precision Navigation MEMS Gyroscope

ER-MG2-300/400 (0.03-0.05°/hr)
1. Up to ±400°/s measurement range;
2. 0.03-0.05°/hr bias instability;
3. 0.01-0.025°/√hr angular random walk.

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Introduction

ER-MG2-300/400 High Precision Navigation MEMS Gyroscope

Introduction
ER-MG2-300/400, a Navigation Grade MEMS gyro sensor up to 400°/s measurement range and 0.05°/hr bias instability, is specially designed for precision attitude & azimuth measuring, positioning, navigating, guidance in high performance IMU /AHRS/ GNSS-aided INS, aerial/marine/land mapping/survey system/UAV/AUV and navigation grade MEMS system.
With the high dynamic measurement range and high precision, ER-MG2-300/400 is a cost effective, robust, reliable, small size, light weight, low power, most suitable replacement of medium-low navigation grade FOG/DTG with high dynamic azimuth & attitude measuring , inertial positioning and navigation function in aerial, marine manned, or unmanned carriers.
The ER-MG2-300/400 High Precision Navigation MEMS Gyroscope is a single-axis MEMS angular rate sensor (gyroscope), capable of measuring angular velocity up to a maximum of ±400°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.
The ER-MG2-300/400 with an advanced, differential sensor design rejects the influence of linear acceleration, enables to operate in exceedingly harsh environments where shock and vibration are present.
The ER-MG2-300/400 is available in a hermetically sealed ceramic LCC surface mount package, and is capable of operating at 5V supply and a wide temperature range (−40°C to +85°C).

Features
Proven and robust silicon MEMS gyro
Up to ±400°/s measurement range
0.03-0.05°/hr bias instability
0.01-0.025°/√hr angular random walk
Digital output (SPI slave)
5V operation (4.75~5.25V supply)
Low power consumption (40 mA)
High shock and vibration rejection
Hermetically sealed ceramic LCC surface mount package (11x11x2mm)
Integrated temperature sensor
RoHS compliant

Application areas
Precision attitude & azimuth keeping, positioning, navigation in navigation grade IMU/INS/AHRS
Heading, navigation, positioning in high performance GNSS-aided INS
Orientation, navigation, positioning in aerial/marine/land mapping/survey system
Attitude and motion control in medium and large UAV, AUV
Pointing and tracking in satellite antenna, target tracking system
Guidance and navigation in medium-low navigation grade MEMS system
Azimuth, position, heaving/swaying/surging of gyrocompass in surface and submarine carriers, AUV
Antenna and line of Sight Stabilization Systems
Integrated Navigation Systems & Inertial Guidance System
Flight Control & Guidance System
Attitude Heading Reference Systems (AHRS)
Stabilization of antennas, cameras & platforms
Aerial and marine geo-mapping / surveying

Specifications

Parameter	ER-MG2-300	ER-MG2-400	Unit
Range	300	400	deg/s
Resolution	24	24	bits
Data rate	12K	12K	Hz
Group delay	<5	<3	ms
Bandwidth (-3dB)	50	100	Hz
Scale factor at 25°C	28000	20000	lsb/deg/s
Scale factor repeatability (1σ )	<50	<20	ppm
Scale factor vs temperature (1σ )	±300	±100	ppm
Scale factor non-linearity (1σ)	<300	100	ppm
Bias instability	0.03	0.05	deg/hr
Bias stability (1σ 10s)	0.15	<0.5	deg/hr
Bias stability (1σ 1s)	0.5	<1.5	deg/hr
Angular random walk	<0.01	<0.025	°/ √h
Bias error over temperature (1σ)	10	3	deg/hr
Bias temperature variations, calibrated (1σ)	<1	<0.5	deg/hr
Bias repeatability (1σ )	<0.3	<0.3	deg/hr
Noise peak to peak	±0.01	±0.05	deg/s
G-sensitivity	<1	<1	°/hr/g
Vibration rectification error	<1	<1	°/hr/g (rms)
Startup time	1	1	s
Sensor resonant frequency	11K~13K
Environment, Power and Physical
Shock (charged)	1000g,1ms, half sine wave
Shock (uncharged)	10000g,1.0ms, half sine wave
Vibration (operating)	12grms, 20Hz to 2KHz random vibration
Operating temperature	-40°C~85°C
Max storage (survival) temperature	-55°C~125°C
Supply voltage	5±0.25V
Current consumption	40mA