IntroductionThe ER-MG2-022 is a single-axis MEMS angular rate sensor (gyroscope) capable of measuring angular velocity up to a maximum of ±100°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.The ER-MG2-022 is intended for north seeking applications. An advanced, differential sensor design rejects the influence of linear acceleration, enabling the ER-MG2-022 to operate in exceedingly harsh environments where shock and vibration are present.The ER-MG2-022 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 +125°C).

FeaturesHigh temperatureSpecial for borehole survey toolsProven and robust silicon MEMS gyro0.02°/hr bias in-run stability0.025°/√hr angular random walkDigital output (SPI slave)5V operation (4.75 ~ 5.25V supply)Low power consumption (35 mA)High shock and vibration rejectionHermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)Integrated temperature sensorRoHS compliant

ApplicationNorth seeking in logging tools/gyro toolsPointing, steering and guiding in advanced mining/drilling equipmentPrecision attitude, position measuring in navigation grade MEMS IMU/ INSPetroleum exploration

Specifications

Parameter	ER-MG2-022	Unit
High Temperature MEMS Gyro Range	100	deg/s
Bandwidth (BW@3DB Customizable)	12.5	Hz
Output Accuracy (Digital SPI)	24	bits
Data Output Rate (ODR)(Customizable)	2K	Hz
Delay (Customizable)	<3	ms
Bias Stability (Allan Curve @Room Temp)	<0.02	deg/hr (1σ )
Bias Stability (10s standard deviation @Room Temp）	<0.1	deg/hr (1σ )
Bias Stability (1s standard deviation @Room Temp）	<0.3	deg/hr (1σ )
Bias Drift	<0.25	deg/hr/°C
Bias Drift (After Temp Compensation)	<0.05	deg/hr/°C
Bias Repeatability (Room Temp)	0.1	deg/hr (1σ )
Scale Factor Repeatability (Room Temp)	<100ppm	ppm (1σ )
Scale Factor Temp Drift (1sigma)	±500ppm	ppm (1σ)
Scale Factor Nonlinearity (Full Temp)	<300ppm	ppm
Random Walk (ARW)	<0.025	°/ √h
Resolution	0.05	°/hr
Bandwidth Noise (Peak to Peak)	±0.1	deg/s
G-value Sensitivity	<1	°/hr/g
Vibration Rectification Error (12gRMS，20-2000)	<1	°/hr/g (rms）
Power-on Time (Valid Data)	1	s
Shock (charged)	200g (1ms, 1/2 sine)
Shock Resistance (uncharged)	1.8wg 3ms
Vibration (charged)	12g rms (20Hz to 2kHz)
Operation Temp	-40°C~+125°C
Storage Temp	-55°C~+125°C
Size	11x11x2mm
Package	LCC