High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

ER-MG2-022(<0.02°/hr)
1. <0.02°/hr bias instability;
2. <0.025°/ √h angular random walk;
3. <0.1°/hr bias stability.

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Introduction

ER-MG2-022 High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

Introduction
The 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).

Features
High temperature
Special for borehole survey tools
Proven and robust silicon MEMS gyro
0.02°/hr bias in-run stability
0.025°/√hr angular random walk
Digital output (SPI slave)
5V operation (4.75 ~ 5.25V supply)
Low power consumption (35 mA)
High shock and vibration rejection
Hermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)
Integrated temperature sensor
RoHS compliant

Application
North seeking in logging tools/gyro tools
Pointing, steering and guiding in advanced mining/drilling equipment
Precision attitude, position measuring in navigation grade MEMS IMU/ INS
Petroleum 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
Synchronization mode	Default internal synchronization mode, external synchronization mode is optional