INERTIAL-GRADE & REFERENCE
MEMS DC ACCELEROMETERS

SDI's MEMS inertial accelerometer Q-Modules combine the same durability and reliability of SDI’s MEMS DC surface mount inertial accelerometers together with the added benefits of direct pin and form factor compatibility of industry quartz inertial accelerometers. The Q-Modules™ are recommended for any higher-grade industrial or tactical-grade inertial and tilt reference accelerometer application where quartz-based inertial accelerometers may already be in use, and where exceptional Allan Variance characteristics, excellent long-term bias repeatability, scale factor stability, low noise, axis misalignment and vibration rectification error specifications in a MEMS-based solution are preferred.

SDI's Model 2290 MEMS DC Precision Reference Accelerometer delivers inertial-grade stability and accuracy in an industrial package.  The 2290's plug-and-play design makes it quick to set up, and each unit is calibrated for consistency to keep it simple. 

g Range
Sensitivity, Differential
Frequency Response (Typ, -5%)
Frequency Response (Typ, -3dB)
Frequency Response (Min, -3dB)
Output Noise, Differential (RMS, Typ)
Max. Mechanical Shock (0.1 ms)
g
mV/g
Hz
Hz
Hz
μg/(root Hz)
g (peak)
±5
800
0 – 250
0 – 450
0 – 300
10
2000
±10
400
0 – 500
0 – 600
0 - 400
12
5000
±25
160
0 – 650
0 – 900
0 - 600
25
5000
±50
80
0 – 800
0 – 1200
0 – 900
50
5000
SDI-2227.jpg

INERTIAL MEMS ACCELEROMETER - ECCN 7A994

The Model 2225 Q-Module is a low-mass, low-power module, electrically and mechanically compatible with fixtures and equipment designed for industry-standard quartz accelerometers. It combines a high-temperature, open printed circuit board (PCB), specifically designed to give the high stability required for inertial applications, and SDI’s high-end industrial-inertial grade Model 1525 MEMS Accelerometer. The 2225 was designed to provide the high level of long-term stability required by intensive inertial-related applications for operation in -40 to +85°C environments, like backup systems for light to medium weight aircraft and helicopters.

Available in 10g, 25g, & 50g

PROVEN APPLICATIONS:

  • mechanically compatible with industry-standard quartz accelerometer fixtures and equipment

  • zero to medium frequency inertial and tilt applications

  • R&D alternative for existing quartz accelerometer systems

POWER

±9 to ±16 VDC

OUTPUT

±4.0 mA Full Scale

Current Output

CURRENT

Max 16 mA

OPERATING TEMP

-40 to +85°C

PACKAGE

Hi-Temp Open Printed Circuit Board

MASS

5.6 grams

ECCN 7A994

SDI-2227.jpg

TACTICAL INERTIAL MEMS ACCELEROMETER - ECCN 7A994

The Model 2227 Q-Module is a low-mass, low-power MEMS inertial accelerometer, designed for inertial navigation and tilt applications requiring zero-to-medium frequency response. It features an industry-standard form factor and pin configuration that is directly compatible with traditional quartz inertial accelerometers. Model 2227 modules are assembled with a high-temperature, open printed circuit board (PCB), with a circuit that converts accelerometer differential output voltage into a level of current directly proportional to the amount of applied acceleration. This design allows the Model 2227 to achieve the necessary low-noise, high-stability, long-term repeatability and low power requirements of today's inertial navigation applications, at a competitive price point.

Available in 10g, 25g, & 50g

PROVEN APPLICATIONS:

  • mechanically compatible with industry-standard quartz accelerometer fixtures and equipment 

  • zero to medium frequency inertial and tilt applications

  • R&D alternative for existing quartz accelerometer systems

POWER

±9 to ±16 VDC

OUTPUT

±4.0 mA Full Scale 

Current Output

CURRENT

Max 16 mA

OPERATING TEMP

-55 to +125°C

PACKAGE

Hi-Temp Open Printed Circuit Board

MASS

5.6 grams

ECCN 7A994

SDI-2227.jpg

PRECISION REFERENCE ACCELEROMETER - ECCN 7A994

Built with SDI’s Model 1527 Inertial MEMS accelerometers to combine extreme accuracy and inertial-grade stability with all the durability and reliability of SDI’s industrial accelerometers.

Available in 5g, 10g, 25g, & 50g

PROVEN APPLICATIONS:

· center of gravity acceleration measurements

· equipment calibration

POWER

+8 to 32 VDC

OUTPUT

Differential: +/- 4 V

CURRENT

Max 10.5 mA

OPERATING TEMP

-55 to +125°C

PACKAGE

Anodized Aluminum

MASS

9 grams

ECCN 7A994

All SDI inertial accelerometers are 100% designed, manufactured, tested, and calibrated in the USA at SDI's global corporate headquarters and R&D center, located just outside of Seattle, Washington. Please note, the sale of SDI Models 2225, 2227, and 2290 is regulated by the US Commerce Control List, ECCN 7A994, and may require an export license and government approval for orders outside of the United States. Please contact SDI with questions regarding SDI's export compliance policies and end-user requirements.