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TriRate
Triaxial MEMS Gyroscope
Product Specification
Document Number: DSS-0801
Document Revision - K
Functional Description
The Tri-Rate is a complete tri-axial angular rate sensor based on a surface-micromachining technology capable of sensing angular motion about three orthogonal axes. The Tri-Rate provides analog outputs for angular rate and precision references about the X, Y, and Z axes. A temperature output is also provided allowing the implementation of compensation techniques. Two digital self-test inputs electromechanically excite each axis to test proper operation of both sensors and the signal conditioning circuits. The Tri-Rate is available in a custom SMT package measuring 0.70 in × 0.70n × 0.40 in.
For pricing information contact MEMSense Sales at 888.668.8743, Extension Number 15, or via email at
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.
Applications
- Antenna Stabilization
- Automotive Control
- Inertial Measurement Units
- Orientation Sensing
- 3D Simulators
- Industrial Automation
- Gaming Devices
- Industrial Automation
Figure 1 - TriRate
Features
- Triaxial Angular Rate Sensing
- Solid State MEMS Reliability
- Low Noise
- Low Power
- SMT Miniature Package
- 5 V Single Supply Operation
Table 1 - Ordering Information
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Part Number
|
Rate
(°/s)
|
Bandwidth
(Hz.)
|
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TR0150S050
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±150
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50
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TR0300S050
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±300
|
50
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Contact
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Custom
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Custom
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Figure 2 - TriRate Orientation Diagram
Table 2 - Specifications
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Parameter
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Specification
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Units
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Conditions
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Sensor
|
|
|
|
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Supply Voltage
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4.75 to 5.25
|
V
|
Note 2
|
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Supply Current
|
18, (24)
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mA
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Typical, (Maximum)
|
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Mass
|
5
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Grams
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Maximum
|
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Commercial Temp Range
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0 to +70
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°C
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Temperature for max and min specs.
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Military Temp Range
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-40 to +85
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°C
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Request quotation for 100% test.
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Rate Output
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0150S050
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0300S050
|
|
|
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Dynamic Range
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±150
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± 300
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°/s
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Full scale range over specified temperature
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|
Sensitivity
|
12.5
|
5.0
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mV/°/s
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Note 2
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Nonlinearity
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0.1
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0.1
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% of FS
|
Best fit straight line
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Zero Rate
|
2.50
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2.50
|
V
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|
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Turn On Time
|
50
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50
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ms
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Power on to ± ½ °/s of Final
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Rate Noise Density
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0.04
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0.05
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°/s/Hz½
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Maximum
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Bandwidth 1
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50
|
50
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Hz
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Factory set 3dB point
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Cross Axis Sensitivity
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4.0
|
4.0
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%
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|
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Rate Reference Output
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|
|
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Voltage Value
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2.5
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V
|
|
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Temperature Drift
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±5.0
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mV
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Deviation from 25°C
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Temperature Output
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|
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Voltage at 25 °C
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2.50
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V
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Scale Factor
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9.0
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mV/°C
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0150/0300
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Absolute Max Ratings
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|
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Acceleration Powered
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2000 max
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g
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Any axis 0.5ms
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Vdd
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-0.3, +6.0
|
V
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Minimum, Maximum
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Operating Temperature
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-40 to +85
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°C
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Storage Temperature
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-65 to +150
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°C
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Typical Values at 25 °C, Vdd = 5.0V, 0 °/s unless otherwise noted
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- Other rate bandwidth configurations are available upon request.
- Rate output is ratiometric to Supply Voltage.
Figure 3 - Functional Block Diagram
Table 3 - Pin Function Description
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Pin No.
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Name
|
Function
|
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1
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XREF
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X axis analog precision reference output. 3
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2
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XRATE
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X axis analog rate signal output.
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3
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ZREF
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Z axis analog precision reference output.3
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4
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ZRATE
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Z axis analog rate signal output.
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5
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TEMPZ
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Analog temperature voltage output, Z gyro.
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6
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AGND
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Analog power supply return.
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7
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TEMPX
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Analog temperature voltage output, X gyro.
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8
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TEMPY
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Analog temperature voltage output, Y gyro.
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9 - 35
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No electrical connection required (open) 1
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36
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AGND
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Analog power supply return.
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37
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VDDA
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Analog power supply.
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38
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TESTN
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High-level activated digital input stimulating X, Y and Z rate to Ref – 1.9 V.2
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39
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TESTP
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High-level activated digital input stimulating X, Y and Z rate to Ref +1.9 V. 2
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40 - 42
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No electrical connection required (open) 1
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43
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YREF
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Y axis analog precision reference output. 3
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44
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YRATE
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Y axis analog rate signal output.
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- Physical solder connection recommended.
- The 150°/s rate sensor will produce a 1.9 V output change while the 300°/s rate sensor will produce a 417 mV output change.
- 3. Do Not Ground 2.5V Precision Reference Outputs, Damage to the Device May Occur (Recommend floating or the use of a 20k resistor or higher)
All dimensions in [mm] inches - Hand solder attachment recommended
Figure 4 – Physical Dimensions
Figure 5 – Recommended PCB Pattern
Document Change History
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Rev
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Status
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Description
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Date
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J
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Obsolete
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New datasheet in MEMSense document format.
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1/29/2009
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|
K
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Released
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Added ratiometric note to spec table. Normalized overall formatting
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12/03/2009
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