AN-1146
APPLICATION NOTE
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ADIS16334 Mounting/Mechanical Design Guidelines and Examples
by Mark Looney
INTRODUCTION
CONNECTOR-UP MOUNTING
The ADIS16334 is a low profile, fully calibrated, MEMS inertial
measurement units (IMU). Figure 1 provides a top view of this
package, which provides four mounting holes, with recessed
mounting shelves that help manage the overall height of the
attachment hardware. The mounting holes provide enough
clearance for M2 × 0.4 mm or 2 to 56 machine screws.
Figure 3 provides an example of using a connector-up mounting
approach. Figure 4 provides some mechanical design information
for this approach when using the flexible cable that comes with the
ADIS16334/PCBZ.
MOUNTING HOLES
FLEXIBLE CABLE/CONNECTOR
Figure 3. Connector-Up Example
Figure 1. ADIS16334AMLZ, Top View
28.40mm
Figure 2 provides a bottom view of this package. Notice that the
substrate, which supports the internal sensors, extends beyond
the bottom of the aluminum housing.
15mm TO 45mm
20.15mm
SUBSTRATE
10.07mm
ADIS16334AMLZ
INTERFACE PCB
FLEXIBLE CONNECTOR
10511-003
ELECTRICAL
CONNECTOR
10511-001
ALUMINUM HOUSING
10511-101
MOUNTING SHELF
Figure 4. Connector-Up Mounting Example
CONNECTOR-DOWN MOUNTING
MOUNTING
HOLES
ELECTRICAL
CONNECTOR
10511-002
ALUMINUM
HOUSING
Figure 2. ADIS16334AMLZ, Bottom View
This package enables two different mounting approaches:
connector up and connector down. The up and down in these
designations describe the direction of the electrical connector,
with respect to the mating surface.
MATING CONNECTOR
The electrical connector is a dual-row, 1 mm pitch header that
has 20 conductors. ADIS16334 evaluation tools use a part from
Samtec’s CLM-110-2 family, as the mating connector. Refer to
the ADIS16334 data sheet for more details.
Connector-down mounting methods eliminate the need for a
special flexible cable but require consideration of two additional
features: the mounting bracket and the mounting surface. The
example in Figure 5 uses a special mounting bracket that protects
the substrate and spreads the mounting force across the bottom
of the aluminum lid. Figure 6 and Figure 7 provide more details
on the bracket design, which fits the edge of the aluminum housing
and protects the substrate. Figure 8 provides a continuous printed
circuit board (PCB) design example, while Figure 9, Figure 10,
and Figure 11 provide an example design for mounting this to a
system bulkhead.
DESIGN TOOLS
Go to www.analog.com/ADIS16334 for footprints, schematic
symbols, and other design resources.
Rev. B | Page 1 of 8
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Application Note
TABLE OF CONTENTS
Introduction ...................................................................................... 1
Design Tools .......................................................................................1
Mating Connector ............................................................................ 1
Revision History ................................................................................2
Connector-Up Mounting................................................................. 1
Connector-Down Mounting ........................................................... 1
REVISION HISTORY
9/12—Rev. A to Rev. B
Changes to Figure 8 .......................................................................... 4
6/12—Rev. 0 to Rev. A
Added Mating Connector Section ................................................. 1
4/12—Revision 0: Initial Version
Rev. B | Page 2 of 8
Application Note
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M2 × 0.4mm
MACHINE SCREWS
ADIS1633x/BRACKET
(MOUNTING BRACKET)
ADIS16334BMLZ
CUT-OUT
FOR TOP OF
ADIS16334
10511-004
MATING CONNECTOR/PCB
Figure 5. Connector-Down Mounting Example
SHELF DIMENSIONS SUPPORT
DIRECT CONTACT WITH THE
BOTTOM OF THE
ADIS16334BMLZ HOUSING
10511-005
CUT-OUT AREA
PREVENTS CONTACT
WITH ADIS16334BMLZ
SUBSTRATE
Figure 6. ADIS1633x/BRACKET, Physical Features
Rev. B | Page 3 of 8
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Application Note
26.99
3.18
12.33
2.70
26.99
23.57
3.42
3.42
31.82
10511-006
35.54
3.72
23.27
Figure 7. ADIS1633x/BRACKET, Design Details
Ø 0.64 × 2
Ø 2.40 × 4
22.20
16.43
2.65
1.60
1.60 × 2
2.35
25.78
29.58
10511-007
4.35
2.35
8.43
24.85
23.25
22.50
20.50
Ø 2.75 × 2
30.75
Figure 8. Connector-Down, Continuous PCB Mechanical Design
Rev. B | Page 4 of 8
Application Note
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M2 × 0.4mm
MACHINE SCREWS
ADIS1633x/BRACKET
(MOUNTING BRACKET)
ADIS16334BMLZ
MATING CONNECTOR/PCB
MACHINED
FOR TOP OF
ADIS16334
10511-008
SYSTEM
BULKHEAD
Figure 9. Connector-Down, Bulkhead Mounting Example
Rev. B | Page 5 of 8
Application Note
2.90
15
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22.20
5.28
1.50
2.35
3.763
2.65
10511-009
25.78
30.75
Figure 10. Bulkhead Mechanical Design Example
13.20
10.60
1.57 ± 10%
2.60
3.64
9.50
Ø 0.64 × 2
10511-010
1.50
2.35
3.75
19.28
24.85
23.35
22.50
21.13
Ø2×4
Figure 11. PCB Interface Design Example
Rev. B | Page 6 of 8
Application Note
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NOTES
Rev. B | Page 7 of 8
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Application Note
NOTES
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registered trademarks are the property of their respective owners.
AN10511-0-9/12(B)
Rev. B | Page 8 of 8